The voltage deviation deviates from the rated voltage for a long time. This problem belongs to the category of fundamental wave reactive power, which is mainly related to the wire diameter, power supply distance, power flow distribution, voltage regulation mode, reactive power compensation capacity and other factors of power transmission. Undervoltage can cause the device to malfunction, such as overheating of the squirrel cage motor and release of the contactor attracting coil. Overvoltage can cause permanent (insulation) damage to a variety of electronic and electrical equipment.
Oil coolers are also called oil coolers. According to the principle of the refrigeration system, the liquid refrigerant with low temperature and low pressure exchanges heat with the surrounding water in the evaporator. The evaporator absorbs the heat of the oil and evaporates into a gaseous state with low temperature and low pressure. , The low-temperature and low-pressure gaseous refrigerant enters the compressor, is compressed by the compressor, is compressed into a high-temperature and high-pressure gaseous state, and then enters the condenser, where it exchanges heat with the indoor medium, and part of the heat in the high-temperature and high-pressure gaseous state is removed. The medium absorbs, the temperature of the medium rises, the refrigerant releases heat and turns into a high temperature and high pressure liquid state, and the condenser process temperature remains unchanged, and then enters the expansion valve for throttling. Throttling is a process of rapid cooling, and the refrigerant becomes a low temperature and low pressure liquid state. The latter refrigerant enters the evaporator for heat exchange and evaporation, thereby realizing the entire process of the refrigeration system. This cycle is carried out continuously, so that the oil can be continuously refrigerated.
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