Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Patent
1991-10-28
1994-06-21
Wieder, Kenneth A.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
324541, 324544, G01B 3108
Patent
active
053231171
ABSTRACT:
In an electric apparatus such as an electric power cable system, a high frequency pulse is induced on a conductive member such as a metal sheath, where partial discharge occurs in an insulation. The high frequency pulse is detected by means of a bypass lead wire, a metal foil electrode, a detecting coil, and the like provided on the electric apparatus without interrupting a live operation of the electric apparatus.
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Endoh Takeshi
Hagiya Mikio
Ikeda Chuki
Imai Tomoaki
Hitachi Cable Ltd.
Tobin Christopher
Wieder Kenneth A.
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