Elevated Frequency Testing of Ultra High Voltage Shunt Reactors with Advanced Test Setup

Abstract

Tests on ultra high voltage shunt reactors are demanding huge reactive power. Earlier, test was performed at 1.7 p.u. applied per phase connection, however, in revised IEC 60076-3, 2013 this test needs to be performed at 1.8 p.u. on symmetrical three phase connection simultaneously. To meet this requirement, advanced test setup is designed to fulfill the requirements of standards. In this test setup, reactive power compensation is provided in between two test transformers to minimize the current drawn by keeping the voltage level moderate in the power system network. Moreover, a HV passive filter is provided in between test transformer and reactor under test for effective filtration of noise emitted from power source and surroundings. The details of the proposed test setup and related simulations are discussed in the paper.