What is the allowable fluctuation range of industrial standard 380V power supply voltage?
Industrial standard 380V power supply voltage fluctuation range is plus or minus ten percent
220V single-phase power supply voltage deviation is nominal, called system voltage +7%, - 10%.Users with special requirements for the allowable voltage deviation of the supply voltage shall be determined by agreement between the supplier and the power supplier.
The voltage fluctuation range is as follows:The sum of the positive and negative deviations of the supply voltage above and above the 35kV shall not exceed l0% of the nominal system voltage. Note: if the electric voltage is up and down, the same number (all positive or negative), the absolute value of the larger deviation is used as the basis of measurement.10, kV and below three-phase supply voltage deviation is nominal system voltage, taxi 10%.
