Apparatus and method for diagnosis of power appliances

Details Apparatus and method for diagnosis of power appliances Apparatus and method for diagnosis of power appliances

1990-05-16

1993-10-12

Harvey, Jack B.

Boots, shoes, and leggings

36455101, 324536, 324544, G01R 3108

Patent

active

052531805

ABSTRACT:
A power appliance diagnosis apparatus includes a plurality of detectors provided on outer surfaces of gas-insulated casings of a power appliance for detecting the state of an insulating function and/or a current conduction function of the power appliance, a switch for time-divisionally taking in detection signals of the plurality of detectors, a frequency analyzer for performing frequency analysis on the detection signals taken in by the switch, and a controller for performing switching control of the switch.

REFERENCES:
patent: 4882682 (1989-11-01), Takasuka et al.
patent: 4929903 (1990-05-01), Saigo et al.
patent: 5107447 (1992-04-01), Ozawa et al.
Miller et al, Measurement and Modeling of Switching Transients in Gas-Insulated Tramission Lines, 1987, (no month) pp. 456-460.

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