Title:
THYRISTOR LATCHING CURRENT AUTOMATIC DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/000771
Kind Code:
A1
Abstract:
A thyristor latching current automatic detection device, comprising a buck chopping circuit, and a thyristor wiring circuit. The buck chopping circuit comprises a power supply (Vin), an auxiliary power supply (Vcc), a PWM controller, a signal amplification circuit, an insulated gate bipolar transistor (IGBT), a diode (D), and an inductor (L); and the thyristor wiring circuit comprises a thyristor (T), and a gate driving power supply (B) , a resistor (R p), a current relay (KA) and an ampere meter (A) thereof. According to the automatic detection device, the testing current can be improved by a smaller step length, and the device can automatically stop adjusting the current and maintain the current value when the thyristor latching current is reached.
Inventors:
LIANG NING (CN)
GUO JIANBAO (CN)
TANG JINKUN (CN)
PENG MAOLAN (CN)
GUO JIANBAO (CN)
TANG JINKUN (CN)
PENG MAOLAN (CN)
Application Number:
PCT/CN2016/111519
Publication Date:
January 04, 2018
Filing Date:
December 22, 2016
Export Citation:
Assignee:
MAINTENANCE & TEST CENTRE CSG EHV POWER TRANS COMPANY (CN)
International Classes:
G01R31/26; G01R19/00
Foreign References:
| CN202453459U | 2012-09-26 | |||
| CN101672887A | 2010-03-17 | |||
| JPS58189566A | 1983-11-05 | |||
| KR101373165B1 | 2014-03-11 |
Attorney, Agent or Firm:
GUANGZHOU KEYUE I.P. LAW OFFICE (CN)
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