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Title:
LOW ENERGY-CONSUMING SERIES CURRENT TRANSFORMER FOR 1-1000 KV TRANSFORMER DETECT
Document Type and Number:
WIPO Patent Application WO/2009/000159
Kind Code:
A1
Abstract:
A low energy-consuming series current transformer for 1-1000 KV transformer detect, which is a core through typed current transformer, includes an iron core (1), a primary coil (2), a secondary coil (3). It uses the high pressure of 10-1000 KV series insulating cable as primary bus bar. The secondary coil (3) connects to the current coil of an electric meter. The secondary coil (3) connects in series to an ammeter (5) and a voltmeter (4) that in parallel connection. One end of the ammeter (5) and the voltmeter (4) is connected with an end of the secondary coil (3) through an on-off switch (7). Another end of the ammeter (5) and the voltmeter (4) is connected with another end of the secondary coil (3) through a lead. The transformer is simple in structure, consumes low energy, is safe and reliable, and convenient to use.

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Inventors:
HU CUIPEI (CN)
LIANG YAN (CN)
Application Number:
PCT/CN2008/001220
Publication Date:
December 31, 2008
Filing Date:
June 24, 2008
Export Citation:
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Assignee:
HU CUIPEI (CN)
LIANG YAN (CN)
International Classes:
G01R15/18; H01F38/30
Foreign References:
CN201051121Y2008-04-23
CN101196539A2008-06-11
CN2857176Y2007-01-10
CN2117614U1992-09-30
JPH11101824A1999-04-13
EP1059536A12000-12-13
Other References:
HU CUIPEI: "My Different View on Discussing the Electric Current Inductor in Teaching Materials", JOURNAL OF ELECTRICAL & ELECTRONIC ENGINEERING EDUCATION, vol. 22, no. 3, August 2007 (2007-08-01), pages 115 - 117
SHAO ZHONGHUA ET AL.: "Talk About Whether Produce High Pressure To A Current Transformer With Secondary Opening Circuit", ELECTROTECHNICAL JOURNAL, no. 8, August 2000 (2000-08-01), pages 48 - 49
Attorney, Agent or Firm:
TIDYTEND INTELLECTUAL PROPERTY LAW FIRM (Horizon International Tower No.6 Zhuchun Road, Haidian District, Beijing 8, CN)
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