Power controller reset during load starting

Details Power controller reset during load starting Power controller reset during load starting

1994-10-28

1995-10-03

DeBoer, Todd

Electricity: electrical systems and devices

Safety and protection of systems and devices

Automatic reclosing

361 28, 361 94, H02H 300

Patent

active

054557313

ABSTRACT:
A solid state power controller is automatically reset if an overload trip occurs during a start-up delay period. If an overload trip occurs during load starting, the SSPC remains tripped for a reset delay period, and thereafter the SSPC is automatically reset, thereby allowing the starting process to continue by heating a lamp filament, accelerating a motor, etc., without indicating a system fault to an operator. At the expiration of the start-up delay period, the SSPC no longer automatically resets in response to an overload condition.

REFERENCES:
patent: 4241372 (1980-12-01), Sears
patent: 4709160 (1987-11-01), Kinoshita
patent: 4740883 (1988-04-01), McCollum
patent: 4955069 (1990-09-01), Ionescu

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