Fuse Protection against the Regenerative Circuit Internal Commutation Fault

Current-limiting fuses are widely used to protect the thyristors in dc drive systems. In the event of the commutation failure when regenerating (inverting), the fuses need to interrupt in loop supplied by the ac and dc voltages acting in series which is the most difficult case for protection by fuse. In this paper, a detailed study of the complete interruption process has been investigated by m...