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How can I describe the stator current of a 3-phase locked/stalled induction motor by using equivalent circuit of the motor?

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The slip at locked rotor is 1, so the rotor resistance and reactance are connected directly to neutral for the per phase model.

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Diagram from Fizgarald Kingsley Umans "Electric Machinery" 4th ed

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  • \$\begingroup\$ could you illustrate and quantify it on the diagram? \$\endgroup\$ – user16307 Mar 27 '16 at 22:04
  • \$\begingroup\$ I have added a diagram. \$\endgroup\$ – Charles Cowie Mar 27 '16 at 22:19
  • \$\begingroup\$ thanks do you think in this situation the motor gets harmed? \$\endgroup\$ – user16307 Mar 27 '16 at 22:20
  • \$\begingroup\$ A motor will be damaged if it remains at locked rotor for more than a few seconds at rated voltage. \$\endgroup\$ – Charles Cowie Mar 27 '16 at 22:24
  • \$\begingroup\$ That is based on a squirrel cage induction motor of a usual design. A motor with a high resistance rotor could tolerate full-voltage locked roter a little longer. \$\endgroup\$ – Charles Cowie Mar 27 '16 at 22:27

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