High-Power Laboratory
Prof. Tadashi KOSHIZUKA

Power Systems, Electric MachineryElectronic, Information Systems

Investigation for Current Interruption

The energy system will widely change. The main and important component is the circuit breaker. The circuit breaker used in the sub-station has the structure shown in Fig.1. The arc discharge occurs at the current interruption. We are investigating the arc discharge phenomena and transient phenomena at current interruption. For example, we have a discussion on the uncertainty for the measurement of TRV at low voltage. And, we have a discussion on the high frequency response for the transformer used in power systems. We will appeal of these results to the world.

Prof. Tadashi KOSHIZUKA

Fig.1 Structure of circuit breaker and current interrupting phase

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