Episode 12 of the QSPICE course covers TVS diodes and MOV varistors for power circuit overvoltage protection. After examining the operation of fuses in the previous installment of this course, we now ...

Abstract: In view of the problems of large volume, high energy consumption and difficult maintenance of electric field measurement sensors in existing power systems, non-contact miniature electric ...

Abstract: With emerging technologies and products in power semiconductors and ultrafast mechanical switches, direct-current circuit breakers (DCCBs) have been developing rapidly. Yet the metal-oxide ...

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Abstract: This contribution discusses different aspects of impulse energy handling capability of metal-oxide (MO) varistors used in high-voltage surge arresters. The investigations were performed on ...

An ideal protection device must limit the energy going to the load being defended, to a sufficient minimum level, such that the load is not damaged. The protection device must survive this energy ...