FAULT PREDICTION AND DIAGNOSIS APPARATUS OF MOTOR CONTROL CENTERS

摘要

The present invention provides an apparatus for predicting and diagnosing a fault of a motor control board. The apparatus for predicting and diagnosing a fault comprises: a central processing unit (CPU) module receiving an input of each current value of a motor control center (MCCB) and a magnetic contactor (MC) from the MCCB and the MC, which are positioned on the interior of the motor control board; an interface module receiving an input of communication state information of a protective relay from the protective relay of the motor control board; a communication module receiving an input of a current value and the communication state information from the CPU module and the interface module and transferring the current value and the communication state information; and a main server receiving the current value and the communication state information transferred from the communication module, analyzing the received current value and the received communication state information, and outputting an analysis result. According to the present invention, whether the protective relay for a motor has an error is monitored in real time such that a big default caused by an erroneous operation or non-operation of the protective relay can be prevented.