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A three phase squirrel cage induction motor has the nameplate data shown in Table I below
Table I : Induction Motor Nameplate Data.
a) Calculate the induction motor efficiency for the load test.
b) It is required to supply the same torque at a speed of 1200rpm. Approximately, determine the supply voltage and frequency required to achieve this speed and torque condition.
[Hint: Neglect the effects on the induction motor variable speed torque response due to R1 and the mechanical losses.]
c) Explain why the supply frequency must change from 50Hz in order to achieve the loading condition.
A gantry crane shown in figure above acts an auxiliary to bridge cranes. It is provided with wheels and can be moved from open place to another as per requirements.
how to e solve motion of followers in simple harmonic motion. what is the angle thita?
Prlblems 1 & 3 can you provide accurate and clear solved out solutions not done by computer either.
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