it mainly introduces applications and methods of reactive power compensation of capacitor in agriculture,how to increase the power factor by use of capacitor, and the wiring way of capacitive compensation in practical application.

In order to select reactance ratio of series reactors in reactive compensation capacitors bank properly to ensure safety of the capacitors, by methods of circuit analysis and ATP-EMTP simulation, the influences of reactance ratio on switching inrush current, high frequency harmonics over current, switching inrush voltage, and re-fire overvoltage etc.

In this article,we discuss the effect of the series reactor in var compensation capacitor sets ,and how to consider the connection between the reactance rate and the primary harmonics of the power system when we confirm it.

This paper probes into the method for selecting the power distribution transformer, the capacitance reactive compensation and the capacity of the diesel generating set in the building s electrical design, and puts forward some problems needing attention.