Application Research on Using AC 0.69 kV for Long-Distance Low-Voltage Motor Distribution on Urban Lines
Analyzed the feasibility and economy of using AC0.69kV(660 V)power supply for motor loads in urban line sections.AC0.69kV(660 V)is the standard voltage specified in the specification,and low-voltage related components can operate normally in the 0.69 kV system.Its practical application cases in China′s industrial field are countless.Research has shown that the application of AC 0.69 kV in the field of urban line motor distribution is feasible.Suitable loads can be selected,powered by AC 0.69 kV.The distribution scheme for other loads can be powered by the conventional AC 0.4 kV method,and two schemes can be parallel.Each city line project should determine the long-distance motor distribution plan based on engineering investment estimation.When the distance and capacity of the load are reasonable,AC 0.69 kV can significantly reduce the total investment of the project.
urban linelong-distance low-voltage motor distributionAC 0.69 kV voltage systeminlet rainwater pumpjet fanstandard voltage
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