1) Shunt capacitor：Shunt capacitor is mainly used in power frequency AC system to reduce loss in the system, improve power quality and power factor.

2)Series capacitor：Series capacitor is mainly used in 50Hz, 10-1000kV AC system to reduce reactance in the system, improve transmission safety and stability, lower the project cost.

3)Filter capacitor：Filter capacitor is mainly used in 50Hz or 60Hz, rated voltage more than 1000kV AC system to reduce reactance in the system, improve power quality and power factor.

Manufacturing standards 

The capacitor units meet the standards IEC60871, IEC 60143, ANSI/IEEE standard 18.