Related Manuals for Emerson AVTRON LOADBANK LPH400
Summary of Contents for Emerson AVTRON LOADBANK LPH400
- Page 1 AVTRON MODEL LPH400 RESISTIVE LOAD BANK Part Number LPH400D30693-1 © 2009 Avtron Loadbank, Inc. April 12, 2000 Cleveland, Ohio Rev. Aug. 18, 2009...
- Page 3 AVTRON LOADBANK, INC. Cleveland, Ohio AVTRON MODEL LPH400 RESISTIVE LOAD BANK Part Number LPH400D30693-1 TABLE OF CONTENTS Section Page SAFETY CONSIDERATIONS ................1-1 DESCRIPTION....................2-1 INSTALLATION ....................3-1 OPERATION ....................... 4-1 MAINTENANCE ....................5-1 REPLACEMENT PARTS LIST ................. 6-1 APPENDIX - Avtron Load Bank Troubleshooting Guide DRAWINGS SB2975 Outline Drawing...
- Page 4 AVTRON MODEL LPH400 RESISTIVE LOAD BANK Part Number LPH400D30693-1 SECTION I SAFETY CONSIDERATIONS Throughout this manual, you will find WARNING and CAUTION statements. Personal injury or death may occur to an operator using or repairing the equipment if a WARNING statement is ignored.
- Page 5 Avtron Model LPH400 • Resistive Load Bank Safety Considerations Part Number LPH400D30693-1 Do not bypass any fuses which have blown. Bypassing fuses can result in damage to the equipment and potentially hazardous conditions for the operator. If a fuse is blown, determine the cause of the blown fuse and correct the situation.
- Page 6 Avtron Model LPH400 • Resistive Load Bank Safety Considerations Part Number LPH400D30693-1 Always put a short or shunt across the current transformers (C.T.) when working on metering. Powering up an unshunted C.T. will destroy the C.T. with possible harm to personnel and metering.
- Page 7 Avtron Model LPH400 • Resistive Load Bank Description Part Number LPH400D30693-1 SECTION II DESCRIPTION The Model LPH400 Load Bank is a portable, primarily indoor, self-contained unit for electrically loading and testing generators. The Load Bank is rated at 400 kW at 240/480 volts. The available load steps are 100 kW, 100 kW, 100 kW, 50 kW, 25 kW, 10 kW, 10 kW, and 5 kW.
- Page 8 Avtron Model LPH400 • Resistive Load Bank Description Part Number LPH400D30693-1 GENERAL CONSTRUCTION (Refer to Outline Drawing SB2975.) The Control Panel is mounted in the Load Bank behind a sliding door. It is also sized for mounting into a 19-inch rack enclosure. The control panel contains all the switches required to operate the Load Bank.
- Page 9 Avtron Model LPH400 • Resistive Load Bank Installation Part Number LPH400D30693-1 SECTION III INSTALLATION BEFORE INSTALLATION Inspect the Load Bank for obvious damage such as broken wires, broken or dented panels, cracked ceramic insulators, or any other component breakage that may have occurred in shipment.
- Page 10 Avtron Model LPH400 • Resistive Load Bank Installation Part Number LPH400D30693-1 DO NOT STACK LOAD BANKS. Standard Load Bank design is suitable for operation between sea level and 3,000 ft. maximum altitude. AIRFLOW CONSIDERATIONS Even with an ample supply of cooling air, the Load Bank may overheat, if it is not properly installed.
- Page 11 Avtron Model LPH400 • Resistive Load Bank Installation Part Number LPH400D30693-1 The heated exhaust air stream can damage any temperature sensitive items if they are positioned within 25 ft. of exhaust air. Load Banks mounted into a channel, trough, hollow, well, or pit, or exhausting into a full wall or corner, require special considerations even if above conditions are met.
- Page 12 Avtron Model LPH400 • Resistive Load Bank Installation Part Number LPH400D30693-1 REMOTE FAN POWER OPERATION: When testing single phase system or systems or a frequency other than 60 Hz, the fan motor must be run from a separate source. First review schematic, set control panel selector switch to match external voltage applied, and then connect external power.
- Page 13 Avtron Model LPH400 • Resistive Load Bank Installation Part Number LPH400D30693-1 LOAD CONNECTION Connect a 240/480 volt, 3-phase source to the three fused bars labeled A, B and C, located in the customer connection access box. Cables to the Load Bank should be sized to handle the maximum rated load according to the National Electric Code.
- Page 14 Avtron Model LPH400 • Resistive Load Bank Installation Part Number LPH400D30693-1 GROUNDING A permanent ground should be connected to the Load Bank enclosure either by a grounded conduit or with a separate ground wire to prevent a potential above ground on the enclosure. No internal ground connections are made to any terminal on the Load Bank.
- Page 15 Avtron Model LPH400 • Resistive Load Bank Operation Part Number LPH400D30693-1 SECTION IV OPERATION PURPOSE AND USE OF CONTROLS BLOWER VOLTAGE SELECT Switch. This switch selects the appropriate voltge and source for the fan motor. Set to proper position BEFORE operation. LOAD VOLTAGE SELECT 240/208/416/480 Switch.
- Page 16 Avtron Model LPH400 • Resistive Load Bank Operation Part Number LPH400D30693-1 Digital Metering Package - Operation is performed through the front panel of the meter. See supplemental manual for complete operation instructions. MASTER LOAD ON/OFF Switch. This switch connects power to all load steps, thus allowing all set load steps to be actuated at the same time.
- Page 17 Avtron Model LPH400 • Resistive Load Bank Operation Part Number LPH400D30693-1 Place the LOAD VOLTAGE SELECT switch to the correct voltage to test the generator. Start the generator to be tested. After unit stabilizes at operating speed, temperature, voltage, and any other required condition for testing per manufacturer’s instructions, proceed to step 7.
- Page 18 Avtron Model LPH400 • Resistive Load Bank Operation Part Number LPH400D30693-1 With the MASTER LOAD switch in the OFF position, verify that the voltage displayed by the Digital Meter matches the position of the LOAD VOLTAGE Select switch. The resistive loading is selected by toggle switches, using any one or combination of toggle switches to make up a given load.
- Page 19 Avtron Model LPH400 • Resistive Load Bank Operation Part Number LPH400D30693-1 ************************************************************* C A U T I O N Never exceed the rated voltage. This will cause the Load Bank to overheat. Do not apply DC voltages, because the contactors do not have arc blowout magnets.
- Page 20 ESD PRECAUTIONARY GUIDELINES C A U T I O N Certain circuit card assemblies and their components, typically integrated circuits, may be damaged by seemingly undetectable electrostatic discharge (ESD). Care must be exercised during handling/repair of these items. Use electrostatic discharge precautionary procedures. The following guidelines are not necessarily all inclusive but rather serve as reminders for good shop practices for the handling/ repair of ESD sensitive circuit card assemblies and devices.
- Page 21 Avtron Model LPH400 • Resistive Load Bank Maintenance Part Number LPH400D30693-1 SECTION V MAINTENANCE Good maintenance procedures must be followed to provide long equipment life and to reduce the chance of electric shock, fires, and personal injury. Before servicing, review Section I, SAFETY CONSIDERATIONS, of this manual.
- Page 22 Avtron Model LPH400 • Resistive Load Bank Maintenance Part Number LPH400D30693-1 THREE MONTHS OR 500 HOURS Remove access panels and screens. Inspect the load resistors for mechanical breakdown which is demonstrated by excessive sagging of the elements. Replace with new resistor elements, support rods, and insulators as required.
- Page 23 Avtron Model LPH400 • Resistive Load Bank Maintenance Part Number LPH400D30693-1 ************************************************************* W A R N I N G The secondary of an unshorted or unshunted current transformer can generate several thousands of volts, possibly causing harm to personnel or damage to the C.T. and related instruments. Verify that no primary current is going through the C.T.
- Page 24 Avtron Model LPH400 • Resistive Load Bank Replacement Parts List Part Number LPH400D30693-1 SECTION VI REPLACEMENT PARTS LIST INTRODUCTION The parts list in this section contains the description, quantity required, and Avtron part numbers for each listed part. The list also includes schematic reference designators to facilitate troubleshooting.
- Page 25 Avtron Model LPH400 • Resistive Load Bank Replacement Parts List Part Number LPH400D30693-1 REPLACEMENT PARTS LIST SCHEMATIC AVTRON QTY/ DESCRIPTION REFERENCE UNIT AVTRON MODEL LPH400 LPH400- LOAD BANK D30693 .SCHEMATIC/WIRING DIAGRAM D30695 REF. .CONTROL PANEL D30755-2 ..SCHEMATIC/WIRING DIAGRAM D30695 REF. ..LAMP, INDICATOR, AMBER 329681 ..LAMP, INDICATOR, RED...
- Page 26 Avtron Model LPH400 • Resistive Load Bank Replacement Parts List Part Number LPH400D30693-1 SCHEMATIC AVTRON QTY/ DESCRIPTION REFERENCE UNIT .RESISTOR ASSEMBLY D27553-3 ..RELAY; 3P, 90A, 600V IND, 120A, 600V RES, 351885 110/120V, 50/60HZ, SC TERM ..RELAY, 3P, 50A, 110/120V, 50/60HZ COIL B14796 (PER AVTRON DWG) F10-12...
- Page 27 Avtron Model LPH400 • Resistive Load Bank Replacement Parts List Part Number LPH400D30693-1 SCHEMATIC AVTRON QTY/ DESCRIPTION REFERENCE UNIT .MOTOR, 3HP 341147 K21,K22 .RELAY, OVERLOAD*, 1.5-6 AMPS, CLASS 20 350573* K30,K31 .RELAY 351060 K23-K29 .RELAY 351650 .RELAY 351653 XK30,31 .SOCKET, RELAY 358280 .SWITCH, SENSING, RANGE 360772...
- Page 32 ASCO Power Technologies 6255 Halle Drive Cleveland, OH 44125 T (216) 573 7600 F (216) 573 5953 www.avtronloadbank.com Limited Warranty This Warranty is given ONLY to purchasers who buy for commercial or industrial use in the ordinary course of each purchaser's business.
- Page 33 ASCO Power Technologies 6255 Halle Drive Cleveland, OH 44125 T (216) 573 7600 F (216) 573 5953 www.avtronloadbank.com If replacement parts, components or products are shipped or caused to be shipped by ASCO prior to inspection of the product claimed to be defective, the replacement parts, components or products shall be invoiced in the full current price amount and shipped freight collect F.O.B.