The invention discloses a helicopter feeder short-circuit protection circuit, which comprises a starting generator, a generator controller, a main contactor, a starting contactor, a negative end mutual inductor and a positive end mutual inductor, and is characterized in that one end of a main contact of the main contactor is connected to a generator bus bar, and the other end of the main contact of the main contactor is connected with the starting generator; one end of a main contact of the starting contactor is connected to the generator bus bar, and the other end is connected with the starting generator; an auxiliary contact of the starting contactor has a normally-closed position and a normally-closed position, and the positive-end mutual inductor is connected in series with the normally-closed position of the auxiliary contact of the starting contactor. The generator controller has a feeder short-circuit protection function and a feeder short-circuit protection suppression function; the generator controller is connected with the negative-end mutual inductor and the positive-end mutual inductor; the negative end mutual inductor and the positive end mutual inductor jointly form a differential loop to provide feeder line short-circuit protection for the starter generator.

    本发明公开了一种直升机馈线短路保护电路,包括起动发电机、发电机控制器、主接触器、起动接触器、负端互感器以及正端互感器,其中:主接触器的主触点的一端连接至发电机汇流条,另一端连接起动发电机;起动接触器的主触点的一端连接至发电机汇流条,另一端连接起动发电机;起动接触器的辅助触点具有常闭和常闭两个位置,正端互感器与起动接触器的辅助触点常闭位置串联;发电机控制器具有馈线短路保护功能以及馈线短路保护抑制功能,发电机控制器与负端互感器以及正端互感器连接;负端互感器和正端互感器共同组成差动回路,为起动发电机提供馈线短路保护。


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    Title :

    Helicopter feeder short-circuit protection circuit


    Additional title:

    一种直升机馈线短路保护电路


    Contributors:
    MA JINGYU (author) / WANG ZHIYAN (author) / GUAN SIYANG (author) / XU YEFU (author) / WU WEI (author)

    Publication date :

    2024-02-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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