Title:
ELECTRICAL SYSTEM WITH ON-LINE SAMPLING VERIFICATION FUNCTION AND VERIFICATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/043040
Kind Code:
A1
Abstract:
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. The system comprises an electrical apparatus (8), a gas density relay (1), a gas density detection sensor, a valve (4), a pressure adjusting mechanism (5), an on-line verification contact signal sampling unit (6), and an intelligent control unit (7). Pressure rise and fall are adjusted by means of the pressure adjusting mechanism (5), such that the gas density relay (1) of the electrical apparatus (8) generates a contact action, the contact action is transmitted to the intelligent control unit (7) by means of the on-line verification contact signal sampling unit (6), the intelligent control unit (7) 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 (1) 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 (1) and the gas density detection sensor is realized so as to result in a maintenance-free effect.
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Inventors:
XIA TIEXIN (CN)
HE BING (CN)
CHANG MIN (CN)
GUO ZHENGCAO (CN)
LIAO HAIMING (CN)
JIN HAIYONG (CN)
WANG ENLIN (CN)
HE BING (CN)
CHANG MIN (CN)
GUO ZHENGCAO (CN)
LIAO HAIMING (CN)
JIN HAIYONG (CN)
WANG ENLIN (CN)
Application Number:
PCT/CN2020/111252
Publication Date:
March 11, 2021
Filing Date:
August 26, 2020
Export Citation:
Assignee:
SHANGHAI ROYE ELECTRIC CO LTD (CN)
International Classes:
G01R31/327; G01N9/00; H01H35/26
Foreign References:
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Attorney, Agent or Firm:
SHANGHAI IPOWER LAW FIRM (CN)
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