Title:
RAPID MECHANICAL SWITCH TEST SYSTEM AND METHOD OF HIGH-VOLTAGE DIRECT-CURRENT CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2022/110963
Kind Code:
A1
Abstract:
A rapid mechanical switch (17) test system and method of a high-voltage direct-current circuit breaker. The system comprises: a plurality of rapid mechanical switches (17) to be tested which are connected in series, at least one position sensor (9, 10, 11) provided in the rapid mechanical switches (17) to be tested, an impulse voltage generation device (19), a voltage measurement device (23), and a computer device (21). The computer device (21) can send a switching-off instruction; when the rapid mechanical switches (17) to be tested reach a preset switching-off distance, a discharging instruction is sent to the impulse voltage generation device (19); and after the impulse voltage generation device (19) finishes discharging, the voltage endurance capability of the rapid mechanical switches (17) to be tested is determined according to movement information, in a switching-off process, of the rapid mechanical switches (17) to be tested, an impulse voltage generated by the impulse voltage generation device (19), and a voltage change, in the switching-off process, of the rapid mechanical switches (17) to be tested. Therefore, the accuracy of a dynamic voltage balancing performance test of rapid mechanical switches (17) of a main branch (22) of the high-voltage direct-current circuit breaker is improved.
Inventors:
QIN YIFAN (CN)
XU DANGGUO (CN)
LONG KAIHUA (CN)
NING LINRU (CN)
PENG ZHAOWEI (CN)
CAI WEI (CN)
ZHAO YUAN (CN)
ZHANG JINGLAN (CN)
LU YI (CN)
XIE LIFANG (CN)
YANG DAWEI (CN)
YANG MINXIANG (CN)
NIU ZHENG (CN)
LI ZHIGANG (CN)
LI DAWEI (CN)
CUI HEPING (CN)
WU GANG (CN)
XU DANGGUO (CN)
LONG KAIHUA (CN)
NING LINRU (CN)
PENG ZHAOWEI (CN)
CAI WEI (CN)
ZHAO YUAN (CN)
ZHANG JINGLAN (CN)
LU YI (CN)
XIE LIFANG (CN)
YANG DAWEI (CN)
YANG MINXIANG (CN)
NIU ZHENG (CN)
LI ZHIGANG (CN)
LI DAWEI (CN)
CUI HEPING (CN)
WU GANG (CN)
Application Number:
PCT/CN2021/117033
Publication Date:
June 02, 2022
Filing Date:
September 07, 2021
Export Citation:
Assignee:
STATE GRID JIBEI ELECTRIC POWER RES INSTITUTE (CN)
STATE GRID CORP CHINA (CN)
NORTH CHINA ELECTRIC POWER RES INSTITUTE CO LTD (CN)
STATE GRID CORP CHINA (CN)
NORTH CHINA ELECTRIC POWER RES INSTITUTE CO LTD (CN)
International Classes:
H01H71/24; G01R31/327; H02M9/04; H03K3/57
Foreign References:
| CN213658926U | 2021-07-09 | |||
| CN112433150A | 2021-03-02 | |||
| CN109696622A | 2019-04-30 | |||
| CN101813751A | 2010-08-25 | |||
| CN105487001A | 2016-04-13 | |||
| CN109061450A | 2018-12-21 | |||
| CN109738175A | 2019-05-10 | |||
| JPS62261978A | 1987-11-14 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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