Improved calculations for no-load transformer switching surges.

This paper deals with a modeling of components and calculation of transient overvoltages that build up on the transformer primary terminals after the transformer has been switched off by a vacuum circuit breaker (VCB). The transformer is connected to the circuit breaker by a cable. The transient ove...

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Vydáno v:	IEEE Transactions on power delivery 16, 3 (2001).
Hlavní autor:	Popov, M.
Médium:	Článek
Jazyk:	English
Témata:	Arc angles. Cable lengths. Cumulative probability. High-frequency quenching capability. Inrush current switching. No-load transformer switching surges. Re-ignitions. Steady-state magnetizing current switching. Terminal impedance. Transformer model. Transformer primary terminals. Transient overvoltages. Vacuum circuit breaker. Virtual current chopping. Withstand voltage characteristics.