Supervisory apparatus for oil-filled electrical equipment

Details Supervisory apparatus for oil-filled electrical equipment Supervisory apparatus for oil-filled electrical equipment

1998-04-09

1999-09-07

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

340646, 340650, 361 36, 361 37, G08B 2100

Patent

active

059493437

ABSTRACT:
There is provided at least one pressure detector for detecting a change in pressure of an insulating medium, a vibration detector for detecting vibration of an oil-filled electric equipment, and a determination processor for determining, based on information detected by the pressure detector and the vibration detector, whether an internal short circuit has occurred in the oil-filled electrical equipment.

REFERENCES:
patent: 4215404 (1980-07-01), Bukhtiyarov et al.
patent: 4406169 (1983-09-01), Ikeuchi et al.
patent: 4752697 (1988-06-01), Lyons et al.
patent: 5684298 (1997-11-01), O'Connor et al.
patent: 5703295 (1997-12-01), Ishida et al.

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