What are the faults of the distribution box?
Change the wiring method of the low-voltage capacitor group of the high- and low-voltage distribution box manufacturer from the pile head of the AC contactor to the installation position between the low-voltage water inlet line of the high- and low-voltage distribution box and the instrument. Prevent inaccurate measurement of the device when the capacitor circuit loses phase or is damaged during operation. Therefore, when selecting an AC contactor, products with insulation grade A or above should be selected, and the rated current of the main circuit contact must be greater than or equal to the load current of the controlled line.
In addition, the capacitor model should use a good series of products to ensure reliable quality and safe operation of the components. Choose energy-saving AC contactor products, and pay attention to the connection between the AC contactor coil voltage and the corresponding terminals of the selected residual current action protector, and pay attention to the correct load matching. The above is a brief analysis of how to reasonably improve the process of high and low voltage distribution boxes, which can also be understood from other different angles.
Common causes of distribution box failure include:
1. Failure caused by the influence of ambient temperature on low-voltage electrical appliances.
2. Failure caused by product quality.
3. Failure caused by improper selection of electrical appliances in high and low voltage distribution boxes.
