Transient voltage surge suppressor and line short monitor

Details Transient voltage surge suppressor and line short monitor Transient voltage surge suppressor and line short monitor

1986-05-20

1988-04-26

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361111, H02H 320

Patent

active

047408596

ABSTRACT:
A transient voltage surge suppressor and short circuit monitor unit in an alternating current transmission system includes a metallic case or casing into which lead lines connected to each of the power lines and to the neutral lines are introduced. The metallic case encompasses a series-connected varistor and fuse pair connected between each lead from an incoming alternating current power line and the lead from the neutral line. A series-connected neon lamp and limiting resistor pair inside of the case are connected across each varistor to be normally energized to give visual indication of the effectiveness and readiness of the suppressor to pass voltage surges above a predetermined maximum voltage to neutral, and to give visual indication that there is no short circuit between the power lines and the neutral line.

REFERENCES:
patent: 3456572 (1970-12-01), Specht et al.
patent: 3693053 (1972-09-01), Anderson
patent: 3840781 (1974-10-01), Brown
patent: 3894274 (1975-07-01), Rosenberry, Jr.
patent: 4023071 (1977-05-01), Fussell
patent: 4068279 (1978-01-01), Byrnes
patent: 4089032 (1978-05-01), Dell Orfano
patent: 4152743 (1979-05-01), Comstock
patent: 4168514 (1979-09-01), Howell
patent: 4191985 (1980-03-01), Phillips, Jr.

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