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

2000-09-19

Scott, J. R.

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Multiple break

218 79, 218 80, 361605, 322100, H01H 3302, H02B 500, H02P 900

Patent

active

06121566&

ABSTRACT:
The switchgear comprises a circuit breaker connected between a generator and a transformer, together with a disconnector connected between the circuit breaker and the transformer, the disconnector having a fixed pole common to three positions: a first position and a second position respectively for connecting together or isolating the transformer and the circuit breaker when the circuit breaker is respectively closed or open; and a third position for grounding the fixed pole when the circuit breaker is open. The fixed pole of the disconnector is electrically connected to the transformer, thereby making it possible to interconnect or to isolate or to ground the tranformer while using only one disconnector included in the switchgear.

REFERENCES:
patent: 3745281 (1973-07-01), Yoshioka
patent: 4250535 (1981-02-01), Adolph et al.
patent: 5334927 (1994-08-01), Widenhorn
patent: 5796060 (1998-08-01), Fuchsle et al.

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