A Method for Voltage Drop Monitoring on Load Sides in Medium Voltage Feeder*

Abstract

At fact, the energy losses are closely related by voltage drop. The utility of distribution networks must reduce voltage drop to raise the performance of the distribution networks. In maintaining the power quality and reduce distribution network losses, voltage drops in the distribution network must always be monitored. Voltage drop monitoring will not be valid through measurement because many points must be observed in the distribution system. This paper will propose a voltage drop calculation model for the distribution system that is more efficient and effective. This method uses a comparative approach and inputs current into the feeder. The proposed method has high accuracy based on the test results compared with the load flow method (96.8 %). This method has successfully simulated monitoring of the voltage drops in the 21-node feeder.