Examining the impact of parallel compensators SVC and STATCOM on distance relays functioning in transmission network

Modern systems of energy transfer due to large loads with high voltages who can drop measures should be used to solve this problem. One of the ways FACTS elements such as voltage regulation of series capacitors and SVC which in addition to increasing the capacity of transmission lines, stability and crafts balancing losses is three-phase voltages. But FACTS elements can be performance of protection schemes, including distance protection for transmission lines used, damage. Relay impedance measurement along with errors that caused the earth fault resistance, the condition of the system error, the effects of parallel and series capacitors FACTS, etc. are elements each of which can increase the range and reduce relay that resulting in the loss of harmony between the distance relays. Therefore, it is necessary to examine the effect of various elements on the distance relay and solutions to them be used.

کلیدواژه ها:

svc ، statcom ، facts ، distance relays