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Electrical Machines
A 3-phase, 2 pole, 12 slot synchronous machine is operating at synchronous speed. Find the slot angle?
18°
60°
20°
30°
18°
60°
20°
30°
Answer
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Related Question
Electrical Machines
Synchronising power of a synchronous motor varies
inversely as 1/Xs
directly as Xs2
All of these
directly as synchronous reactances Xs
inversely as 1/Xs
directly as Xs2
All of these
directly as synchronous reactances Xs
Answer
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Electrical Machines
Two generators operating in parallel with rating 50MW and 100MW respectively. Both their respective governor settings are identical as 4%, consider same no load frequency. How will the machine share a common load of 100 MW
33.33 MW and 66.67 MW respectively
50 MW and 50 MW respectively
any of the above
66.67 MW and 33.33 MW respectively
33.33 MW and 66.67 MW respectively
50 MW and 50 MW respectively
any of the above
66.67 MW and 33.33 MW respectively
Answer
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Electrical Machines
Dynamic braking is very effective for
shunt motors.
series motors.
separately excited motors.
differential compound motors.
shunt motors.
series motors.
separately excited motors.
differential compound motors.
Answer
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Electrical Machines
A 3 stack stepper motor has 12 teeth on stator as well as on rotor. Determine the step size when each stack excited?
45°.
24°.
30°.
10°.
45°.
24°.
30°.
10°.
Answer
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Electrical Machines
Which of the following relation is correct?
Xd = Xq.
Xd > Xq.
Xd < Xq.
None of these
Xd = Xq.
Xd > Xq.
Xd < Xq.
None of these
Answer
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