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Consider a three-phase induction motor with a normal torque-speed characteristic. Neglecting the effects of stator resistance and leakage reactance, discuss the approximate effect on the characteristic, if:
(a) The applied voltage and frequency are halved.
(b) Only the applied voltage is halved, but the frequency is at its normal value.
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Q. A magnetic force exists between two adjacent, parallel current-carryingwires. Let I1 and I2 be the currents carried by the wires, and r the separation between them.
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what are the grond clearance for 220KV overhead transmission lines?
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