PERMANENT MAGNET ACTUATOR FOR VACUUM CIRCUIT BREAKER

摘要

The present invention reduces the contact closing operation driving speed of the vacuum in the vacuum interrupter breakers permanent magnet actuator as to provide the vacuum interrupter by a permanent magnet actuator which can reduce the wear and bounce (bouncing) of the contact of the vacuum circuit breaker, closed coil for generating a magnetic flux to drive the vacuum interrupter contacts in the closed position; Is installed separately from the closing coil, open-circuit coil to generate a magnetic flux to drive the vacuum interrupter contacts to the open-circuit position; Laminated iron core which provides a magnetic path of the magnetic flux to move from the closed or open coil coil; The linearly movable through the coil and the interior of the open-circuit inside the closed armature coil (armature); Is provided between the armature and the laminated iron core, the permanent magnet that provides a magnetic force to maintain the position on the armature; And is provided on the periphery of the laminated iron core adjacent the closed coil, the annular conductor into the lungs when the coil is to be excited by a current flowing through the coil to form an induced eddy current into the lungs to ease the closed position moving speed of the vacuum circuit breakers is configured to include.