Overcurrent detector

Details Overcurrent detector Overcurrent detector

1987-07-27

1989-04-04

Jennings, Derek S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 93, H02H 308, H02H 3093

Patent

active

048191256

ABSTRACT:
A circuit breaker has a phase selecting circuit for selecting one phase among plural phases, in which the largest current flows. After selecting the largest phase, the judgement whether an accidental overcurrent flows or not in executed by using only output signals from the selected largest phase.

REFERENCES:
patent: 4131929 (1978-03-01), Moran
patent: 4623967 (1986-11-01), Naimer
patent: 4689712 (1987-08-01), Demeyer
patent: 4695961 (1987-09-01), Arinobu

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