5.A 10 kW, 400 V, 4 pole delta-connected squirrel cage induction motor gave the following test results:
No-load test
: 400 V, 8 A, 250 watts.
Blocked-rotor test : 90 V, 35 A, 1350 watts.
The d.c. resistance of the stator winding per phase measured immediately after the blocked rotor test is 0.6 2. Calculate the rotational losses and the equivalent circuit parameters.
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