The Influence of the Distributed Generation to the Distribution Network Line Protection and Countermeasures

This paper analyses the impact of distributed generation on the sensitivity and selectivity of distribution network line protection, proposes the method of using impedance current limiter in solving the impact of the increased current that distribution generation provides on the protection selectivity. Also, gives the position of limiting impedance location and the selection method of the scheme, the feasibility of scheme is verified through an example.