SS4改进型电力机车紧急制动按钮和预备回路电路的改进

Improvement of the emergency brake button and the reserve circuit of SS4 improved electric locomotive

针对SS4改进型电力机车紧急制动按钮和预备回路存在的问题,取消紧急制动按钮的跳主断功能,将电子柜预备回路中的卸载联锁改接到预备继电器回路中,使控制电路符合动力制动改造原则,便于司机操作。

Aiming at the problems existing in the emergency braking button and the reserve circuit of SS4 improved electric locomotive, the main breaking function of the emergency braking button is eliminated and the unloading interlock in the reserve circuit of electronic cabinet is connected into the reserve relay circuit, which make the control circuit in accordance with the brake modification principle and convenient for operation.