Interruption of DC fault current in a DC system is more complex as compared to the AC one
due to the high rate of rise of fault current and absence of natural zero crossing. Fast and …

This study focus on the interruption capability of the DC circuit breaker employing a current
commutation approach and evaluates the two main factors that determine the success rate …

Current interruption in dc circuits is more challenging than in their ac counterparts due to the
absence of natural current zero-crossing and resistive nature of the dc grids. This article …

As DC power is now being promoted due to its various advantages over AC power, it is more
suitable to have a DC grid instead of converting DC to AC for consumption due to the …

There is no zero crossing of the current in DC power circuits. Thus unless you cut off the
short-circuit current quickly, the electrical fire caused by electric arc or spark can occur. And …

HVDC transmission systems using voltage source converters (VSC-HVDC) have been
identified as an attractive solution for bulk power delivery over long distance. However if DC …

Recently, DC distribution systems become hot issues since DC type loads increase rapidly
according to the expansion of IT equipment such as computers, servers, and digital devices; …

The fast fault clearance in medium-voltage direct current (MVdc) grids requires the dc circuit
breakers (DCCBs) with high breaking capability and low cost. The traditional hybrid DCCB …

Owing to the increased demand for DC interruption, a prototype current-limiting hybrid DC
circuit breaker incorporating a fuse and a semiconductor device was developed, based on a …

Removing the fault current in DC circuits is comparably difficult since the DC current has non
zero-crossing point like in AC current [1, 2]. Thus, developing dedicated DC circuit breakers …