Based on system studies, a TCSC was planned on the 400 kV, 400 km line between Kanpur and Ballabhgarh, in the Northern Regional grid of India. This line is a part of one of the transmission corridors which evacuate power from the generation rich south-eastern part of the grid to the northern part. It was envisaged that the power carrying capability of the line could be securely increased from 400 MW to 600 MW. This would improve the grid capability in case of outages of parallel lines.

The power flow can be controlled by scheduling a certain value of the TCSC reactance. Also, the TCSC reactance may be controlled so as to improve angular stability. TCSC (a capacitor in parallel with a Thyristor Controlled Reactor -TCR) is used in conjunction with a fixed series capacitor bank as shown below. The parameters of the TCSC are given below:

	System Parameters	Fixed capacitor	TCSC capacitor
	Rated Voltage (line-line)	420 kV	420 kV
	Nominal Reactive Power	151.6 MVAr	79.87 MVAr
	Continuous Effective Impedance	31.5 W	10.4 W
	Maximum effective dynamic impedance (because of the TCR)	31.5 W	26 W
	Rated Current	1200 A	1600 A
	Rated Continuous Voltage (across capacitor)	42.2 kV	16.6 kV
	TCR inductance per phase	-	4.4 mH

(Data obtained from, "Application of FACTS in Indian Power System", by S. Mukhopadhyay et al, Transmission and Distribution Conference and Exhibition 2002: Asia Pacific, 6-10 Oct. 2002 Volume: 1,  On page(s): 237- 242 vol.1 )