Title:
PARTIAL DISCHARGE DETECTOR
Document Type and Number:
Japanese Patent JPH0549121
Kind Code:
A
Abstract:
PURPOSE: To prevent the malfunction of an alarm by the noise propagated from inside and outside a switch gear to a noise sensor.
CONSTITUTION: A noise sensor 7 is provided near the corona sensor 2 of a noise generation source, and a computer 9 is provided, to which the outputs of the amplifier 8 amplifying the output of this noise sensor 7 and the amplifier 3 amplifying the output of the corona sensor 2 are input and which subtracts the value of having multiplied the value inputted from the amplifier 8 by a coefficient from the value inputted from the amplifier 8.
Inventors:
WATABE TAKESHI
Application Number:
JP19913791A
Publication Date:
February 26, 1993
Filing Date:
August 08, 1991
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
H02B3/00; (IPC1-7): H02B3/00
Attorney, Agent or Firm:
Inomata Shoaki
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