Method and apparatus for detecting foreign matters in gas sealed

Details Method and apparatus for detecting foreign matters in gas sealed Method and apparatus for detecting foreign matters in gas sealed

1979-01-02

1980-11-04

Ciarlante, Anthony V.

Measuring and testing

Vibration

Loose object detection

G01N 2904

Patent

active

042312582

ABSTRACT:
In a method for detecting foreign matters present in gas sealed electrical apparatus including a tank at the ground potential and containing an insulating gas and a high voltage live part disposed in the tank, a voltage is applied to the high voltage live part causing generation of ultrasonic waves and the ultrasonic waves propagated through the tank is sensed by a sensing element mounted on the tank.

REFERENCES:
patent: 3505597 (1970-04-01), Cronin et al.
patent: 3612992 (1971-10-01), Cronin
patent: 3622872 (1971-11-01), Boaz
patent: 4158169 (1979-06-01), Harrold et al.

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