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Match list-I with list-II and select the correct answer using the code given below the lists:
List I
(Method of speed control of 3
phase wound-type induction motor)
A. Stator voltage control
B. Rotor resistance control
C. Constant volts/Hz control
D. Injection of voltage in rotor circuitList-II (Performance achieved)
1. Both speed and p.f. can be controlled
2. Maximum torque remains constant
3. Starting torque decreases
4. Starting torque decreases
b. A→4, B→3, C→2, D→1
c. A→2, B→3, C→4, D→1
d. A→4, B→1, C→2, D→3
asked in Electrical Paper-2, 2008
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