Fault detection indication system

Details Fault detection indication system Fault detection indication system

1975-07-31

1976-12-21

Caldwell, John W.

Communications: electrical

Systems

Call station

340256, G08B 2100

Patent

active

039991750

ABSTRACT:
A fault detection and indication system for electrically energized apparatus. The system connects to a number of sensors which actuate series switches in a power supply control circuit for the apparatus. If any switch contacts open, the control circuit deenergizes the apparatus. The fault detection and indication system connects to these switches and displays the status of the switches by means of first and second indicator lights.

REFERENCES:
patent: 2719966 (1955-10-01), Schurr

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