我厂φ1650毫米圆锥破碎机电动机(容量155千瓦)线路,原来采用Y形起动,△形运转的接法。通过测量,我们发现电动机起动电流大,运行数秒后电流降至80～90安培,偶因给矿量变大,使出现几十秒钟的重载,电流强度达180安培以上。针对上述情况,我们修改电动机的控制线路, I plant φ1650 mm cone crusher motor (capacity 155 kW) line, the original Y-start, △ -shaped operation of the connection. Through the measurement, we found that the motor starting current, running a few seconds after the current dropped to 80 to 90 amperes, even due to the amount of ore to become larger, so that there are dozens of seconds of heavy load, the current strength of 180 amperes or more. In view of the above situation, we modify the motor control circuit,