Solid-state circuit breakers (SSCB) show great promise to become the key element in protection of low-voltage direct current microgrids. SSCBs operate microsecond range and employ semi-conductor devices that have strict safe operation area limits. Therefore, design SSCB needs consider effects fault detection delays limitations. This paper derives criteria effect different methods with under var...

To secure the transmission lines against power system faults, distance relays are mostly used. Distance relay has its own Resistance (R)–Reactance (X) characteristics. Co-ordination of different is necessary for fast operation circuit breaker. Various which being tripped with respect to breakers attached at individual buses faraway from each other. These will be operated between occurred fault ...

Abstract To improve the accuracy of mechanical fault diagnosis operating mechanism and fully exploit characteristic information in vibration signal high-voltage circuit breaker, a method breaker based on deep self-encoding network is proposed. First, switch extracted, wavelet packet conversion performed, each frequency band divided into equal times. The energy time–frequency subplane then calcu...