Transformers
Quick practice
Question 1 of 5
A 3 ph SCIM has rotor resistance of 0.3 Ω/phase & standstill rotor reactance of 2.5 Ω/phase. The ratio of maximum torque to full load torque is 3. What is the ratio of actual stating torque to full load torque for star – delta start?
A
0.7098
B
0.0788
C
0.2366
D
0.2938
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