Motor protectorThe operating steps and processes of the phase-off test are basically the same as those of the overcurrent test, and the phase is cut off during the operation of the motor or before it runs.

1. Supply rated power to the protective device and check whether the display and indication of the protective device are normal.

(ii) The setting current of the protection device is set to the rated voltage of the motor.

(3) Run the motor to check whether it can run within the required time.

(IV) After the motor is running, whether the motor is in full load or overload operation, it is necessary to check the actual operating current of the motor. For protective devices without current display, a clamp-type ammeter can be used to accurately measure the actual operating current of the motor.

It has protection devices with over-voltage protection, under-voltage protection, power failure protection, under-current protection, and other protection functions. At the same time, simple experiments can be carried out on site.

In short, areas with regulations can conduct on-site inspection tests on the key and other functions of the protective device according to any instructions. On-site inspection of motor protectors is a practical and feasible method, and it is very effective for the initial installation test or external inspection of the protective device.

Ainuo Electronic Technology produces thermal protection, temperature control switches, PTC heaters, motor protectors, temperature sensors, etc. Welcome to buy.