This Increased transmittable power, improved system
stability, reduced transmission losses, improved voltage
profiles and more flexible power flow control are techno-
economical reasons behind installing Series Capacitors (SCs)
on long transmission lines [1], [2]. SCs and their over voltage
protection typically Metal Oxide Varistors (MOV), in spite of
their beneficial effects on the power system performance,
introduce additional problems and make operating conditions
unfavourable for the protective relays that uses conventional
techniques