This fixed series compensator is primarily used to enhance the transmission capacity of HV transmission lines (220kV, 500kV, and 750kV etc.) to improve the power angle stability. An FSC is a series capacitance inserted into the transmission line.
Single-line diagram of series compensator
Typical series compensator project
The series compensator assists in increasing the transmission capacity. Assuming the compensation degree is 40～50%, the transmission capacity can be enhanced by at least 30%.
Evident increase of power transmission capacity after the SC is inserted in the power transmission corridor
