H - Electricity – 02 – G
Patent
H - Electricity
02
G
317/24, 324/25
H02G 13/00 (2006.01) H02H 9/04 (2006.01)
Patent
CA 1282828
ABSTRACT OF THE DISCLOSURE A lightning arrester monitor consists of an oxygen gas sensor provided in a lightning arrester having a zinc-oxide-type element made of zinc oxide as the main component thereof, and other oxides added thereto, the oxygen gas sensor measuring the oxygen concentration of the element which increases with degradation thereof. 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.
588671
Kobayashi Masahiro
Minagawa Tadao
Ujita Katsu
Yoshioka Takeo
Marks & Clerk
Mitsubishi Denki Kabushiki Kaisha
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