Digital circuit interrupter shunt trip accessory module

Details Digital circuit interrupter shunt trip accessory module Digital circuit interrupter shunt trip accessory module

1997-02-21

1998-09-15

Medley, Sally C.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 54, H02H 300

Patent

active

058088482

ABSTRACT:
An integrated circuit breaker is provided with shunt trip capability along with automatic overcurrent protection through the circuit breaker trip unit and shunt trip module. The shunt trip module further provides auxiliary power to the trip unit and allows the trip unit microprocessor to report and record the shunt trip operation. The trip unit communicates with the circuit breaker operating mechanism to determine the ON-OFF status of the circuit breaker contacts.

REFERENCES:
patent: 4672501 (1987-06-01), Bilac et al.
patent: 4833563 (1989-05-01), Russell
patent: 4870531 (1989-09-01), Danek
patent: 5539605 (1996-07-01), Pollman et al.
patent: 5546265 (1996-08-01), Santos et al.
R.K. Seymour, et al., Circuit Breaker Contact Position Indicating Unit, Filed 3 Feb. 1997 S.N. 08/794,108.

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