When a motor-driven machine starts to fail, one of the earliest signs is an increase in power draw by that motor – typically before you can hear a problem or it overheats.  For example, a deteriorating bearing or a short in the windings or a plugged downstream filter, can result in significant increases in power draw.

If the motor normally draws between 20kW and 40kW an hour, alerts can be set at 15kW and 45kW - with or without a time delay. So, if the motor exceeds 45kW for a period of X minutes, an alert will be sent.

Here are common problems that can occur with motor-driven systems…

    Over-loaded motors 

  •      Torque Overload
  •      Windings insulation failure
  •     Rotor/Stator/bearing failures
  •     Over-current
  •     Low-voltage
  •     Phase imbalance
  •     Capacitor failure
  •    Clogged downstream filters

Under-loaded motors 

  • Broken or slipping drive belt
  • Loose or sheared shaft coupling
  • Open pump discharge
  • Restricted pump intake
  • Clogged intake filters or screens

In addition to motor-driven machinery, SW can monitor heating equipment too – e.g. heating elements in furnaces. The graph below shows a furnace remaining at maximum temperature for about 3 times its normal cycle.

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