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Title:
CONDUCTOR MONITOR FOR POWER RECEIVING AND DISTRIBUTING EQUIPMENT
Document Type and Number:
Japanese Patent JP2009254104
Kind Code:
A
Abstract:

To provide a conductor monitor for a power receiving and distributing facility capable of efficiently monitoring individual bus-bars by automatically setting a thermal model of the bus-bar.

The conductor monitor for the power receiving and distributing facility includes: a bus-bar surface temperature measuring means 11 installed on the power receiving and distributing facility; an ambient air temperature measuring means 12; a bus-bar current value measuring means 13; an arithmetic unit 20; and a memory device 30. After the bus-bar temperature, a current value and the ambient air temperature in a normal state of the power receiving and distributing facility are measured to calculate reference parameters r, r specifying the thermal model of the bus bar, the bus-bar temperature, the current value and the ambient air temperature during operation of the power receiving and distributing facility are measured to calculate operation parameters x, x specifying the thermal model of the bus-bar, and the abnormality determination of the bus bars is performed by comparison between the operation parameters x, x and the reference parameters r, r.


Inventors:
HORI JUNJI
SHINDOI MASARU
MAKITA AKIRA
HIRAI TAKASHI
YOSHIDA TADAHIRO
Application Number:
JP2008098163A
Publication Date:
October 29, 2009
Filing Date:
April 04, 2008
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02B13/065; H02B3/00; H02H5/00; H02H7/22; H02G5/06; H02G5/08
Domestic Patent References:
JPH09289731A1997-11-04
JPH10185980A1998-07-14
Foreign References:
WO2006136044A12006-12-28
Attorney, Agent or Firm:
Takuji Yamada
Mitsuo Tanaka
Mikio Takeuchi