Renovation of Reactive Power Compensation Device in the Main Step-Down Substation of Tongkuangyu Mine
The main function of reactive power compensation is to increase power factor to reduce equipment capacity and power loss,stabilize voltage and improve power supply quality,improve transmission stability and capacity in long-distance transmission,and balance the active and reactive power of three-phase loads.Installing parallel capacitors for reactive power compensation can limit the transmission of reactive power in the power grid,thereby reducing the voltage loss of the line and improving the voltage quality of the distribution network.This paper combines the current power supply situation of the 110 kV/6 kV main step-down substation in Tongkuangyu Mine,and renovates the 6 kV reactive power compensation device on the secondary side of the transformer.The power factor of the transformer has been improved to meet the requirements of the power grid by more than 0.9,improving the quality of power supply and achieving good economic benefits.
reactive power compensationcapacitor compensation devicepower factorenergy conservation and consumption reduction
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