INSTANT CURRENT LIMITER USING A MAGNET SWITCHING FOR DC CIRCUIT BREAKER

摘要

The present invention provides an instant current limiter using a magnet switching for a DC circuit breaker comprising a core unit including a first core wound with a coil to form magnetic field and a second core coupled to the first coil and wound with a coil to form magnetic field opposite to the magnetic field of the first core; and a magnet switching unit coupled to the core unit to short a magnet circuit by the core unit, thereby instantly reducing the fault current just before the interruption using the magnet switching to facilitate the fault current interruption of a DC circuit breaker when short occurs in a DC electric power system.