Fault anticipation apparatus for high voltage electrical...

Details Fault anticipation apparatus for high voltage electrical... Fault anticipation apparatus for high voltage electrical...

H - Electricity

02

H

324/47, 324/99

H02H 7/16 (2006.01) G01R 31/12 (2006.01) H02H 1/00 (2006.01) H02H 7/04 (2006.01) H02H 1/04 (2006.01)

Patent

CA 1173905

ABSTRACT OF THE DISCLOSURE In a system for continuously monitoring partial discharge in high voltage electrical equipment thereby to give advance warn- ing of impending breakdown of solid-insulated components, means are provided to distinguish electrical signals indicative of par- tial discharge from those resulting from noise or external tran- sients. Current pulses in the various partial discharge paths are detected, and by solid-state circuitry their relative polarities are compared and an appropriate signal is made according to the comparison.

396569

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