magnetizing current

Forums Common electrical queries magnetizing current

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  • #1252 Reply
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    Profile photo of KIRUBHAKARAN
    KIRUBHAKARAN
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    “Induction machines draw magnetizing current to produce the magnetic field and hence work at low power factor.”-Please help me with this statement.why the power factor is low ?

    #1258 Reply
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    Kiran Daware
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    Magnetizing current in an Induction motor is the current drawn to set up the necessary rotating magnetic field.  This magnetizing current only experiences an inductive reactance due to the winding (as winding will act like an inductor). And as we know, current lags behind voltage for an inductive reactance, this causes lagging power factor. That is why induction machines always run at a lagging power factor.

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