The invention discloses a relay protection method of a switch neutral section passing device. One end of a switch A of the switch neutral section passing device is connected to a power supply arm A through a circuit breaker QF1, the other end of the switch A is connected to one end of a switch B, and the other end of the switch B is connected to a power supply arm B through a circuit breaker QF2.The other end of the switch A is further connected to a neutral region N. The neutral region N is further grounded through a resistance-capacitance device RC. Reliable protection of internal faults orcrossing faults of the switch neutral section passing device is realized through current protection, reliable protection of RC resistance-capacitance device capacitor faults is realized through voltage difference protection, and reliable protection of train neutral section passing faults is realized through voltage difference protection.

    本发明公开了开关过分相装置的继电保护方法。所述开关过分相装置的开关A的一端通过断路器QF1连接到供电臂A,开关A的另一端连接到开关B的一端,开关B的另一端通过断路器QF2连接到供电臂B;开关A的另一端还连接到中性区N,中性区N还通过阻容器件RC接地。本发明通过电流保护,实现对开关过分相装置内部故障或穿越故障的可靠保护,通过电压差保护实现对RC阻容器件电容器故障的可靠保护,通过电压差保护实现对列车闯分相故障的可靠保护。


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    Title :

    Relay protection method of switch neutral section passing device


    Additional title:

    一种开关过分相装置的继电保护方法


    Contributors:
    HAN ZHENGQING (author) / LIU SHUPING (author) / GAO SHIBIN (author) / SHEN RUI (author) / WU HAIBO (author) / HE ZONGLUN (author)

    Publication date :

    2020-11-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES



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