Maintenance
Operating Mechanism Maintenance
12
1HSB515409-100 en rev2
4.2 Preparations for maintenance
The following should be done before maintenance is started:
1.
Switch the circuit-breaker to the open position.
2.
Isolate and earth.
3.
Switch off the motor current.
4.
Perform a Close-Open operation so that the spring battery in the operating
mechanism is discharged.
5.
Switch off the control voltage and, if necessary, also the heater voltage.
Figure 4-5. Control panel
Item
1
Control panel
2
Control switch On/Off
3
Switch Local/Remote
4
Electric counter
5
Spring indicator
1
3
5
2
4
B20009
Summary of Contents for SF6 LTB 245E1 BLG 1002A
Page 1: ...Product Manual 1HSB435416 2 en Rev 1 LTB 245E1 BLG 1002A 3 pole operation ...
Page 92: ...ABB Switchgear SF6 Circuit Breaker Circuit breakers HPL and LTB 1HSB445409 1 en0 Lubricants ...
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