Single-motor start protection control system for vertical-shaft impact crusher

The utility model discloses a single-motor start protection control system for a vertical-shaft impact crusher. The single-motor start protection control system comprises power supply circuits of an electric motor M1 and an electric motor M2 and start and stop control circuits of the electric motor M1 and the electric motor M2. The single-motor start protection control system has the advantages that the electric motor M1 and the electric motor M2 are alternately started in a one-driving-two manner, so that the targets of reducing the loss of a transformer, compensating the capacity of a capacitor box, reducing capital investment, and avoiding faults caused by fixed starting of one motor for a long period of time are reached.