Abstract:
In the framework of live working in a MV network, a cable-transformer system can be switched-off or switched-on. The ferroresonance phenomenon can occur during this proce...Show MoreMetadata
Abstract:
In the framework of live working in a MV network, a cable-transformer system can be switched-off or switched-on. The ferroresonance phenomenon can occur during this procedure with very dangerous overvoltages. The metal oxide varistor (MOV) can fail during this phenomenon. The paper investigates the determination of the critical feeder length of cable, which will damage MOVs. A transformer model taking into account both the saturation and the hysteresis is proposed. The digital simulation concerning de-energization of the real configuration of the cable-transformer system is studied and the results obtained are verified by field tests.
Published in: POWERCON '98. 1998 International Conference on Power System Technology. Proceedings (Cat. No.98EX151)
Date of Conference: 18-21 August 1998
Date Added to IEEE Xplore: 06 August 2002
Print ISBN:0-7803-4754-4
