Akira power supply circuit for controlling electrical effects

AC contactor low voltage motor control system is widely used, accounted for a large proportion. Because electromagnetic contactor works feature Akira power occurs when the grid will cause electromagnetic or short-time working coil contactor power or low voltage, resulting current is maintained by the pull dynamic and Electric energy meter suction less than release force of the spring, generates the contact trip down to release the important reasons. Electromagnetic AC circuit breakers characteristics: electric meter IEC standards, 80% of the rated voltage threshold reliable pull-in voltage. Threshold voltage of the rated working voltage release of 20-70%, the electromagnetic field use AC contactor are generally in the 50% of the nominal voltage release, so because of "shake" cause electromagnetic contactor uncontrolled nature trip downtime is caused by the principle