Electric gourds suddenly didn't turn, which is likely to happen during our use of electric gourds, and we also received similar consultation calls. Even though there are not our customers, our staff have made patient answers. In fact, there are four main reasons for the fact that electric gourds cannot operate. One of the reasons: First check whether the power fuse is burned. If one phase is broken, the motor starts with a single phase. The starting torque is zero. The motor cannot be rotated. Reason 2: Short -circuit, grounding, or disconnection of the stator winding. Winding ground when the winding is located at the floor of the floor. The wiring box should be opened for inspection. Not only does the motor check the motor during the disconnection, it should also check whether the control equipment wiring is correct. If the contact contact is poor, the line cannot be connected. The sandpaper is used to sharpen the touches of the contact of the contact device. At the same time, it is necessary to check the iron -hearting and disconnect. If there is a card resistance, the contactor is replaced if necessary. Reasons 3: Excessive load or failure of transmission machinery. Generally, electric gourd matching motor power is reasonable, and heavy objects cannot be overloaded. If the electric gourd cannot be rotated, the load is unloaded first. If the motor can start normally, it means that the transmission mechanism such as the speedbox is faulty. Clear the fault. Reason 4: The voltage of the power grid is too low. The startup torque is proportional to the square of the voltage. The accelerated torque cannot overcome the load power torque. If the operating speed is not available, the power grid voltage should be appropriately increased.