Maintenance
Operating Mechanism Maintenance
10
1HSB515409-100 en rev2
4.1.1 Mechanical interlock
The mechanical interlock prevents a closing operation if the circuit-breaker is
already in the closed position or if the closing springs in the operating mechanism
are uncharged or not completely charged, which can occur if, for example, the
closing catch has been opened by hand or if a mechanical fault has occurred in the
interlocking mechanism.
•
Check the position of the interlocking arm in relation to the outside of the
interlocking disc. The interlocking arm should lie 2 mm above this.
•
Check that the closing circuit is closed when the arm rests on the outside of the
interlocking disc.
Figure 4-2. Interlocking mechanism
Item
1
Limit switch
2
Interlocking arm
3
Interlocking disc
4
Cam disc
5
Operating rod
1
4
3
2
5
B20019
2 mm
Содержание SF6 LTB 245E1 BLG 1002A
Страница 1: ...Product Manual 1HSB435416 2 en Rev 1 LTB 245E1 BLG 1002A 3 pole operation ...
Страница 63: ...ABB Switchgear SF6 Circuit Breaker Circuit breakers HPL and LTB 1HSB445410 100 en rev1 Check list assembly ...
Страница 68: ...ABB Switchgear SF6 Circuit Breaker Type LTB E 1HSB435409 100 enrev1 Operating and Maintenance Instructions ...
Страница 92: ...ABB Switchgear SF6 Circuit Breaker Circuit breakers HPL and LTB 1HSB445409 1 en0 Lubricants ...
Страница 94: ...Lubricants 1HSB445409 1 en0 i LIST OF CONTENTS 1 General 1 1 1 Safety instructions 1 2 Oil 3 3 Grease 5 ...
Страница 100: ...ABB Switchgear SF6 Circuit Breaker Operating Mechanism type BLG 1002A 1HSB515409 100 en rev2 Maintenance ...
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