Compute the effect of the fifth and seventh harmonics

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Consider the system discussed in Problem 11. Compute the effect of the fifth and seventh harmonics on the average torque if the machine is operating at a slip of 0.025 relative to the fundamental component of the applied voltages.

Problem 11

Consider the 3-hp induction motor whose parameters are listed in Table 6.10-1. Plot the torque-speed and dc current-speed curves if it is being fed from a three phase bridge in six-step operation, assuming that the dc voltage is 560 V and the frequency is 120 Hz. Neglect harmonics.

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Reference no: EM131198083

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