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TABLE OF RESULTS: NO V. (Volt) Int (Amps) Pri(watt) N(rpm) 44 v 38.8 0.13 00 0 88 v 150.5 0.30 24 168 3 132 v 226.9 32 915 0.29 302.2 176 v 0.28 2348 36 15 380 220 v 0.32 2595 44
What machine parameters can be obtained from No-Load test? What is the power factor of the machine? Comment on its value. What should be the no load current of an induction motor? Even though there is no-load, why wattmeter reading is not zero? Comment on the slip of the machine when operated at rated voltage. How to obtain the no-load input power to an induction motor when two-wattmeter method of measuring power used? Can a three phase induction motor be started from a single phase supply? No load test is conducted at (a)rated current, (b)rated voltage, (c)high voltage, (d)high current