Impact of Apparent Reactance Injected by TCSR on Distance Relay in Presence Phase to Earth Fault
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| Title | Impact of Apparent Reactance Injected by TCSR on Distance Relay in Presence Phase to Earth Fault |
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| Abstract | This research paper presents the impact study of apparent reactance injected by series Flexible AC Transmission System (FACTS) i.e. Thyristor Controlled Series Reactor (TCSR) on the measured impedance of a 400 kV single electrical transmission line in the presence of phase to earth fault with fault resistance. The study deals with an electrical transmission line of Eastern Algerian transmission networks at Group Sonelgaz (Algerian Company of Electrical) compensated by TCSR connected at midpoint of the transmission line. This compensator used to inject voltage and reactive power is controlled by TCSR. The simulations results investigate the three impacts of the apparent reactance injected by TCSR (XTCSR) on transmission line protected by distance relay protection. The impacts concern the active and reactive power, the line impedance (reactance and resistance), and the short circuit parameters (symmetrical currents, line currents, symmetrical voltages and line voltages as well as the measured impedance by relay (resistance and reactance) in the presence of earth fault These impacts are investigated in order to improve the performances of distance relay protection. More the impact of XTCSR by three TCSR for cases studies is presented. |
| Publisher | Faculty of Electrical Engineering and Computer Science |
| Date | 2013-06-30 |
| Source | Advances in Electrical and Electronic Engineering Vol 11, No 3 (2013): June |
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