Stable voltage is the basic guarantee for the normal operation of cold storage units. Unstable voltage and frequent power outages in abnormal power supply are core hidden dangers that are easy to be ignored but extremely harmful, directly affecting the operational safety of the unit, the stability of the refrigeration system, and the safety of goods storage.

         Unstable voltage is mainly manifested in high or low voltage, which will cause abnormal operation of core components such as unit motors and electric control cabinets, accelerate component aging and loss, reduce refrigeration efficiency, and at the same time cause failures of precision components such as PLC modules and sensors, increasing maintenance costs.

         Frequent power outages will cause the unit to shut down suddenly, which not only destroys the continuity of refrigeration, leads to fluctuations in cold storage temperature and affects the quality of stored goods, but also damages key components such as compressors and fans due to current impact generated by sudden start and stop, and even causes secondary hidden dangers such as refrigerant leakage.

         The superposition of unstable voltage and frequent power outages will greatly shorten the service life of equipment, increase the probability of fault shutdown, and cause economic losses. It is necessary to equip voltage stabilization equipment, improve power supply guarantee measures, avoid the risks of voltage fluctuation and frequent power outages, and ensure the continuous and stable operation of cold storage units.