| 摘要 |
<p>An electronic contactor divides a coil into a coil for insertion and a coil for maintenance. During insertion, a current flows through the coil for insertion having low resistance according to a request for relatively large quantity of current. However, after insertion, the current flows through the coil for insertion and the coil for maintenance according to a request for relatively small quantity of current. When insertion, the electronic contactor restricts an inrush current according to an AC signal and prevents damage to the coil. When maintenance, the electronic contactor prevents noise while repeatedly turning on and off according to a DC signal.</p> |
