3 PHASE MOTOR CONTROL PANEL WITH MONITORING

摘要

PURPOSE: A three phase control consol is provided to monitor the contact state of an electronic contactor equipped in the front end of a three phase motor when the powerthereof is on. CONSTITUTION: A three phase control consol comprises the following details: A power supply(210) supplies a power supply voltage for monitoring. A detector(220) detects an inferior insulation of the three phase motor when power is cut off or a poor contact of an electromagnetic contactor when the power thereof is on. An interface unit(230) is electrically connected with the three phase motor. An output end(240) outputs the information of insulation degradation or contact degradation.