Vibration and Noise Reduction Techniques of Gapped Core Shunt Reactor

In the transmission lines, Capacitive VARs are generated due to load shedding and switching operation. Shunt reactors are used as shunt compensation devices. To reduce the vibration and noise of a reactor, various techniques have been proposed in this paper. Flux distribution are analyzed using finite element method to optimize the induction. This paper focuses on, the method of determining the optimal air gap between cheese core packets, yoke center and optimal induction so that the displacements caused by contraction due to electromagnetic force and extension due to magnetostriction force cancelled each other. In this paper, a case study of 400 kV class shunt reactor have been discussed.