Derive an expression for the instantaneous field current

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Derive an expression for the instantaneous field current for a three-phase short circuit at the terminals. As in Problem 4, assume that the machine is initially operating with the stator open-circuited and that the speed remains constant during the fault.

Problem 4

Derive an expression for the instantaneous electromagnetic torque during a three phase short circuit at the terminals. Assume the stator terminals of the machine are initially open-circuited and the speed does not change during the fault.

Reference no: EM131198124

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