Page 1 Medium-Voltage Switchgear Type NXPLUS C Fixed-Mounted Circuit-Breaker Switchgear up to 24 kV, Extendable Single Busbar, Metal-Enclosed, Gas-Insulated M edium -Voltage S witchgear INSTALLATION AND OPERATING INSTRUCTIONS Order No.: 802-9081.9 Revision: 11 Issue: 19-01-2018...
Page 2 All dimensions are given in mm. Siemens. Any statements contained herein do not create new warranties or modify the existing warranty. 2/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 3: Table Of Contents
15.12 Installing the switchgear termination....143 10.6 Fuse protection table for metering panel (with HV HRC fuse-links make SIBA) ....71 15.13 Mounting the busbar covers ......144 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 3/293...
Page 4 21.1 Closing the three-position switch ....193 Checks and maintenance work in case of special 21.2 Opening the three-position switch ....193 operating conditions ........275 21.3 Earthing/ready-to-earth with the three-position switch............194 4/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 5 32.6 Terminal assignment of motor control unit ..287 mechanisms........... 283 Siemens Service Hotline ......... 288 29.8 Test operation of the operating mechanisms .. 283 Permissible lubricants........284 Index............... 289 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 5/293...
Page 6: Safety Instructions
INFORMATION The illustrations included in this manual are simplified and serve to create a general understanding. The illustrations may therefore deviate from the actual product. 6/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 7 In case of internal arc, full personal protection is not provided, even if the personal protective equipment is worn. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 7/293...
Page 8: Security
"Spring not charged" indication IT security The Siemens software is regularly checked for safety. If weak points are identified in the process, which may allow third parties to access protection devices, information thereto is distributed through the SIPROTEC and SICAM Security Update Report Newsletter.
Page 9: Due Application
• Training regarding the applicable specifications for the prevention of accidents and the use of appropriate safety equipment. • Training in first aid and behavior in the event of possible accidents. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 9/293...
Page 10: Description
Extremely low "lifecycle costs" and maximum availability thanks to: • Maintenance-free design under normal operating conditions (for the service life) • Minimum space requirement • Long service life 10/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 11 The switchgear is therefore also approved for application on ships and platforms. Seismic withstand NXPLUS C switchgear can be upgraded for regions at risk from earthquakes. For upgrading, capability (option) earthquake qualification testing has been carried out in accordance with the following standards: •...
Page 12: Panel Types
These components can be Cable (not included in the Current transformer Voltage transformer -------------- connected partially or scope of supply) optionally HV HRC fuse Vacuum contactor 12/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 13: Examples For Panel Versions
Capacitive voltage detecting system (busbar: left side, ⑫ cable feeder: right side) Control board ⑬ ⑭ SIPROTEC bay controller (option) ⑮ Low-voltage compartment Fig. 4: Circuit-breaker panel (1000 A) 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 13/293...
Page 14 2650 mm for high low-voltage compartment 752 mm for deeper cable compartment cover *** 1245 mm for deeper cable compartment cover Fig. 6: Circuit-breaker panel (2000 A and 2500 A) 14/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 15 752 mm for deep cable compartment cover *** 1120 mm for deep cable compartment cover Fig. 7: Circuit-breaker panel (1000 A and 1250 A with 30000 operating cycles) 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 15/293...
Page 16 When only one cable is connected, the dimension is reduced by 275 mm Fig. 8: Circuit-breaker panel with top-rear cable connection (1250 A) Fig. 9: Circuit-breaker panel with bottom-rear cable connection (1250 A) 16/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 17: Disconnector Panels
Capacitive voltage detecting system (busbar: left side, cable feeder: right side) ⑫ Control board ⑬ SIPROTEC bay controller (option) ⑭ Low-voltage compartment Fig. 11: Disconnector panel (1250 A) 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 17/293...
Page 18 Capacitive voltage detecting system (busbar: left side, cable feeder: right side) Control board ⑪ ⑫ SIPROTEC bay controller (option) ⑬ Low-voltage compartment Fig. 12: Disconnector panel (2000 A and 2500 A) 18/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 19: Bus Sectionalizer
Bus sectionalizer panel with one or two disconnectors (1 panel spacing) (1000 A) Fig. 14: Bus sectionalizer panel with one or two disconnectors (1 panel spacing) (1250 A) 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 19/293...
Page 20 Control board ⑨ SIPROTEC bay controller (option) ⑩ Low-voltage compartment 2650 mm for high low-voltage compartment Fig. 16: Bus sectionalizer panel with disconnector (2 panel spacings) (1250 A) 20/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 21: Switch-Disconnector Panel
⑪ Control board ⑫ SIPROTEC bay controller (option) ⑬ Low-voltage compartment 2650 mm for high low-voltage compartment Fig. 17: Switch-disconnector panel with HV HRC fuses 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 21/293...
Page 22: Vacuum Contactor Panel
⑮ Low-voltage compartment 2650 mm for high low-voltage compartment Fig. 18: Vacuum contactor panel with HV HRC fuses Fig. 19: Vacuum contactor panel without HV HRC fuses 22/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 23: Ring-Main Panel
Voltage transformer (option) ⑦ Cover to cable compartment ⑧ Control board ⑨ Low-voltage compartment 2650 mm for high low-voltage compartment Fig. 21: Metering panel with HV HRC fuses 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 23/293...
Page 24: Components
• Undervoltage release (-Y7) • C.t.-operated release (-Y4) • Low-energy c.t.-operated release (-Y6) • Interlocking of feeder locking device against three-position disconnector - Circuit-breaker only lockable in earthed position 24/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 25: Vacuum Contactor
Vacuum contactor Design The Siemens high-voltage vacuum contactor 3TL72, 3TL73 and 3TL74 is a three-pole indoor contactor for rated voltages from 7.2 kV to 24 kV. The vacuum contactor can be controlled from remote and has an electromagnetic operating mechanism suitable for high switching rates and unlimited operating time.
Page 26: Three-Position Disconnector
- in DISCONNECTING function with 6NO + 6NC • Manual operating mechanism Additional equipment • Motor operating mechanism • Electromechanical interlock • Mechanical interlocking (fuse compartment cover can only be removed in earthed position) 26/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 27: Operating Mechanisms For Three-Position Switch
Description Operating mechanisms for three-position switch In NXPLUS C switchgear, the three-position switch-disconnector is used both as a simple three-position disconnector in combination with the circuit-breaker and as a three-position switch-disconnector. The three-position disconnector and the three-position switch-disconnector are operated from the switchgear front.
Page 28: Voltage Transformers 4Mt
- Auxiliary switches, motor operating mechanisms or shunt releases are wired to terminal strips in the low-voltage compartment. Voltage transformers 4MT In NXPLUS C switchgear, voltage transformers type 4MT2 and type 4MR can be mounted optionally. Common features • According to VDE 0414-9-3 and IEC 61869-3 •...
Page 29 - Voltage testing of switchgear and cables possible with mounted and earthed voltage transformer - Not suitable for 80% of the rated short-duration power-frequency withstand voltage (disconnect and earth voltage transformer through disconnecting facility) 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 29/293...
Page 30 For an inspection by a calibration office or an officially recognized inspecting authority, the test adapter (802-8061.3) shown below can be mounted on the voltage transformer 4MT3. 30/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 31: Current Transformers 4Mc
- Usable height for 1600 A, 2000 A, 2500 A busbar: 90 mm • Feeder current transformer - Inside diameter of transformer 106 mm - Max. usable height 214 mm 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 31/293...
Page 32: Hv Hrc Fuse Assembly
• Arrangement of the HV HRC fuse assembly underneath the switching-device vessel • HV HRC fuse assembly connected to the three-position switch-disconnector / vacuum contactor via welded-in bushings and connecting bars 32/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 33: Busbar System
To by-pass a removed panel, busbars with double length are available. With these, a defective panel can be by-passed within a few hours, and switchgear operation can continue. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 33/293...
Page 34: Cable Connection
➭ Use the same makes for combining plug types, surge arresters and limiters. For gas-insulated switchgear NXPLUS C, only cable plugs shielded by means of an external conductive layer (also called screened cable T-plugs) can be used. This external semi- conductive layer must be earthed.
Page 35 IEC, GOST Cellpack 50…400 EPDM 1x CTS 630A 24kV CTKSA 25…300 1x CTS 630A 24kV* CTKSA Ample 25…400 EPDM 1x AQT3-15/630 AHY5WZ7 GB/DL 35…500 1x AQT3-24/630* AHY5WZ7 GB/DL 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 35/293...
Page 36 1x CJBK10-630 GB/DL 25…500 1x CJB20-630* 1x CJBK20-630* GB/DL 25…630 EPDM 2x CSE-A 12630-xx 1x PC 630-3 IEC, GOST Kabeldon 2x CSE-A 24630-xx* 1x PC 630-3* IEC, GOST 36/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 37 At a continuous current of more than 1150 A, cable sealing ends with tin-plated, nickel-plated or silver-plated cable lugs are required. Observe the actual current- and short-circuit-carrying capacity of the cables and sealing ends. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 37/293...
Page 38 IEC, GOST Cellpack 50…400 EPDM 1x CTS 630A 24kV CTKSA 25…300 1x CTS 630A 24kV* CTKSA Ample 25…400 EPDM 1x AQT3-15/630 AHY5WZ7 GB/DL 35…500 1x AQT3-24/630* AHY5WZ7 GB/DL 38/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 39 1x CJB10-630 1x CJBK10-630 25…500 1x CJB20-630* 1x CJBK20-630* 25…630 EPDM 2x CSE-A 12630-xx 1x PC 630-3 IEC, GOST Kabeldon 2x CSE-A 24630-xx* 1x PC 630-3* IEC, GOST 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 39/293...
Page 40 3x 800PB/G 1x K480TB/G* 3x K800PB/G* 50…630 EPDM 1x 484TB/G 3x 804PB/G 35…630 1x K484TB/G* 3x K804PB/G* 800…1200 EPDM 1x 489TB/G 3x 809PB/G 1x K489TB/G* 3x K809PB/G* 40/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 41 At a continuous current of more than 1150 A, cable sealing ends with tin-plated, nickel-plated or silver-plated cable lugs are required. Observe the actual current- and short-circuit-carrying capacity of the cables and sealing ends. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 41/293...
Page 42 EPDM 4x 480TB/G 2x 800PB/G 800SA-10-xxx IEC, GOST, GB/DL 4x K480TB/G* 2x K800PB/G* 800SA-10-xxx 50…630 EPDM 2x 484TB/G 2x 804PB/G 800SA-10-xxx 35…630 2x K484TB/G* 2x K804PB/G* 800SA-10-xxx 42/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 43 EPDM 6x 480TB/G 4x 800PB/G 800SA-10-xxx IEC, GOST, GB/DL 6x K480TB/G* 4x K800PB/G* 800SA-10-xxx 50…630 EPDM 2x 484TB/G 4x 804PB/G 800SA-10-xxx 35…630 2x K484TB/G* 4x K804PB/G* 800SA-10-xxx 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 43/293...
Page 44 6x RSTI-CC-58xx Raychem 25…300 Silicone 2x RSTI-58xx-CEE1 6x RSTI-CC-58xx-CEE1 GOST 2x RSTI-58xx-CEE1 6x RSTI-CC-58xx-CEE1 GOST Observe the actual current- and short-circuit-carrying capacity of the cables and sealing ends. 44/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 45 2x SET 12 1x KU 23.2 2x distribution kit SAT IEC, GOST, GB/DL 25…240 2x SET 24* 1x KU 23.2* 2x distribution kit SAT* IEC, GOST, GB/DL 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 45/293...
Page 46 3x distribution kit RSTI- TRF0x* 25…300 Silicon 1x RSTI-58xx-CEE01 2x RSTI-CC-58xx-CEE01 3x distribution kit RSTI- GOST TRF0x 1x RSTI-58xx-CEE01* 2x RSTI-CC-58xx- 3x distribution kit RSTI- GOST CEE01* TRF0x* 46/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 47 At a continuous current of more than 1150 A, cable sealing ends with tin-plated, nickel-plated or silver-plated cable lugs are required. Observe the actual current- and short-circuit-carrying capacity of the cables and sealing ends. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 47/293...
Page 48 At a continuous current of more than 1150 A, cable sealing ends with tin-plated, nickel-plated or silver-plated cable lugs are required. Observe the actual current- and short-circuit-carrying capacity of the cables and sealing ends. 48/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 49 CTS 630A 24kV 50...400 EPDM with conductive layer, with capacitive measuring point, in combination with distribution kit Ample AQT3-15/630 25...400 EPDM with conductive layer, in combination with distribution kit 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 49/293...
Page 50 25...240 Silicone with conductive layer (optionally with metal housing), in combination with transition sealing end type SÜEV 10 NAKBA (Al), NAKBY (Al), NAKRA (Al) and NAKFA (Al) 50/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 51 EPDM with semi-conductive layer Outside cone type "C" 24 kV Ample AJM-15/630 Outside cone type "C" 12 kV EPDM with semi-conductive layer AJM-24/630 Outside cone type "C" 24 kV 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 51/293...
Page 52: Ready-For-Service Indicator
Green indication: ready for service Fig. 27: Principle of gas monitoring with ready-for- service indicator For the ready-for-service indicator, a gas-tight measurement box is installed inside the switchgear vessel. 52/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 53: Interlocks
To avoid mixing up, the cable compartment covers of panels with a width of 600 mm are marked with different holes. Fig. 28: Coding of cable compartment cover for 600 mm panel without fuses (view from above) 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 53/293...
Page 54: Voltage Detecting Systems
➭ Hold service flap at the provided handle, and close it in a controlled manner. • The label "Service flap equipment" shows the arrangement of the accessories inside the service flap. 54/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 55 Operating lever for DISCONNECTING Fig. 35: Operating lever for EARTHING/ function (black ball handles) READY-TO-EARTH function (red ball handles) • Hand crank for charging the circuit-breaker closing spring 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 55/293...
Page 56 • Units to check the capacitive interface and the voltage indicators • Unit to test the plug-in voltage indicators • Phase comparison test units • Holder for operating tools such as hand crank, double-bit key, operating lever 56/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 57 Description ① Holder for operating tools ② Handle of the cable compartment cover 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 57/293...
Page 58: Technical Data
High-voltage test equipment The following table shows the power consumption per panel for dimensioning the high- voltage test equipment. The test voltage is supplied through a feeder panel of NXPLUS C. Further panels to be tested are switched off during the test.
Page 59: Iec 62271-200
Type of accessibility: Switchgear in closed electrical service location, access "for authorized personnel only". Front Lateral Rear (for free-standing arrangement) 31.5 kA, 25 kA Arc test current Test duration 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 59/293...
Page 60: Standards, Specifications, Guidelines
In this way, the switchgear assemblies of this type series fulfil the basic protection requirements of the EMC guide. Protection against solid The panels of NXPLUS C fulfill the following degrees of protection according to IEC 62271-200, foreign objects, electric IEC 60529 and DIN VDE 0671-200: shock and water •...
Page 61: Selection Of Hv Hrc Fuse-Links
• IEEE 693-2005 - High required response spectrum (Figure A.1). Shock and vibration NXPLUS C switchgear can be upgraded to withstand stress caused by shock and vibration. For safety (option) upgrading, shock and vibration tests have been carried out in accordance with the following standards: •...
Page 62 ➭ Use exactly specified HV HRC fuse-links from the protection table. Fuse protection table for transformer panel NXPLUS C (HV HRC fuse-links make SIBA) Order number of SIBA extension tube: 34 006 01 (Siemens part number: 02911500) System operating...
Page 63 30 004 13.31,5 31.5 6 … 12 30 101 13.31,5 3 … 7.2 30 098 13.40 6 … 12 30 004 13.40 6 … 12 30 101 13.40 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 63/293...
Page 64 6 … 12 30 012 43.80 6 … 12 30 102 43.80 7.6 … 8.4 47.8 6 … 12 30 012 43,100 6 … 12 30 102 43,100 64/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 65 30 004 13.20 6 … 12 30 101 13.20 10 … 17.5 30 221 13.20 10 … 17.5 30 231 13.20 10 … 24 30 006 13.20 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 65/293...
Page 66 30 102 43.80 10 … 12 1000 5 … 6 6 … 12 30 012 43,100 6 … 12 30 102 43,100 10 … 24 30 022 43,100 66/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 67 31.5 10 … 17.5 30 231 13.31,5 31.5 10 … 24 30 006 13.31,5 13.8 10 … 17.5 30 231 13.40 10 … 24 30 006 13.40 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 67/293...
Page 68 30 231 13.25 10 … 24 30 006 13.25 15 … 17.5 12.2 31.5 10 … 17.5 30 231 13.31,5 31.5 10 … 24 30 006 13.31,5 68/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 69 5 … 6 10 … 24 30 014 13.50 20 … 23 1250 5 … 6 10 … 24 30 014 13.50 10 … 24 30 014 43.63 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 69/293...
Page 70: Motor Protection Table (With Hv Hrc Fuses Make Siba)
>12 - 23 kV HV motors with starting times up to 5 HV motors with starting times up to 15 s HV motors with starting times up to 30 s 70/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 71: Fuse Protection Table For Metering Panel (With Hv Hrc Fuse-Links Make Siba)
02911500 30 004 13.4 34 006 01 02911500 30 101 13.6,3 > 12 - 23 30 006 11.0,5 30 006 13.2 30 006 13.4 30 006 13.6,3 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 71/293...
Page 72: Rating Plates
10000 cycles Short-circuit breaking current Operating cycles Fig. 38: Permissible number of operating cycles n as a function of the breaking current I (r.m.s. value) in kA 72/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 73 Minimum command duration CLOSE Closing solenoid (-Y9) OPEN Shunt release (-Y1) OPEN Additional release 3AX (-Y2), (-Y4), (-Y6), (-Y7) Shortest impulse duration of the c.b. tripping signal 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 73/293...
Page 74 – – – – – – – – – – The operating voltage may deviate from the rated voltage specified in the table by –20% to +10%. 74/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 75 3AX1526 for DC operation. The module limits the overvoltage to approx. 500 V and is available for rated operating voltages from 60 V (DC) up to 220 V (DC). It contains two separate varistor circuits. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 75/293...
Page 76: Three-Position Disconnector For Circuit-Breaker, Disconnector And Bus Sectionalizer Panels ≥ 1000 A
– – AC 100 – – – – – – The operating voltage may deviate from the rated voltage specified in the table by –20% to +10%. 76/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 77: 10.11 Endurance Classes
Description 10.11 Endurance classes The switching devices of NXPLUS C switchgear conform to the classes according to IEC 62271- 100, -102 and -103. Overview Panel type Circuit-breaker Disconnector Switch-disconnector Earthing switch Circuit-breaker panel Bus sectionalizer panel Disconnector panel Vacuum contactor...
Page 78: Vacuum Contactor
100 000 or 500 000 operating cycles current: Auxiliary switch 3 NO + 4 NC or 5 NO + 6 NC freely available Counter Option Short-circuit breaking current 4 kA 78/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 79: 10.13 Insulating Gas
Gas leakage rate The gas leakage rate is < 0.1% per year (referred to the absolute gas pressure). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 79/293...
Page 80: End Of Life
Auxiliary devices such as short-circuit indicators have to be recycled as electronic scrap. Any existing batteries have to be recycled professionally. As delivered by Siemens, the switchgear does not contain hazardous materials as per the Hazardous Material Regulations applicable in the Federal Republic of Germany. For operation in other countries, the locally applicable laws and regulations must be observed.
Page 81: Installation
• Illumination, heating, power and water supply • Dimensions of installation scaffoldings and foundation rails • Installation of high-voltage cables • Earthing system • Switchgear room free of dirt and dust 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 81/293...
Page 82 Room height • NXPLUS C, all technical data, all types of installation: ≥ 2750 mm • NXPLUS C, 25 kA 1 s and 3 s, 1250 A busbar, 761 mm low-voltage compartment: ≥ 2400 mm • NXPLUS C with horizontal pressure relief duct: ≥ 2750 mm...
Page 83 The frame construction should feature longitudinal and cross girders to enable later panel replacements without problems. The dimensions result from the constructional data of NXPLUS C (see page 84, "Constructional data of the foundation"). Fig. 43: Frame construction with Fig.
Page 84: Constructional Data Of The Foundation
• Dimensions of the floor opening and the fixing points of the switchgear frame (see page 85, "Floor openings and fixing points" and see page 110, "Fastening the panel to the foundation"). 84/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 85 When only one cable is connected, the dimension is reduced by 275 mm 45 mm for deep cable compartment cover Fig. 49: Circuit-breaker panel with top-rear cable connection 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 85/293...
Page 86 Right-hand floor opening for control cables (only required for zero-sequence current transformers in the cable basement) ⑦ Cross member Fig. 52: Air-insulated metering panel Only for auxiliary transformer panels with lateral cable connection 86/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 87 600 mm (view from the front) ① ③ Floor bracing at the rear Fixing point ② Floor bracing at the front ④ Bracing bar (only panel width of 900 mm) 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 87/293...
Page 88 CTKS 630A 24kV Ample AQT3-15/630 AHT3-15/630 Solid-insulated bar Moser-Glaser - - - - - - Preissinger - - - - - - Ritz - - - - - - 88/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 89 CC 42-2500-3 Tyco Electronics RSTI L56xx RSTI -CC-L56xx RSTI-CC-L56xx Raychem RSTI 58xx RSTI -CC-58xx RSTI-CC-58xx RSTI-x95x RSTI-CC-x95x RSTI-CC-x95x RSTI x6Lxx RSTI -x6Lxx - - - - - - 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 89/293...
Page 90 - - - - - - Solid-insulated bar Moser-Glaser - - - - - - - - - - - - Preissinger - - - Ritz - - - 90/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 91 - - - - - - - - - - - - CSE-A xx630-03 CSE-A xx630-03 - - - - - - - - - - - - 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 91/293...
Page 92 CBxx-630 CBxx-630 - - - - - - CBxx-630 CCxx-630 CCxx-630 Tyco Electronics RSTI L56xx RSTI -CC-L56xx RSTI -CC-L56xx Raychem RSTI L58xx RSTI -CC-58xx RSTI -CC-58xx 92/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 93 - - - - - - - - - - - - CTS 630A 24kV CTKS 630A 24kV CTKS 630A 24kV - - - - - - 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 93/293...
Page 94: Transport Units
Average value, depending on the degree to which the panel is equipped Auxiliary transformer panel and air-insulated metering panel Center of gravity The center of gravity of NXPLUS C (all panels) is located at the following position: Position of the center of gravity Panel width 600 mm...
Page 95 Dangerous Goods by Road (ADR)", Siemens gas-insulated medium-voltage switchgear does not belong to the category of dangerous goods in respect of transportation, and is exempted from special transport regulations according to ADR, Clause 1.1.3.1 b). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 95/293...
Page 96: Before Installation
Before installation 13.1 Preliminary clarifications In order to load the transport units in a suitable installation order, the regional Siemens representative requires the following information from you several weeks before delivering the switchgear: • Sketch of the installation room including the locations and numbers of the individual panels and the storage space for the accessories •...
Page 97: Tools/Auxiliary Means
- Loading capability (yield strength): R ≧ 780 MPa (N/mm • Lint-free cleaning paper • Wiping cloths • Grinding sponge with corundum grit 100 • Abrasive fabric 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 97/293...
Page 98: Comments On Electromagnetic Compatibility
Installation Set of assembly facilities The "set of assembly facilities" (order no.: 802-9035.3, available at the regional Siemens representative) is recommended. The "set of assembly facilities" comprises the following auxiliary means: • Certified lifting rods (crane rods) for lifting or lowering panels with panel widths of 600 mm and 900 mm - 2 lifting rods: Length 753 mm, Ø...
Page 99 If shields are used as protective earth conductors at the same time, the connected plastic- insulated lead must be marked green/yellow over its entire length. Non-insulated connections are inadmissible. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 99/293...
Page 100: Unloading And Erecting The Switchgear
Siemens representative immediately. ➭ Have the transport damages repaired, otherwise you may not start installation. ➭ Refit the packing. 100/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 101: Unloading And Transporting To Place Of Installation
➭ Undo the bolted joints of the cable compartment cover. ➭ Push the lever of the locking device ① or of the interlock ② upwards and hold it. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 101/293...
Page 102 ➭ Lift the transport unit by means of a crane, hydraulic jacks or a fork-lift truck with the help of lifting rods (before lifting, knock the boards marked at the front out of the wooden pallet by means of a fork-lift truck). 102/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 103 The openings for the crane rods are released. Fig. 58: Releasing the openings for the crane rods ➭ Insert the crane rods into the openings. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 103/293...
Page 104 ② Low-voltage compartment Fig. 60: Craning the low-voltage compartment ➭ Mount the lifting gear. ✔ Now the low-voltage compartment can be lifted onto the panel. 104/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 105: Checking The Ready-For-Service Indicator
➭ Read the ready-for-service indicator, see page 189, "Ready-for-service indicator". ✔ If the pointer is in the green area, the gas filling is in order. ➭ If the pointer is in the red area, contact the Siemens Service Hotline. Checking the signaling...
Page 106 Installation Fig. 64: Pointer position after operation of the plastic part at the signaling switch 106/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 107: Assembling The Switchgear
➭ Do not remove the bolts sealed with wax. ➭ If the sealing wax is broken, contact the regional Siemens representative. Fig. 65: Bolts with sealing wax at the Siemens high-voltage vacuum contactor 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 107/293...
Page 108: Aligning And Joining The Panels
➭ Mount the sealing strips on the rear wall of the switchgear. To mount the sealing strips, use the M5x45 Torx bolts from the pressure relief duct. Take the other bolts from the supplementary equipment. 108/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 109 Any removed cable compartment covers and operating mechanism covers must therefore be mounted on the same panels again. ➭ Write the corresponding panels numbers on all covers before removal. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 109/293...
Page 110: Fastening The Panel To The Foundation
① Transport braces ➭ Remove the nuts and bolts of the transport braces. ➭ Remove the transport braces. ✔ The transport braces are removed. 110/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 111: Assembling The Busbars
➭ Place a board on the mounting plates in order to distribute the load evenly: - Board with min. 1200 mm length for 600 mm wide panels - Board with min. 1800 mm length for 900 mm wide panels 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 111/293...
Page 112 Mounting plate of low- voltage compartment Phase sequence ① Phase L1 ② Phase L2 ③ Phase L3 Fig. 69: Phase sequence of bushings (view from the right) 112/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 113 Copper washer, galvanized ⑰ Lock washer ⑱ Connection stud ⑲ Coupling cross adapter ⑳ Adapter lip Fig. 71: Busbars for busbar current 1600, 2000 and 2500 A 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 113/293...
Page 114 Auxiliary transformer panel Disconnector panel Incoming sectionalizer Air-insulated metering panel Bus sectionalizer Bus coupler LKLS Bus sectionalizer/circuit-breaker panel Switch-disconnector panel Ring-main panel LKTS Bus sectionalizer/disconnector panel Vacuum contactor panel 114/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 115 ➭ Apply mounting paste to the push-on surfaces (gray surfaces) of the busbars ③ . ➭ Lay the contact half-shells ③ on the ends of the busbar ② and hold them. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 115/293...
Page 116 ➭ Connect the busbar unit with the next end adapter or cross adapter. ➭ After mounting the busbar unit, mount the current transformer again. 116/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 117 ➭ Insert another busbar section into the first busbar section. ➭ Insert further busbar sections until the complete busbar run is loosely plugged on the bushings. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 117/293...
Page 118 ⑰ and the hexagon nut M12 ⑬ (tightening torque: 50 Nm). Inserting the ➭ Apply mounting paste to the screw-type cone ⑭ and the upper push-on surface of the cross screw-type cone adapter or end adapter. 118/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 119 ➭ Mount the busbar support (only for 31.5 kA, see page 122, "Mounting the busbar support"). ➭ Install the voltage transformers (option, see page 127, "Installing busbar voltage transformers"). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 119/293...
Page 120 ➭ Check the seating of the adapter lip and adjust, if required. ➭ Push the busbar units on the adapters of the first busbar level. 120/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 121 120, "Mounting the second busbar level for the 1600/2000/2500 A busbar". Fig. 78: Mounting the third busbar level (bus sectionalizer panel 2500 A) ✔ The installation of the busbar is completed. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 121/293...
Page 122: Mounting The Busbar Support
• Mount the busbar support at the upper busbar level according to the enclosed installation instructions Do not mount the busbar support: • On bus sectionalizer panels • On right-hand end panels • On panels with busbar current transformers 122/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 123 Fig. 82: Mounting the busbar support ➭ Mount the earthing cable at the earthing connections of the busbar support and the switchgear vessel or transformer mounting plate. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 123/293...
Page 124: Installi Ng Current Transformers On The Busbar
① Vertical wiring duct (only for connecting wires with steel tube) ② Low-voltage compartment ③ Right-hand wiring duct Fig. 84: Wire routing (air-insulated metering panel) 124/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 125 ➭ Mount the current transformers on the switchgear together with the current transformer mounting plate. While installing the current transformers, observe the direction of side P1. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 125/293...
Page 126 ① Secondary leads ② Vertical wiring duct (only for secondary leads with steel tube) ③ Cutout Fig. 86: Cable routing into the low-voltage compartment 126/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 127: Installing Busbar Voltage Transformers
⑬ End adapter/cross adapter ⑦ Cast-resin cone of voltage transformer Component pre-assembled at the end adapter/cross adapter For panel types LS 450 mm and auxiliary transformer panel 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 127/293...
Page 128 - Other panel types: The threaded studs on the switchgear vessel must fit into the holes of the frame feet. ➭ Depending on the panel type, fasten the voltage transformer frame ③ using nut-and- washer assemblies or bolts ④ . 128/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 129 / cross adapter before mounting. ➭ While mounting the voltage transformer, let excess air out of the end adapter / cross adapter with a cable strap ⑮ . 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 129/293...
Page 130 Secondary leads are not pre-assembled on all voltage transformer types. leads ➭ Connect the secondary leads that have been supplied separately to the voltage transformer. Observe the phase sequence! Fig. 95: Connecting secondary leads 130/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 131 ➭ Apply 15 to 20 V DC to L1, L2, L3 to earth with the battery and observe the voltmeter. ✔ If the pointer moves a little bit, the voltage transformer connection is in good order. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 131/293...
Page 132: Interconnecting The Earthing Busbars
① (bolt M12). In addition, earth every fifth panel. ➭ Lay the earthing cable ② through the left-hand wiring duct ③ into the cable basement. ➭ Connect the earthing cable to the substation earth. 132/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 133: 15.10 Installing The Low-Voltage Compartment
• Contact washer 8 • Bolt-and-washer assembly M8 ③ Lateral bolted joint: • Self-tapping oval head bolt M5 • Contact washer 5 Fig. 100: Bolting the low-voltage compartment together 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 133/293...
Page 134: 15.11 Installing The Horizontal Pressure Relief Duct
900 mm Evacuation duct 600 mm 600 mm Evacuation duct 500 mm 500 mm Evacuation duct 450 mm 450 mm Evacuation duct, adjustable 520 to 685 mm 134/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 135 Type designation Angle Dimensions Evacuation duct angle, vertical 45° Evacuation duct angle, horizontal 45° Supports Type designation Illustration Fixing lugs for evacuation duct Fixing bracket, evacuation duct 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 135/293...
Page 136 Rear wall Connecting element, rear evacuation, (with pre- assembled evacuation duct element) Rear wall Rear wall, closed Top cover Top cover with ventilation 136/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 137 If a higher low-voltage compartment is mounted, it is not possible to install the horizontal pressure relief duct from the front. ➭ Install from the top or from the side. ➭ Remove the low-voltage compartment and install from the front. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 137/293...
Page 138 ➭ Place the top cover on the rear wall. ➭ Bolt the top cover together with the rear wall using 3 bolts M8, and place it on the switchgear. 138/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 139 (tightening torque: 20 Nm). 450 mm panel width: 3x aME: 6x EB = 6x ➭ Mount further rear walls. ➭ Mount further rear walls. Checking the ventilation flap 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 139/293...
Page 140 Number of bolted joints (rear wall): Panel width 600 mm: Panel width 900 mm: Panel width 450 mm: aME: 4x EB: 4x ➭ Mount further top covers. 140/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 141 The installation of the duct elements shown here is illustrated as an example with a 500 mm elements duct element and an adjustable duct element. Mount other duct elements according to the same principle. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 141/293...
Page 142 ➭ Push the duct element ② into the joining bracket ③ of the adjustable duct element ① . ➭ Fasten the duct elements at 12 connecting points using bolt-and-washer assemblies M8x20 and washers (tightening torque: 20 Nm). 142/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 143: 15.12 Installing The Switchgear Termination
Installation 15.12 Installing the switchgear termination INFORMATION The end panel of the NXPLUS C switchgear is delivered as standard with pre-assembled switchgear termination and termination angle. If the customer ordered without pre-assembled switchgear termination and termination angle, perform the following work operations.
Page 144: 15.13 Mounting The Busbar Covers
• Voltage transformers (option) are mounted at the busbar. • Identify the busbar cover components to be mounted for the individual panel using the corresponding component table: 144/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 145 146, "Component table 2" IP31D 1600 A IP32D see page 148, "Component table 4" 2000 A IP34D 2500 A see page 146, "Component table 2" 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 145/293...
Page 146 Only for end panel or if the adjacent panel has a width of 600 mm. Only for bus sectionalizer panel, the cover consists of two components. Only for bus sectionalizer panel. 146/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 147 - The adjacent panel has a width of 600 mm. ➭ Repeat the installation of the busbar cover for all panels. ✔ The installation of the busbar cover is completed. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 147/293...
Page 148 ① ③ ④ ⑤ ⑥ ⑥ ⑦ ⑦ ⑧ ⑨ ⑩ ⑨ ⑩ ⑪ Number in exemplary illustration: Intermedi ate panel Left end panel Right end panel 148/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 149 Only for left-hand or right-hand adjacent panel with a panel width of 600 mm. Component tables 3 and 4: Examples for busbar covers (view from the rear) 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 149/293...
Page 150 - The adjacent panel has a width of 600 mm. ➭ Repeat the installation of the busbar cover for all panels. ✔ The installation of the busbar cover is completed. 150/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 151: 15.14 Mounting The Air Guides
The component table to use depends on the degree of protection of the panel. Degree of protection Component table IP3XD see page 152, "Component table 1" IP31D, IP32D or IP34D see page 152, "Component table 1" 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 151/293...
Page 152 Wall Free Wall Free Wall Intermedi ate panel Free Wall Free 1160 not relevant Wall Free Wall Right end panel Free 1160 not relevant Wall 152/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 153 ➭ Panel in free-standing arrangement: Mount the rear wall ④ at the rear air guide ③ . ➭ Mount the rear air guide ③ . ➭ End panel: Mount the left-hand or right-hand side wall ② . 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 153/293...
Page 154: 15.15 Extension With Individual Panels
Always observe the Five Safety Rules: ➭ Isolate. ➭ Secure against reclosing. ➭ Verify safe isolation from supply. ➭ Earth and short-circuit. ➭ Cover or barrier adjacent live parts. 154/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 155: Installation Work At The Floor Cover
➭ Remove all other floor plates ④ : Undo 4 bolts each and pull out the floor plate. Then pull out the rubber sleeves ⑤ to the front. ✔ The panel is ready for connecting the cable T-plugs. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 155/293...
Page 156 ➭ Connect the cable T-plug (see page 158, "Connecting cable T-plugs"). ➭ Insert the rubber sleeve into the recess of the floor plate. Fig. 110: Example for panel width 900 mm 156/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 157 Fig. 113: Example for panel width 900 mm ➭ Bolt the floor plate and the termination plate together using 4 bolts and washers. Fig. 114: Example for panel width 600 mm 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 157/293...
Page 158: Connecting Cable T-Plugs
16.2 Connecting cable T-plugs For NXPLUS C switchgear, only cable T-plugs shielded by means of an external semi- conductive layer may be used as a rule. The suitable cable plugs for outside-cone bushings of interface type C according to EN 50181 are listed in the section "Description" (see page 34, "Cable connection"NXPLUS C).
Page 159 (tightening torque for the arcing plates: 20 Nm). The associated floor plate of the floor cover must be mounted after installation of a row of cable T-plugs (see page 156, "Mounting the floor plates"). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 159/293...
Page 160 ➭ Mount the cable clamps. Use cable clamps made of non-magnetizable materials (plastic, aluminum) to fasten the high-voltage cables at the cable bracket, e.g. plastic clamps make id-Technik (cable clamp K26-38 mm, cable clamp K36-52 mm). 160/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 161 Without the use of the insulated busbar, each individual cable shield must be led to the zero-sequence current transformer and earthed. Fig. 120: Basic scheme 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 161/293...
Page 162 Fastening at the partition to the operating mechanism compartment ② Cable T-plugs ③ Air guide ④ Switchgear vessel Fig. 122: Arcing plates at the cable connection: Three cables per phase 162/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 163: Panels 2000 A, 2500 A With Double Connections
If no cable plugs are used (asymmetrical power supply), one of the following cable lug types must be used at the cable terminations: • Tin-plated cable lugs • Nickel-plated cable lugs • Silver-plated cable lugs 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 163/293...
Page 164: Connecting Surge Arresters
➭ Mount the surge arresters according to the manufacturer's assembly instructions. ➭ Ensure earth connection of the surge arrester according to the manufacturer's assembly instructions. 164/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 165: Connecting Surge Limiters
Fig. 125: Mounted surge arrester (example) 16.5 Connecting surge limiters You can only connect the surge limiter 3EH5 ... -5BA0 of Siemens (rated voltage = 3.6 kV / 4.8 kV / 7.2 kV). For connection at the cable connection, the following options are possible: •...
Page 166: Connecting Auxiliary Circuits
Installation 16.6 Connecting auxiliary circuits The circuit-breaker switchgear NXPLUS C is delivered with operating and control equipment as ordered. The operating and control equipment as well as the terminals in the switchgear are identified in the same way as in the associated circuit diagrams.
Page 167 ③ . Fig. 129: Cables in the right-hand wiring duct ① Current transformer lead ② Voltage transformer lead ③ Lead of capacitive voltage detecting system 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 167/293...
Page 168 The terminals are arranged in the low-voltage compartment. ➭ Lay the cables for the three-position switch and, if required, for the current and voltage transformers in the low-voltage compartment. 168/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 169 Removing the ➭ Push the STG plug slightly to the screwing side until the latching noses come out of the STG plug latching slots of the modular terminal. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 169/293...
Page 170 Installation ➭ Pull the STG plug horizontally out of the VBSTB4 modular terminal. ✔ The STG plug is removed. 170/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 171: Installation Of Degree Of Protection Versions Ip31D, Ip32D And Ip34D
Fig. 133: Mounting the sealing strap on the angle plate (view from the rear) ➭ Mount the angle plate on the low-voltage compartment using 4 self-tapping bolts M5x16. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 171/293...
Page 172 ➭ Bolt the connecting plates together with the roof plates and the angle plates on the right and on the left. To do this, use 4 self-tapping bolts M5x16. Fig. 136: Fastening the connecting plates (view from the rear) 172/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 173 Roof plate ⑨ Sealing strap for left end plate ⑩ Left end plate Fig. 138: Mounting the protection against vertically falling water drops on the left end panel 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 173/293...
Page 174 600 mm. ➭ Additionally, fasten the angle plate at the air guide and the busbar cover using 3 bolts M5x10. 174/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 175: Ip32D - Protection Against Vertically Falling Water Drops For Switchgear Inclined Up To 15
④ Edge protection ⑤ Angle plate Fig. 142: Roof plates with edge protection ④ Edge protection Fig. 143: Edge protection when the switchgear is inclined by 15° 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 175/293...
Page 176: Ip34D - Protection Against Splashing Water From Any Direction
⑤ Sealing angle, right side ⑥ Low-voltage compartment ⑦ Angle plate ⑧ Sealing strap for connecting plate Fig. 145: Mounting the sealing angle (example: right end panel) 176/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 177: Commissioning
➭ Hook the front cover in. ➭ Fasten the front cover at the lower edge tight using 2 bolts with cutting ring M5 (tightening torque: 7 Nm). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 177/293...
Page 178 ➭ Put the covers on the plug-in sockets of the capacitive voltage detecting systems. ➭ Touch up scratches and impacts in the surface painting. Available kit: Touch-up set (spatula and paint) and paint pen. 178/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 179: Checking The Accessories
- Actuate the manual OFF pushbutton. - Actuate the manual ON pushbutton. - Actuate the manual OFF pushbutton again. ➭ Check if the "spring charged" indicator shows "spring charged". 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 179/293...
Page 180 (recommendation: for turning the bolt more easily, wear a glove). ➭ Refit the front cover. ➭ Test fuse tripping with test fuse. ➭ Check HV HRC fuse-links. 180/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 181 ➭ To activate the undervoltage release, shift the retaining bolt of the striker from position A to position B. ➭ Refit the front cover. ✔ The circuit-breaker operating mechanism is now ready for operation with undervoltage release. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 181/293...
Page 182 ✔ The three-position disconnector can be put into operation again. ➭ Perform test operation of the three-position disconnector. Completing test operation ➭ Switch all switching devices to OPEN position. 182/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 183: Performing The Power- Frequency Voltage Test
➭ Test phases L1, L2 and L3 consecutively for 60 seconds with the rated short-duration power- frequency voltage. Completing the check ➭ Switch the voltage transformer disconnector to CLOSED position. ➭ Mount the surge arresters. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 183/293...
Page 184: Primary Injection Test
✔ The plug-in sockets of the capacitive voltage detecting system on phase L1 are accessible. ➭ Plug the measuring cables of the phase comparison test unit into the plug-in sockets of the capacitive voltage detecting system according to the operating instructions. 184/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 185 - Electricians and persons who have been properly instructed in electrical engineering - Persons under the supervision of electricians and persons who have been properly instructed in electrical engineering 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 185/293...
Page 186: Operation
➭ If the pointer of the ready-for-service indicator is in the red area: - All panel types except circuit-breaker panels: Do not operate the switchgear. - Contact the Siemens Service Hotline. 186/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 187: Control Elements And Indicators
Manual charging for circuit-breaker ⑬ Actuating opening for earthing switch (EARTHING/ ⑭ Actuating opening for disconnector READY-TO-EARTH function) (DISCONNECTING function) ⑮ Control gate for actuating openings ⑯ Ready-for-service indicator 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 187/293...
Page 188: Position Indicators
Closing spring charged Closing spring not charged 19.3 Operations counter One operating cycle corresponds to one closing operation and one opening operation of the circuit-breaker. Number of operating cycles 188/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 189: Ready-For-Service Indicator
• Shackle diameter of the padlock: Min. 6 mm. Actuating the locking ➭ Push the lever of the locking device upwards. device Fig. 155: Circuit-breaker locking device ➭ Fit and lock the padlock. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 189/293...
Page 190: Operating The Circuit-Breaker
➭ Turn hand crank clockwise approx. 30 turns. ✔ The indication "closing spring charged" appears in the inspection window. ➭ Remove hand crank. ➭ Close cutout with cover. 190/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 191: Circuit-Breaker Test Operation
✔ The closing spring is recharged automatically. ➭ Check whether the position indication "circuit-breaker CLOSED" appears. ➭ Open the circuit-breaker. ➭ Check whether the position indication "circuit-breaker OPEN" appears. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 191/293...
Page 192: Operating The Three-Position Switch
Operating lever for DISCONNECTING operation Operating lever for EARTHING/READY-TO- EARTH operation Fig. 156: Symbols on operating lever with Fig. 157: Symbols on operating lever black ball handles with red ball handles 192/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 193: Closing The Three-Position Switch
➭ Insert the operating lever for the DISCONNECTING operation (black ball handles) and - with spring-operated mechanism / spring-operated/stored-energy mechanism (600 mm panel), turn 90° counter-clockwise; - with slow motion mechanism (900 mm panel), turn 180° counter-clockwise. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 193/293...
Page 194: Earthing/Ready-To-Earth With The Three-Position Switch
➭ Insert the operating lever for the EARTHING/READY-TO-EARTH operation (red ball handles) and, - with spring-operated mechanism / spring-operated/stored-energy mechanism (600 mm panel), turn 90° counter-clockwise. - with slow motion mechanism (900 mm panel), turn 180° counter-clockwise. 194/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 195: Operating The Three-Position Switch With Motor-Operating Mechanism
OPEN position (see page 215, "Circuit-breaker panel: Disconnecting the feeder from the busbar"). Fig. 158: Switching the three-position switch-disconnector to OPEN position, example for 600 mm panel width 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 195/293...
Page 196: Emergency Operation Of The Three-Position Switch With Slow Motion Mechanism (900 Mm Panel Width)
Fig. 161: Position indicator for EARTHING function in faulty position To do this, the adapter for emergency operation has to be pushed on the standard operating lever. 196/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 197 Insert the operating lever with pushed-on adapter in such a way that the inner slot of the adapter fits on the pin of the operating shaft. Fig. 164: Inserting the operating lever with pushed-on adapter 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 197/293...
Page 198 DISCONNECTING function in such a way that the pin of the hexagonal shaft fits in the inner slot of the adapter. Fig. 165: Operating lever with pushed-on adapter (DISCONNECTING function) 198/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 199 (The interrogation lever and the control Remove the adapter from the operating lever and lay it back gate return to their initial position. The actuating into the service flap opening closes) 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 199/293...
Page 200 Switching operations Perform further manual switching operations only with the associated operating lever for the after emergency DISCONNECTING or EARTHING functions. operation 200/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 201: Work-In-Progress Earthing
➭ Earthing accessories from different manufacturers can be connected to the spherical bolts of the adapters. Diameter of the spherical bolts: 20 or 25 mm. Example for earthing accessories: 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 201/293...
Page 202 25 mm RSTI-395x; RSTI-CC-395x; RSTI-595x; RSTI-CC-595x CJB10-EB Bolt CJBxx-630; CJBKxx-630 ABB Kabeldon JPB 630 Bolt CSE-A xx630-xx Cellpack CPES 20 mm CTS 630A 24kV; CTKS 630A 24kV 202/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 203: Verification Of Safe Isolation From Supply
➭ Insert the LRM voltage indicator consecutively into the plug-in sockets of the phases L1, L2 and L3. ✔ If the LRM voltage indicator does not flash or light up in any of the 3 phases, the phases are not live. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 203/293...
Page 204 The marking for documentation of the repeat test of the interface condition is located next to the LRM plug-in sockets: Fig. 168: Documentation to repeat test of interface condition 204/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 205: Vois And Capdis Indications
Fig. 171: CAPDIS-S2+: Cover closed opened ① LC display ② Test socket L1 ③ Test socket L2 ④ Earth socket ⑤ Test socket L3 Fig. 172: VOIS+: Cover opened 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 205/293...
Page 206 Overvoltage present (lights up permanently). U ≠ 0 U = 0 Indication: "ERROR" e.g. in case of missing auxiliary voltage. LED does not light up, LED lights up 206/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 207: Wega Indications
• Voltage present and integrated repeat test passed. • Voltage signal too high. U ≠ 0 U = 0 • Auxiliary voltage missing. LED does not light up, LED lights up 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 207/293...
Page 208: Replacing Hv Hrc Fuse-Links
If panels with fuses are equipped with an incorrect cable compartment cover, the fuse slide located inside the fuse box can detach and slip out. ➭ In panels with fuses, use the cable compartment cover intended for this purpose. 208/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 209 ➭ Push the interlocking lever ① of the cable compartment cover ② upwards, lift the cable compartment cover, and unhinge it. ➭ Withdraw the fuse slide with the HV HRC fuse-link. ① Sliding rail 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 209/293...
Page 210 ➭ Pull the retaining bracket upwards at the fuse slide and press the HV HRC fuse-link into the mounting clips. ➭ Insert the fuse slide with the HV HRC fuse-link in the guide slot. The sliding rail ① must point upwards. 210/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 211 ➭ Push the interlock of the cable compartment cover downwards. ➭ Fasten the cable compartment cover using bolts with cutting ring. ➭ De-earth the feeder. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 211/293...
Page 212: Operating The Feeder Voltage Transformer
✔ The position indicator shows the EARTHED position. ➭ Refit and lock the padlock. ➭ Remove the double-bit key. ✔ The voltage transformer is isolated from high-voltage, earthed, and secured against reclosing. 212/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 213: Connecting The Feeder Voltage Transformer
➭ Hook the cable compartment cover in and fasten it with the fixing bolts. ✔ The voltage transformer disconnector is connected to high voltage and secured against unauthorized opening. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 213/293...
Page 214: Short Instructions
CLOSED position (insert the operating lever interrogation lever and the control gate the circuit-breaker. and turn 90° clockwise). return to their initial position. The actuating opening closes). 214/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 215 The actuating opening and turn 90° counter-clockwise). position. The actuating opening closes). for the DISCONNECTING function opens). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 215/293...
Page 216 ➭ Push the locking device ➭ Fit a padlock. (the interrogation lever and the circuit-breaker. upwards. control gate return to their initial position. The actuating opening closes). 216/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 217 EARTH to OPEN position (insert control gate return to their lower position. The actuating the operating lever and turn initial position). opening for the READY-TO- 90° counter-clockwise). EARTH function opens). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 217/293...
Page 218 The feeder is earthed. ➭ Remove the operating lever (the ➭ Push the locking device upwards and fit control gate returns to its initial a padlock. position). 218/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 219 Remove the operating lever (the control READY-TO-EARTH to OPEN position (turn gate returns to its initial position). operating lever 90° counter-clockwise).The circuit-breaker opens automatically before the three-position disconnector opens. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 219/293...
Page 220: Operating Circuit Breaker Panels (900 Mm Panel Width)
CLOSED position (insert the operating lever interrogation lever and the control gate the circuit-breaker. and turn 90° clockwise). return to their initial position. The actuating opening closes). 220/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 221 The actuating opening for the and turn 180° counter-clockwise). return to their initial position. The DISCONNECTING function opens). actuating opening closes). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 221/293...
Page 222 180° clockwise). return to their initial position. The actuating opening closes). ➭ Push the locking device upwards. ➭ Fit a padlock. 222/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 223 The actuating opening for the counter-clockwise). READY-TO-EARTH function opens). ➭ Remove the operating lever (the interrogation lever and the control gate return to their initial position. The actuating opening closes). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 223/293...
Page 224 1 s). The feeder is earthed. ➭ Remove the operating lever (the control gate ➭ Push the locking device upwards and fit a returns to its initial position). padlock. 224/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 225 READY-TO-EARTH to OPEN position returns to its initial position. The actuating (turn operating lever 180° counter- opening closes). clockwise). The circuit-breaker opens automatically before the three- position disconnector opens. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 225/293...
Page 226: Operating Vacuum Contactor Panels
(e.g. operating lever and turn 90° clockwise). return to their initial position. The actuating SIPROTEC). opening closes). 226/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 227 The actuating opening for the operating lever and turn 90° counter- return to their initial position. The actuating DISCONNECTING function opens). clockwise). opening closes). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 227/293...
Page 228 EARTHED position (insert interrogation lever and the control gate the operating lever and turn 90° clockwise). return to their initial position. The actuating opening closes). 228/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 229 EARTHED to OPEN interrogation lever and the control gate position (insert the operating lever and turn return to their initial position. The actuating 90° counter-clockwise). opening closes). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 229/293...
Page 230: Operating Switch-Disconnector, Disconnector, Ring-Main And Metering Panels With 600 Mm Panel Width
Remove the operating lever (the disconnector to CLOSED position (insert the interrogation lever and the control gate operating lever and turn 90° clockwise). return to their initial position). 230/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 231 Remove the operating lever (the disconnector to OPEN position (insert the interrogation lever and the control gate operating lever and turn 90° counter- return to their initial position). clockwise). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 231/293...
Page 232 Remove the operating lever (the disconnector to EARTHED position (insert interrogation lever and the control gate the operating lever and turn 90° clockwise). return to their initial position). 232/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 233 Remove the operating lever (the disconnector from EARTHED to OPEN interrogation lever and the control gate position (insert the operating lever and turn return to their initial position). 90° counter-clockwise). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 233/293...
Page 234: Operating Disconnector Panels As Of 2000 A (900 Mm Panel Width)
➭ Remove the operating lever (the CLOSED position (insert the operating lever and interrogation lever and the control gate turn 180° clockwise). return to their initial position). 234/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 235 Remove the operating lever (the to OPEN position (insert the operating interrogation lever and the control gate lever and turn 180° counter-clockwise). return to their initial position). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 235/293...
Page 236 ➭ Remove the operating lever (the EARTHED position (insert the operating lever interrogation lever and the control gate and turn 180° clockwise). return to their initial position). 236/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 237 Remove the operating lever (the EARTHED to OPEN position (insert the interrogation lever and the control gate operating lever and turn 90° counter- return to their initial position). clockwise). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 237/293...
Page 238: Operating Bus Sectionalizer Panels With 600 Mm Panel Width
To couple the busbars, close the circuit- CLOSED position (insert the operating lever and interrogation lever and the control gate breaker. turn 90° clockwise). return to their initial position). 238/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 239 OPEN position (insert the operating lever interrogation lever and the control gate position. The actuating opening for the and turn 90° counter-clockwise). return to their initial position). DISCONNECTING function opens). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 239/293...
Page 240 90° clockwise). return to their initial position). ➭ Push the locking device upwards. ➭ Fit a padlock. 240/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 241 90° counter- READY-TO-EARTH function opens). clockwise). ➭ Remove the operating lever (the interrogation lever and the control gate return to their initial position). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 241/293...
Page 242: Operating Bus Sectionalizer Panels With 900 Mm Panel Width
To couple the busbars, close the circuit- CLOSED position (insert the operating lever interrogation lever and the control gate breaker. and turn 180° clockwise). return to their initial position). 242/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 243 OPEN position (insert the operating lever interrogation lever and the control gate position and the actuating opening for the and turn 180° counter-clockwise). return to their initial position). DISCONNECTING function opens). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 243/293...
Page 244 180° clockwise). return to their initial position). ➭ Push the locking device upwards. ➭ Fit a padlock. 244/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 245 180° counter- READY-TO-EARTH function opens). clockwise). ➭ Remove the operating lever (the interrogation lever and the control gate return to their initial position). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 245/293...
Page 246: Operating Bus Sectionalizer Panels With Two Three-Position Disconnectors And With 600 Mm Panel Width
CLOSED position (insert the interrogation lever and the control gate again and hold it. operating lever and turn 90° clockwise). return to their initial position). 246/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 247 The left-hand actuating opening operating lever and turn 90° counter- return to their initial position). for the DISCONNECTING function opens). clockwise). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 247/293...
Page 248 90° counter- opening for the DISCONNECTING function clockwise). opens). ➭ Remove the operating lever (the interrogation lever and the control gate return to their initial position). 248/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 249 (insert the operating lever and turn 90° return to their initial position). for the READY-TO-EARTH function opens). clockwise). ➭ To earth the left-hand busbar system, close ➭ Fit a padlock. the circuit-breaker. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 249/293...
Page 250 Remove the operating lever (the disconnector to OPEN position (insert the interrogation lever and the control gate operating lever and turn 90° counter- return to their initial position). clockwise). 250/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 251 READY-TO- clockwise). EARTH function opens). ➭ To earth the right-hand busbar system, ➭ Fit a padlock. close the circuit-breaker. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 251/293...
Page 252 ➭ Switch the right-hand three-position ➭ Remove the operating lever (the disconnector to OPEN position. interrogation lever and the control gate return to their initial position). 252/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 253: Operating Bus Sectionalizer Panels With Two Three-Position Disconnectors And With 900 Mm Panel Width
Remove the operating lever (the interrogation lever and the control ➭ Push the interrogation lever downwards and hold it. gate return to their initial position. The actuating opening closes). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 253/293...
Page 254 Remove the operating lever (the interrogation lever and the control ➭ To couple the busbars, close the circuit-breaker. gate return to their initial position. The actuating opening closes). 254/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 255 Switch the right-hand three-position disconnector to OPEN position ➭ Remove the operating lever (the interrogation lever and the control (insert the operating lever and turn 180° counter-clockwise). gate return to their initial position). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 255/293...
Page 256 Switch the right-hand three-position disconnector to READY-TO- interrogation lever locks in lower position. The right-hand actuating EARTH position (insert the operating lever and turn 180° clockwise). opening for the READY-TO-EARTH function opens). 256/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 257 The right-hand actuating EARTH to OPEN position (insert the operating lever and turn 180° opening for the READY-TO-EARTH function opens). counter-clockwise). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 257/293...
Page 258 Switch the right-hand three-position disconnector to CLOSED position interrogation lever locks in lower position. The right-hand actuating (insert the operating lever and turn 180° clockwise). opening for the DISCONNECTING function opens). 258/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 259 Remove the operating lever (the interrogation lever and the control ➭ To earth the right-hand busbar system, close the circuit-breaker. gate return to their initial position). ➭ Fit a padlock. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 259/293...
Page 260 ➭ Remove the operating lever (the interrogation lever and the control ➭ Push the interrogation lever downwards again and hold it. gate return to their initial position). 260/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 261: 26.10 Operating The Circuit-Breaker Panel With Busbar Earthing Switch
To earth the feeder, close the circuit- disconnector to READY-TO-EARTH position interrogation lever and the control gate breaker. (insert the operating lever and turn 90° return to their initial position). clockwise). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 261/293...
Page 262 READY-TO-EARTH to interrogation lever and the control gate again and hold it. OPEN position (insert the operating lever return to their initial position). and turn 90° counter-clockwise). 262/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 263 (the interrogation lever locks in disconnector to OPEN position (insert the lower position. The actuating opening for operating lever and turn 90° counter- the DISCONNECTING function opens). clockwise). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 263/293...
Page 264 READY-TO-EARTH to gate returns to its initial position). OPEN position (insert the operating lever and turn 90° counter-clockwise). The feeder remains earthed through the left-hand three-position disconnector. 264/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 265 Remove the operating lever (the disconnector from READY-TO-EARTH to OPEN interrogation lever and the control gate position (insert the operating lever and turn return to their initial position). 90° counter-clockwise). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 265/293...
Page 266: Cable Testing
Preconditions • Circuit-breaker in OPEN position. • Three-position switch in OPEN position. • Voltage transformer disconnector in EARTHED position (see page 212, "Operating the feeder voltage transformer"). 266/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 267 ➭ Perform voltage test. Perform the test according to the recommendations of the cable manufacturers or the customers' specifications. ➭ Proceed in reverse order to return to the initial situation. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 267/293...
Page 268: Service Information
Always observe the Five Safety Rules: ➭ Isolate. ➭ Secure against reclosing. ➭ Verify safe isolation from supply. ➭ Earth and short-circuit. ➭ Cover or barrier adjacent live parts. 268/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 269 ➭ Undo the bolted joint ② . Store the components carefully. ➭ Carefully remove the interlocking from the operating mechanism. Store the interlocking protected against dirt. ✔ The operating mechanism is ready to maintenance. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 269/293...
Page 270 Apply grease to the closing and opening Isoflex Topas L32 latch. ② Apply grease to the curve contour. Isoflex Topas L32 ③ Oil the bearing for the deflection lever. Shell Tellus Oil S2M32 270/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 271 Oil the contact surfaces between second/ Shell Tellus Oil S2M32 third release and bolt connections. ① Apply grease to the plunger at the Isoflex Topas L32 operating solenoid. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 271/293...
Page 272 Isoflex Topas L32 contact pressure spring. ① Oil the stud connection. Shell Tellus Oil S2M32 ② Apply grease to the bearing of the Isoflex Topas L32 contact pressure spring. 272/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 273 ➭ Refit the front cover of the panel. ➭ Test proper functioning of the interlock according to the following table. All control elements must be easy to operate. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 273/293...
Page 274 • Circuit-breaker can be operated. ➭ Put the switchgear panel into operation according to the installation and operating instructions. ✔ The maintenance of the operating mechanism is completed. 274/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 275: Checks And Maintenance Work In Case Of Special Operating Conditions
If the switchgear is used in abnormally unfavorable indoor conditions beyond the normal operating conditions (e.g. frequent heavy condensation, dust-ridden air, etc.) it is recommended to perform a visual inspection of the NXPLUS C switchgear at regular intervals. DANGER Hazardous voltage.
Page 276: Visual Check At The Operating Mechanisms And The Three-Position Switches
• Disconnector panel (panel width 600 mm) • Ring-main panel (panel width 600 mm) • Vacuum contactor panel (panel width 600 mm) • Metering panel (panel width 600 mm) 276/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 277 ➭ Check smooth operation of tripping rocker ② , lubricate if necessary. ➭ Check whether the auxiliary switch ① (option) reacts when the tripping rocker is lifted (clicking noise). 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 277/293...
Page 278: Visual Check Of Slow Motion Mechanism
➭ Check smooth operation of the interrogation lever ① . ➭ Check firm seating of all terminal connections ② . ➭ Check smooth operation of the control gate ③ . Fig. 184: Slow motion mechanism 278/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 279: Visual Check Of Spring-Operated/Stored-Energy Mechanism
➭ Check smooth operation of the control gate ④ . Fig. 187: Spring-operated/stored-energy mechanism Cable compartment ➭ Check functionality and smooth operation of the cable compartment interlock ① . interlock Fig. 188: Cable compartment interlock 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 279/293...
Page 280 ➭ Check whether the auxiliary switch ① (option) reacts when the tripping rocker is lifted (clicking noise). ➭ Switch the spring-operated/stored-energy mechanism to CLOSED position. ➭ Pull the tripping rocker ② up manually. ✔ The spring-operated/stored-energy mechanism trips. 280/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 281: Visual Check Of Circuit-Breaker Operating Mechanism
➭ Switch the spring-operated/stored-energy mechanism to OPEN position (see operating and installation Instructions). ✔ The switch-disconnector indicator shows the OPEN position again. 29.5 Visual check of circuit-breaker operating mechanism Fig. 190: Circuit-breaker operating mechanism 3AH55 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 281/293...
Page 282: Visual Check Of Vacuum Contactor Operating Mechanism
➭ Do not remove the cover ① ➭ In case of a functional failure of the vacuum contactor operating mechanism, please contact the Siemens Service Hotline. Fig. 192: Vacuum contactor operating mechanism 282/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 283: Cleaning, Greasing And Lubricating The Operating Mechanisms
➭ Operate the operating mechanism of the circuit-breaker several times mechanically by hand for test. ➭ Operate the operating mechanism of the vacuum contactor electrically 5 times for test. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 283/293...
Page 284: Permissible Lubricants
• Precise designation of the device or component, if applicable on the basis of the information and illustrations in the associated instructions, a drawing, sketch or circuit diagram 284/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 285: Annex
③ LED status indicator ⑧ Lower module plug -X1.2 ④ Serial number in clear text ⑨ Lower module plug -X1.1 ⑤ Identification of connections of lower plugs 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 285/293...
Page 286: Technical Data
(disconnector CLOSED / disconnector OPEN / earthing switch CLOSED / earthing switch OPEN) for more than 5 minutes, although existing interlocking conditions prevent the execution of this command. 286/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 287: Terminal Assignment Of Motor Control Unit
Depending on the panel type and the necessary sense of rotation of the motor, the assignment of the sense of rotation of the motor can vary. 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 287/293...
Page 288: Siemens Service Hotline
- +55 11 4585 8040 - [email protected] - Local working hours • Customer Support India (for Indian market only) - +91 1 800 419 7477 - [email protected] - Local working hours 288/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 289: Index
Floor, load-bearing capacity ..........82 Circuit-breaker, closing ..........190 Forced sequence circuit ..........219 Circuit-breaker, design............ 24 Forced sequence circuit 600 mm ........218 Circuit-breaker, locking device ........189 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 289/293...
Page 290 ..............74 Ready-for-service indicator ........52, 189 Locking devices............... 53 Ready-for-service indicator, checking ......105 Low-voltage compartment, craning....... 104 Recycling ................ 80 Low-voltage compartment, installation ......133 290/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 291 Voltage transformer, conformity ........30 Test operation .............. 179 Voltage transformer, installation........127 Test operation, circuit-breaker ........191 Test operation, faults ............ 182 Water drops, vertically falling ........171 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 291/293...
Page 292 WEGA ................207 Work-in-progress earthing..........201 Wooden pallets, removing ..........101 292/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9...
Page 293 Imprint Siemens AG Energy Management Medium Voltage & Systems Switchgear Factory Frankfurt Carl-Benz-Str. 22 D-60386 Frankfurt © Siemens AG 2018 802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11 293/293...

Siemens NXPLUS C Installation And Operating Instructions Manual

1 Signal Terms and Definitions

2 General Instructions

3 Security

4 Due Application

5 Qualified Personnel

6 Features

7 Panel Types

8 Examples for Panel Versions

9 Components

10 Technical Data

11 End of Life

12 Constructional Stipulations

13 Before Installation

14 Unloading and Erecting the Switchgear

15 Assembling the Switchgear

16 Electrical Connections

17 Installation of Degree of Protection Versions IP31D, IP32D and IP34D

18 Commissioning

19 Control Elements and Indicators

20 Operating the Circuit-Breaker

21 Operating the Three-Position Switch

22 Work-In-Progress Earthing

23 Verification of Safe Isolation from Supply

24 Replacing HV HRC Fuse-Links

25 Operating the Feeder Voltage Transformer

26 Short Instructions

27 Cable Testing

28 Maintenance

29 Checks and Maintenance Work in Case of Special Operating Conditions

30 Permissible Lubricants

31 Extending the Switchgear or Replacing Panels and Components

32 Mcu-Mh

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Summary of Contents for Siemens NXPLUS C