Frequency-dependent overvoltage protective device for high volta

Details Frequency-dependent overvoltage protective device for high volta Frequency-dependent overvoltage protective device for high volta

1988-05-20

1990-07-24

Wong, Peter S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 11, 361 58, 361111, 363 50, H02H 904

Patent

active

049438875

ABSTRACT:
An asymmetrical overvoltage protection circuit includes a series connection of varistors with a capacitance in parallel with only one of the varistors. The asymmetry may also involve a parallel connection of an inductance with the other of the varistors.

REFERENCES:
patent: 4563720 (1986-01-01), Clark
patent: 4584622 (1986-04-01), Crosby et al.
patent: 4587588 (1986-05-01), Goldstein
patent: 4739436 (1988-04-01), Stefani et al.
patent: 4760485 (1988-07-01), Ari et al.

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