A 600 kW induction generator is connected to a 690 Volt system.
Using approximations on the equivalent circuit of the induction
generator, calculate the following:
i .
The slip at rated output power
ii.
The maximum fault contribution (in MVA) from the
generator to a three phase short circuit at the point of
connection
Induction machine data
Power Factor at rated output: 0.9
Star equivalent circuit parameters
Stator leakage reactance: 0.0750 ohms
Rotor leakage reactance: 0.0900 ohms
Rotor resistance: 0.0065 ohms
Magnetising reactance: 3.25 ohms
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