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电力机车的主电路,是直接实现机车的牵引和电气制动运行的电路。它需将接触网的高压单相工频交流电,变换成为电压可调的直流电,供电给牵引电动机,以实现牵引;在运行需要时还应能实现电气制动。韶2机车的主电路图见图1。一、整流电路: 接触网的25KV_(-24)~(+16)%工频单相交流电,由受电弓1 SD(2 SD)、主断路器DL、
The main circuit of the electric locomotive is a circuit that directly achieves traction and electric brake operation of the locomotive. It needs to contact the network of high-voltage single-phase power frequency AC, into a voltage adjustable DC, power supply to the traction motor, in order to achieve traction; in operation should also be able to achieve electrical braking. Shao 2 locomotive main circuit shown in Figure 1. First, the rectifier circuit: contact network 25KV _ (- 24) ~ (+16)% single-frequency power frequency by the pantograph 1 SD (2 SD), the main circuit breaker DL,