Hardware development and validation of DC Circuit Breaker using counter-current injection method

This paper presents development of hardware along with testing of DC (Direct Current) circuit breaker using counter current injection method [1]. The optimized implementation of the system is achieved using the simulation results of the DC circuit breaker topology. To analyze the behavior of prototype on high current, a test bench circuit is developed. The current and voltage sensors are used to sense various outputs during the realization of prototype. The data acquisition is done using LabView. The operating time of clearing fault current with different nature of loads has been discussed in this paper.