Fault recording system for an electric power trip unit

Details Fault recording system for an electric power trip unit Fault recording system for an electric power trip unit

1993-06-08

1994-08-02

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

361 96, 361 65, H02N 308

Patent

active

053351355

ABSTRACT:
A low voltage electric power monitoring and circuit breaker system includes two processors. The first processor activates the circuit breaker when an overcurrent condition is detected and the second processor monitors the current sensed by the first processor and logs overcurrent values which arm the breaker as well as overcurrent values existing at the time the breaker is tripped.

REFERENCES:
patent: 4470092 (1984-09-01), Lombardi
patent: 4689712 (1987-08-01), Demeyer
patent: 4710845 (1987-12-01), Demeyer
patent: 4811154 (1989-03-01), Trenkler et al.
patent: 4870351 (1989-09-01), Milkovic
patent: 4996646 (1991-02-01), Farrington
patent: 5031178 (1991-07-01), Hartman

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