Density sensor for monitoring the rate of leakage from a switchgear case with improved reliability
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United States of America Patent
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Oct 3, 2000
Grant Date -
N/A
app pub date -
Oct 22, 1998
filing date -
Oct 23, 1997
priority date (Note) -
Expired
status (Latency Note)
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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.
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