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Title:
OIL-IMMERSED POWER TRANSFORMER NON-ELECTRICITY PROTECTION FAULT RECORDING DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2020/224534
Kind Code:
A1
Abstract:
An oil-immersed power transformer non-electricity protection fault recording device and method, comprising a transient oil flow characteristic quantity measuring module, a transient oil pressure characteristic quantity measuring module, a non-electricity protection switch quantity input module, a signal conditioning and collecting module, and a digital core processing module. Both the transient oil flow characteristic quantity measuring module and the transient oil pressure characteristic quantity measuring module are connected to the signal conditioning and collecting module; both the non-electricity protection switch quantity input module and the signal conditioning and collecting module are connected to the digital core processing module. According to the present invention, the device is controlled on the basis of a recording principle and functional requirements, operations such as measurement, calculation, recording and communication of oil flow, oil pressure, and non-electricity protection action information of a measured transformer are completed, and non-electricity characteristics of the transformer under fault or disturbance conditions and a fault recording function of a protection device thereof are realized. The present invention has the advantages of being simple in structure, easy to implement, reliable and efficient and the like.

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Inventors:
YAN CHENGUANG (CN)
ZHU SHUYOU (CN)
WEI YUZHOU (CN)
LUO BAOFENG (CN)
ZHANG BAOHUI (CN)
GAO YAN (CN)
LIU HAO (CN)
ZHOU XIANWU (CN)
Application Number:
PCT/CN2020/088304
Publication Date:
November 12, 2020
Filing Date:
April 30, 2020
Export Citation:
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Assignee:
BEIJING ZHONGRUIHE ELECTRICAL CO LTD (CN)
UNIV XI AN JIAOTONG (CN)
International Classes:
H02J13/00; G01R31/00; H01F27/40
Foreign References:
CN110165778A2019-08-23
CN104614018A2015-05-13
CN103855685A2014-06-11
Other References:
ZHANG, CHAO: "Engineering Design and Application of Intelligent 220kV Substation", ENGINEERING TECHNOLOGY II, CHINA MASTER’S THESES FULL-TEXT DATABASE, no. 04, 15 April 2017 (2017-04-15), ISSN: 1674-0246, DOI: 20200604173303X
ZHANG, CHAO: "Engineering Design and Application of Intelligent 220kV Substation", ENGINEERING TECHNOLOGY II, CHINA MASTER’S THESES FULL-TEXT DATABASE, no. 04, 15 April 2017 (2017-04-15), ISSN: 1674-0246, DOI: 20200608101431X
Attorney, Agent or Firm:
XI'AN TONG DA PATENT AGENCY CO., LTD. (CN)
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