Some ratings for knowledge:
Spring charge motor DC 220 V
Coils : Shunt Trip 110 V Dc
Closing Coil 110 V Dc
Corrective, Preventive and Predictive.
The governing IS for CBs:
- Routine test as per IEC 60065/IS 13118
- Testing alongwith panels to be tested as per IEC 60298/ IS 3427
Shown above is a 12 KV VCB, 1600 A, 25 kA
Interrupter Assembly:
- contacts
- arc interrupters
- arc chutes
Operating assembly
Operating rod
control panel
sealing system
Breaking Medium
- SF6
- Oil
- Vacuum and Air
Auxiliary Equipment : Alarm Scheme, Annunciator etc\
What checks we should carry out in a traction substation regarding CB and interruptor?
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