Detection and protection device for motor anomalies and method thereof

Detection and protection device for motor anomalies and method thereof

  • CN 101,752,948 A
  • Filed: 12/19/2008
  • Published: 06/23/2010
  • Est. Priority Date: 12/19/2008
  • Status: Active Grant
First Claim
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1. a motor abnormality detection protective device is electrically connected a motor, and it comprises:

  • One sensing cell, a state of this motor of sensing, and produce at least one first sensing signal and the output of one second sensing signal;

    One abnormal deciding means, be electrically connected this sensing cell, this abnormal deciding means has one first preset value, wherein can be judged to be abnormality when this first sensing signal that receives and the variation between this second sensing signal exceed this first preset value, and produce alarm signal output;

    AndOne control unit is electrically connected this abnormal deciding means, after receiving this alarm signal, and controls this motor according to this alarm signal and shuts down.

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