Lightning arrester monitor

Details Lightning arrester monitor Lightning arrester monitor

1988-12-14

1990-03-13

Jennings, Derek S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361131, 324537, H02H 904

Patent

active

049087290

ABSTRACT:
A lightning arrester monitor which consists of an oxygen gas sensor provided in a lightning arrester having a zinc-oxide-type element made of zinc oxide, the main component thereof, and other oxides added thereto, the oxygen gas sensor measures the oxygen concentration of the element which increases as degradation thereof goes on. The monitor makes it possible to assess degradation of the zinc-oxide-type element with ease, without requiring any complicated electrical circuit for detecting leakage current.

REFERENCES:
IEEE 82 SM 381-2; "Influence of Uniformity on Energy Absorption Capabilities of Zinc Oxide . . . "; A. Mizukoshi et al.
"New Sensor Handbook"; May 20, 1982.

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