Density sensor for monitoring the rate of leakage from a switchg

Details Density sensor for monitoring the rate of leakage from a switchg Density sensor for monitoring the rate of leakage from a switchg

1998-10-22

2000-10-03

Larkin, Daniel S.

Measuring and testing

With fluid pressure

Leakage

73 2328, 73 2329, 73 3001, 73 3002, 73 3004, 340605, 340632, 340638, 374142, 374143, G01M 332, G01L 1904, H02B 13025, G08B 2100

Patent

active

061256927

ABSTRACT:
A density sensor for monitoring a rate of leakage from the case of electrical switchgear filled with dielectric gas under pressure, the sensor comprising a fixing support mounted from the outside in the thickness of the case and communicating with the dielectric gas. A radiator is placed around the fixing support of the density sensor, thereby enabling a measurement artifact that is due to the exposure of the case and of the sensor to solar radiation to be transformed in such a manner that any risk of untimely crossing of a low density threshold is eliminated.

REFERENCES:
patent: 3077527 (1963-02-01), Goldbach et al.
patent: 3934454 (1976-01-01), Simo
patent: 4206630 (1980-06-01), Powers
patent: 5388451 (1995-02-01), Stendin et al.
patent: 5421190 (1995-06-01), Brandle et al.
patent: 5502435 (1996-03-01), Ralston
patent: 5693873 (1997-12-01), Thuries et al.
patent: 5889467 (1999-03-01), Marmonier et al.

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