Method for monitoring a capacitor bushing, and monitoring system

Details Method for monitoring a capacitor bushing, and monitoring system Method for monitoring a capacitor bushing, and monitoring system

1997-11-24

2000-02-22

Regan, Maura

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

324536, G01R 2726

Patent

active

060284307

ABSTRACT:
A capacitor bushing with a tap for a reduced voltage between its capacitor inserts is monitored with the method. The reduced voltage is supplied to a detection device that monitors the reduced voltage for any change. A change and its time interval from a further change are determined, and an error signal corresponding to the frequency of the change in the reduced voltage is generated. The method may be performed with the disclosed monitoring system.

REFERENCES:
patent: 3810027 (1974-05-01), Cook
patent: 3882378 (1975-05-01), Foord
patent: 4305071 (1981-12-01), Bell
patent: 4346340 (1982-08-01), Hackett-Jones
patent: 4757263 (1988-07-01), Cummings, III
patent: 5371458 (1994-12-01), Heikkila
patent: 5682100 (1997-10-01), Rossi
patent: 5839092 (1998-11-01), Erger

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