Fault protection system for power supplies that use ferro-resona

Details Fault protection system for power supplies that use ferro-resona Fault protection system for power supplies that use ferro-resona

1983-02-01

1984-08-14

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

323248, 361 18, 363 56, 363 75, H02H 308

Patent

active

044660413

ABSTRACT:
A fault detection system for use in power supply systems using ferro-resonant transformers is presented. Current sensing means are used to sense the current flowing in the ferro-resonant circuit associated with operation of the ferro-resonant transformer. A fault detection circuit, powered by its own power supply connected to the primary source of power, monitors the sensed current and signals any significant change therein. A fault condition in any of the secondary circuits of the transformer causes the ferro-resonant current to change, and upon sensing this change, the fault detection circuit disconnects the primary of the transformer from the source of power.

REFERENCES:
patent: 2987653 (1961-06-01), Propis
patent: 3209238 (1965-09-01), Mierendorf et al.
patent: 3532934 (1970-10-01), Ballman
patent: 3733519 (1973-05-01), Griffey
patent: 3911352 (1975-10-01), Slacks
patent: 3946301 (1976-03-01), Love

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