Dynamic characteristics of electromagnetic contactor with HTS-2G coil in liquid nitrogen

Abstract

In this paper is presented experimental investigation of dynamic characteristics of electromagnetic contactor with Hightemperature superconductive (HTS) coil in liquid nitrogen. Transient characteristics of armature dynamics and current during electromagnet switching are presented and analysed. HTS coil could provide reduced electric energy consumption in long term operation by active coil resistance reduction, improving this way electromagnetic contactor energy efficiency. Estimation of electromagnetic contactor with HTS-2G coil energy consumption is also presented.