SiC Based DC Solid State Electronic Circuit Breaker and Intelligent Protection Coordination

Meeting & Discussion

1. The analog control can turn off the circuit within a dozen microseconds, and use the detection of the voltage across both ends of the switch as the basis for turning off, and design an inductor to limit the fault current rise rate, and the modular design can be applied to different specifications.
2. The input voltage of this circuit breaker is 500 V. By changing the operating area of the output characteristics of the SiC MOSFET, the fault current of the circuit breaker can be limited to 50 A, 100 A, 150 A and 200 A, and zero current can be achieved within a dozen microseconds cut off.

National Cheng Kung University

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