The operation of the electric motors, which are in poor health, leads to the direct financial losses, connected with an unpredictable failure of the equipment and, as a result, the violation of flow, and also the considerable cost of electricity, due to the high power consumption.
The diagnostics of the rotary equipment is usually made by the vibration parameter. However, the diagnostics of the equipment by the power consumption parameter has a great potential, since that allows to increase the depth of the diagnostics of the so-called electrical defects, i.e. defects and failures, connected with the electromagnetic forces disbalance. For instance, if the resistance to shaft movement occurs, so it would be reflected in the change of the respective current signal, and in the increasing of power consumption.
The physics principle in the basis of diagnostic complex operation is that any perturbations in the operation of the electric or mechanic part of an electric motor and equipment, connected with it, lead to the changes of the magnetic flux in the gap of the electric machine and, as a result, to the consumption current modulation.
Tkachenko A.A., Naumenko A.P. Research on the dependence of the parameters of the electric motor current consumption on its health // Science, education, business (“Nauka, obrazovanie, biznes”). - 2011. - pp. 217-219
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