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Patent Searching and Data


Title:
ELECTRICAL SYSTEM WITH ON-LINE SAMPLING VERIFICATION FUNCTION AND VERIFICATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/043038
Kind Code:
A1
Abstract:
Provided in the present application are an electrical system with an on-line sampling verification function and a verification method thereof, being used for high-voltage and medium-voltage electrical apparatuses, and the system comprises an electrical apparatus, a gas density relay, a gas density detection sensor, a temperature adjusting mechanism, an on-line verification contact signal sampling unit, and an intelligent control unit. Temperature rise and fall of a temperature compensation element of the gas density relay are adjusted by means of the temperature adjusting mechanism, such that the gas density relay of the electrical apparatus generates a contact action, the contact action is transmitted to the intelligent control unit by means of the on-line verification contact signal sampling unit, the intelligent control unit detects an alarm and/or locking contact signal action value and/or a return value according to a density value during the contact action, and the verification work of the gas density relay can be completed without the need for maintenance personnel to go to the site, such that the reliability of a power grid is greatly improved, the working efficiency is improved, the operation and maintenance costs are reduced, and meanwhile, mutual self-verification between the gas density relay and the gas density detection sensor is realized so as to result in the maintenance-free effect.

Inventors:
JIN HAIYONG (CN)
XIA TIEXIN (CN)
HUANG XIAOBENG (CN)
GUO ZHENGCAO (CN)
CHANG MIN (CN)
WANG LELE (CN)
Application Number:
PCT/CN2020/111250
Publication Date:
March 11, 2021
Filing Date:
August 26, 2020
Export Citation:
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Assignee:
SHANGHAI ROYE ELECTRIC CO LTD (CN)
International Classes:
G01N9/00; H02B13/065; G01R31/327; H01H35/26
Foreign References:
CN110535058A2019-12-03
CN210720654U2020-06-09
CN207779463U2018-08-28
CN101937060A2011-01-05
CN203481694U2014-03-12
CN102136689A2011-07-27
CN105932590A2016-09-07
CN204230151U2015-03-25
US5388451A1995-02-14
CN201910830196A2019-09-04
Attorney, Agent or Firm:
SHANGHAI IPOWER LAW FIRM (CN)
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