Operating The Panel With Switch-Fuse Combination - Siemens 8DJH Installation And Operating Instructions Manual
Medium-voltage switchgear
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Also See for 8DJH:
- Installation and operating instructions manual (129 pages) ,
- Operator's manual (2 pages) ,
- Operator's manual (2 pages)
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9 | Operation
9.5 Operating the panel with switch-fuse combination
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4. Insert the operating lever and turn straight counter-clockwise as
far as it will go.
✓ The position indicator of the earthing switch shows the OPEN
position.
5. Remove the operating lever. The locking device returns to its
initial position.
6. Fit the padlock (optional) on the locking device at the desired
position [▶ Page 137, "Mechanical interlocking with padlock"].
✓ The feeder is de-earthed.
This chapter describes the manual operation of the following panel types:
▪ Panels with switch-fuse combination (panel types T and H)
▪ Panels with disconnector and HV fuses (panel type M(430))
The operations are exemplarily shown for a transformer feeder (panel type T).
Motor operating mechanism (option)
To perform the CLOSING and OPENING operations, the panels can be equipped with a motor
operating mechanism. The use of the motor operating mechanism is described in the circuit
documentation.
Manual switching operations are also possible with motor operating mechanism. If the locking
device is operated in order to perform a switching operation, electrical switching commands are
suppressed.
Charging the spring energy store with motor operating mechanism
If the spring-operated/stored-energy mechanism is equipped with a motor operating mechanism
(option), the operating spring is charged automatically after applying auxiliary voltage.
If the auxiliary power supply is interrupted while the motor is charging the operating spring,
the operating mechanism returns to the initial situation autonomously.
To repeat the switching operation, switch the auxiliary voltage on again.
Control board for switch-fuse combination (example: transformer feeder)
8DJH • Installation and Operating Instructions • Version 11 • 500-8384.9
INFORMATION
Ready-for-service indicator
1
ON pushbutton
2
Locking device
3
Padlock (option)
4
Actuating opening for earthing switch
5
T
Position indicator for earthing switch
6
Position indicator for switch-
7
disconnector
OFF pushbutton
8
Actuating opening for "spring charging"
9
"Spring charged" indicator
10
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