Thermal relay running monitoring system

Thermal relay running monitoring system

  • CN 105,510,823 A
  • Filed: 01/25/2016
  • Published: 04/20/2016
  • Est. Priority Date: 01/25/2016
  • Status: Active Application
First Claim
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1. an electrothermal relay operation monitoring system, is characterized in that, comprising:

  • Current sensing means, its current value of input end of motor input current for detecting electrothermal relay to be monitored and protecting, and described current value is uploaded in database;

    Pressure transducer, it is arranged on the input end of the reset command of described electrothermal relay to be monitored;

    Described pressure transducer detects the input pressure of described input end, and is uploaded in described database by described force value;

    Described controller, it prestores the amount current value of described motor to be monitored;

    Described controller transfers described current value in real time from described database, and when described current value is greater than described load current value, record current time is the very first time;

    And described controller transfers described force value in real time from described database, and to record current time be the second time;

    The described very first time and described second time are uploaded to described database by described controller;

    Described database, also stores the permissible error time;

    Wherein, when described second time and the described very first time interval greater than the described permissible error time time, judge that described electrothermal relay to be monitored runs and break down.

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