Digital circuit interrupter with battery back-up facility

Details Digital circuit interrupter with battery back-up facility Digital circuit interrupter with battery back-up facility

1994-02-22

1996-01-16

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific circuit breaker or control structure

361 94, 361 97, H02H 308

Patent

active

054853435

ABSTRACT:
A digital circuit interrupter utilizing current transformers for operating power is provided with a re-chargeable battery to power-up the trip unit as well as to power the display after an overcurrent trip occurrence to enable an operator to determine both the magnitude as well as the cause of the overcurrent condition.

REFERENCES:
patent: 4428022 (1984-01-01), Engel et al.
patent: 4672501 (1987-06-01), Bilac et al.
patent: 4751606 (1988-06-01), Matsko et al.
patent: 4870531 (1989-09-01), Danek
patent: 5089928 (1992-02-01), Durivage et al.
patent: 5220479 (1993-06-01), Fraisse

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