The assembling capacitor and its complete equipment installed in Pingdingshan electric power supply district are introduced. Determination of reactive power compensation capacity for the substation

and selection of parameters and types for the assembling capacitor and its auxiliary equipment are described. Inrush transient current

over-voltage and electric power network harmonics aocurring in assembling capacitor operation are analyzed

countermeasures taken in practice are introfuced. Finally

viewpoints of how to select the assembling capacitor set more reasonably are given briefly.