Title:
TRANSFORMER MONITORING APPARATUS AND METHOD BASED ON NON-ELECTRIC-QUANTITY COMPREHENSIVE CHARACTERISTIC INFORMATION
Document Type and Number:
WIPO Patent Application WO/2020/224553
Kind Code:
A1
Abstract:
A transformer monitoring apparatus based on non-electric-quantity comprehensive characteristic information. The transformer monitoring apparatus comprises: a transient oil pressure characteristic quantity measurement module, a transient oil flow characteristic quantity measurement module, a transient acceleration characteristic quantity measurement module, a signal conditioning and collection module and a digital processing and analysis module, wherein the transient oil pressure characteristic quantity measurement module, the transient oil flow characteristic quantity measurement module and the transient acceleration characteristic quantity measurement module are all connected to the signal conditioning and collection module, and the signal conditioning and collection module is connected to the digital processing and analysis module. Further disclosed is a transformer monitoring method based on non electrical quantity comprehensive characteristic information. According to the apparatus and method, by means of comprehensively using a plurality of pieces of non-electric-quantity transient characteristic information inside a transformer, an action oil pressure value, an action oil flow value and an action acceleration value of a running state of the transformer are calculated, and by means of comparing with a preset non-electric-quantity start threshold, an alarm threshold and an early warning threshold, the real-time monitoring and reliability evaluation of each non-electric-quantity safety level inside the transformer are realized. The apparatus is independent of a power grid, and has the advantages of a simple structure, easy implementation, being reliable and accurate, etc.
Inventors:
YAN CHENGUANG (CN)
ZHU SHUYOU (CN)
XU CHE (CN)
LUO BAOFENG (CN)
ZHANG BAOHUI (CN)
GAO YAN (CN)
LIU HAO (CN)
ZHOU XIANWU (CN)
ZHU SHUYOU (CN)
XU CHE (CN)
LUO BAOFENG (CN)
ZHANG BAOHUI (CN)
GAO YAN (CN)
LIU HAO (CN)
ZHOU XIANWU (CN)
Application Number:
PCT/CN2020/088453
Publication Date:
November 12, 2020
Filing Date:
April 30, 2020
Export Citation:
Assignee:
BEIJING ZHONGRUIHE ELECTRICAL CO LTD (CN)
UNIV XI AN JIAOTONG (CN)
UNIV XI AN JIAOTONG (CN)
International Classes:
G01D21/02
Foreign References:
| CN110018328A | 2019-07-16 | |||
| CN110174137A | 2019-08-27 | |||
| CN209605874U | 2019-11-08 | |||
| CN110057443A | 2019-07-26 | |||
| CN104362736A | 2015-02-18 | |||
| CN105301281A | 2016-02-03 | |||
| CN207067271U | 2018-03-02 | |||
| CN208206204U | 2018-12-07 | |||
| CN106404078A | 2017-02-15 | |||
| CN104614018A | 2015-05-13 | |||
| CN203490023U | 2014-03-19 | |||
| CN208254542U | 2018-12-18 | |||
| CN202817913U | 2013-03-20 | |||
| CN206038058U | 2017-03-22 | |||
| MX2014015007A | 2016-05-20 | |||
| JPH08136597A | 1996-05-31 |
Attorney, Agent or Firm:
XI'AN TONG DA PATENT AGENCY CO., LTD. (CN)
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