为什么防爆电机会启动困难，如何解决？
防爆电机启动困难，加负载后不能升至额定转速的原因和解决办法如下：防爆电机电源电压低：电源电压太低时，与供电部门联系解决，若线路压降大，可改用粗电缆。笼型转子开焊或断条：用开口变压器或其他仪器检查。对铜条转子可以补焊，铸铝转子则宜重铸。绕线转子一相断路：用校验灯、万用表找出断路处后修复。绕线转子电刷或启动变阻器接触不良：检修电刷与启动变阻器的接触部位。定子绕组匝数多和定子绕组节距不合适：调整定子绕组。定、转子绕组有局部线圈接错或接反：按设计资料复查，重新接线。防爆电机绕线转子电刷与集电环接触不良：调整刷压，按集电环外圆弧度磨电刷接触表面，以增加接触面积(图\文www.wxjpby.com/)。
中译英：
Explosion proof motor start difficulties, adding loads cannot be rated speed to cause and solution is as follows: explosion-proof motor with low power supply voltage: power when the voltage is too low, and the power supply departments to solve, if the line voltage drop is big, can use thick cable. Cage type rotor welding or breaking: opening of transformer or other instrument check. For copper strip rotor can be welding, cast aluminum rotor are advised to recast. Wound rotor phase breaker: check lamp, multimeter identify circuit after repair. Wound rotor brush or starting rheostat bad contact: maintenance of the brush and the contact position of starting rheostat. Stator winding, and the stator winding pitch: not suitable adjustment of stator winding. A local coil, rotor winding fault or reverse : according to design data review, new wiring. Explosion proof motor winding rotor collector ring brush and bad contact: adjust the brush pressure, according to the collector ring circular arc grinding brush contact surface, so as to increase the contact area.
