Electricity: electrical systems and devices – Safety and protection of systems and devices – Transformer protection
Patent
1989-01-17
1990-12-25
Jennings, Derek S.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Transformer protection
361 35, 361 59, H02H 704
Patent
active
049807900
ABSTRACT:
The reset circuit of a fault indicator is coupled to a transformer secondary winding by a cable having an elongated conductor and a resistance close to the secondary winding. The resistance is capable of withstanding a minimum transient impulse of 10 kv.
REFERENCES:
patent: 3715742 (1973-02-01), Schweitzer, Jr.
patent: 3870928 (1975-03-01), Allen
patent: 4288743 (1981-09-01), Schweitzer
Jennings Derek S.
Sigma Instruments Inc.
Stanger Leo
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