Adaptive distance relay setting for series compensated line

作者：Biswal Monalisa^*; Pati Bibhuti Bhusan; Pradhan Ashok Kumar

来源：INTERNATIONAL JOURNAL OF ELECTRICAL POWER %26 ENERGY SYSTEMS, 2013, 52: 198-206.

DOI：10.1016/j.ijepes.2013.03.018

• Active power
• Local end information
• High fault resistance
• Metal oxide varistor

Distance relay protecting series compensated line has limitations with metal oxide varistor (MOV) operation, prefault system condition, high resistance fault and shunt capacitance. This paper proposes an adaptive first-zone distance protection scheme for line with fixed series compensation connected at one end using local measurements. Impedance offered by series capacitor and MOV combination is estimated using relay end fault current. The method has ability to compensate the error due to high resistance fault. The technique is tested for different system operating condition, level of compensation and fault resistance of a 400 kV series compensated line and simulated through EMTDC/PSCAD. Simulation results demonstrate the effectiveness of the proposed method.

• 出版日期2013-11