Curcuit breaker and circuit breaking apparatus

Details Curcuit breaker and circuit breaking apparatus Curcuit breaker and circuit breaking apparatus

1996-01-22

1997-07-22

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Arc suppression at switching point

361 13, 361 58, 361100, H02H 300

Patent

active

056509014

ABSTRACT:
A circuit breaker for a distribution system includes a non-self-extinction type semiconductor switch, a current limiting element connected in series to the semiconductor switch for suppressing a fault current. The semiconductor switch and the current limiting element constitute a series circuit. A mechanical type high-speed switch is connected in parallel to the series circuit of the semiconductor switch and the current limiting element. Upon occurrence of a fault in the distribution system, an electric current flowing through the distribution system is commutated to the series circuit from the mechanical type high-speed switch.

REFERENCES:
patent: 4740858 (1988-04-01), Yamaguchi et al.
"Design and High-Voltage and Operational testing Of TSR-and TSC-Valves For Static Compensators"; IPEC-Tokyo 1990; pp. 1009-1015.
"12KV 1KA Thyristor"; IPEC-Tokyo 1990; pp. 1201-1206.
"Power Protection 10-106/107"; Transactions of the 10-th National Convention of the Institute of Electrical Engineers of Japan; 1988.

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