Equivalent Circuit of Single Phase Induction Motor
Based on Double revolving field theory, the equivalent circuit of the single-phase induction motor can be drawn. The circuit is drawn at two positions – standstill rotor condition blocked rotor condition.
The motor with blocked rotor condition acts as a transformer with its secondary winding short-circuited.
In standstill rotor conditions, two rotating magnetic fields are in opposite directions with equally divided magnitudes and appear as connected in series.
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