Switchgear for a power station generator and a transformer with

Details Switchgear for a power station generator and a transformer with Switchgear for a power station generator and a transformer with

1998-11-23

2000-09-12

Ponomarenko, Nicholas

Electricity: single generator systems

With physical starting and/or stopping of the generator

Connecting and/or disconnecting generator and driving means

322 8, 361 20, 307149, H02P 902

Patent

active

061182575

ABSTRACT:
The switchgear comprises a circuit breaker having an open position for isolating a generator from the network, and a closed position for connecting the generator to the network, together with a disconnector having a fixed pole connected to the generator and a contact connected to the fixed pole and movable relative thereto to occupy, when the circuit breaker is open, a first position connecting the generator to a starter circuit and a second position connecting the generator to ground. The moving contact of the disconnector also possesses a third position in which it forms an equipotential appendix for the fixed pole when the circuit breaker is closed. The moving contact does not carry the steady electric current of the generator, thus making it possible advantageously to reduce its dimensions so that they are capable merely of withstanding transient electrical conditions when in the first and third positions.

REFERENCES:
patent: 4214289 (1980-07-01), Otsuku et al.
patent: 4360849 (1982-11-01), Harris
patent: 4612495 (1986-09-01), Yamauchi et al.
patent: 5559421 (1996-09-01), Miyakawa
patent: 5594350 (1997-01-01), Koizumi et al.
patent: 5604420 (1997-02-01), Nambu
patent: 5701089 (1997-12-01), Perkins

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