Power line surge suppressor

Details Power line surge suppressor Power line surge suppressor

1988-09-20

1989-09-26

Jennings, Derek S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 56, 361111, 361118, H02H 320

Patent

active

048705284

ABSTRACT:
A surge suppressor comprises a first series circuit having a first inductance and a first alternating voltage limiter, including at least a first capacitance and a bidirectionally conductive rectifying circuit for charging the first capacitance, coupled between first and second input terminals for limiting surge currents and voltage excursions coupled to first and second load output terminals. The first alternating voltage limiter further comprises a sensing circuit for sensing at least one of the charging current supplied to and the voltage developed across the first capacitance. An auxiliary energy storage circuit and a normally open switching device responsive to the sensing circuit are provided for coupling the auxiliary energy storage circuit across the first capacitance during high energy surge conditions.

REFERENCES:
patent: 3793535 (1974-02-01), Chowdhuri
patent: 4068279 (1978-01-01), Byrnes
patent: 4463406 (1984-07-01), Sirel
patent: 4563720 (1986-01-01), Clark
patent: 4584622 (1986-04-01), Crosby et al.

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