1
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
Unbalanced supply voltage given to a $$3-$$ phase, data-connected induction motor will cause
A
zero sequence currents
B
less heating of the rotor
C
negative sequence component current
D
all of these
2
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
When the supply voltage to an induction motor is reduced by $$10\% $$, the maximum torque will decrease by approximately
A
$$5\% $$
B
$$10\% $$
C
$$20\% $$
D
$$40\% $$
3
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
In case of a split phase motor, the phase shift between currents in the two windings is around
A
$$30$$ degrees
B
$$70$$ degrees
C
$$90$$ degrees
D
$$120$$ degrees
4
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
An induction motor having full load torque of $$60$$ $$Nm$$ when delta-connected develops a starting torque of $$120$$ $$N$$-$$m.$$ For the same simply voltage, if the motor is changed to star-connection, the starting torque developed will be
A
$$40$$ $$Nm$$
B
$$60$$ $$Nm$$
C
$$90$$ $$Nm$$
D
$$120$$ $$Nm$$
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