4 7 A A 0 75 Kw Induction Machine Is Operating From A 110 V 60 Hz Ac Power Supply Its Synchronous Speed Is 1200 Rpm 1 (55.4 KiB) Viewed 22 times
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a) 82.5V, 45Hz b) i) 800rpm ii) 850rpm. Please explain
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4.7. (a) A 0.75 kW induction machine is operating from a 110 V, 60 Hz AC power supply. Its synchronous speed is 1200 rpm and its rated speed is 1100 rpm. Calculate the required supply voltage and frequency to give a synchronous speed of 900 rpm. (b) With the conditions in part (a), calculate the speed corresponding to : (i) rated torque (ii) half rated torque
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