Method and apparatus for detecting abnormal conditions of switch

Details Method and apparatus for detecting abnormal conditions of switch Method and apparatus for detecting abnormal conditions of switch

1981-10-28

1983-08-30

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to force

7386254, G01D 938, G01L 522

Patent

active

044009810

ABSTRACT:
A method and apparatus for detecting an abnormal condition of a switch gear device including a switch gear, for instance a circuit breaker driven by an operating device. A device for detecting the operating force applied from the operating device to the circuit breaker is mounted between the operating device and the circuit breaker. Data is obtained from the detecting device, expanded in time for analysis, and compared with data obtained under a normal state to judge the presence or absence of an abnormal condition within the switch gear.

REFERENCES:
patent: 3033495 (1962-05-01), Sikora
patent: 3396516 (1968-08-01), Anderson
patent: 4058178 (1977-11-01), Shinohara et al.
patent: 4274438 (1981-06-01), LaCoste

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