A series generator is connected in series to a feeder having 0.5Ω resistance to boost the voltage. The induced voltage is given by Eg = 0.6Ia, Ra = 0.2Ω and Rs = 0.3Ω. Find the voltage boosted by the generator, when delivering 400 Amp?

Electrical Machines
A series generator is connected in series to a feeder having 0.5Ω resistance to boost the voltage. The induced voltage is given by Eg = 0.6Ia, Ra = 0.2Ω and Rs = 0.3Ω. Find the voltage boosted by the generator, when delivering 400 Amp?

60 V.

40 V.

30 V.

90 V.

60 V.

40 V.

30 V.

90 V.

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Electrical Machines
The armature mmf of a DC machine has

stepped distribution and rotates at the speed of armature.

trapezoidal space distribution and is stationary in space.

triangular space distribution and rotates at the speed of armature.

triangular space distribution and is stationary in space.

stepped distribution and rotates at the speed of armature.

trapezoidal space distribution and is stationary in space.

triangular space distribution and rotates at the speed of armature.

triangular space distribution and is stationary in space.

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Electrical Machines
What happens if fifth multiples of harmonics is given to induction motor?

Fail to start.

It will rotates in reverse direction.

It will rotates in normal operation.

Either short circuit or open circuit occurs.

Fail to start.

It will rotates in reverse direction.

It will rotates in normal operation.

Either short circuit or open circuit occurs.

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Electrical Machines
The sequence of induction motor is RYB, then the direction of induction motor can be changed by which of the following sequence?

BYR

RBY

All of these

BRY

BYR

RBY

All of these

BRY

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Electrical Machines
The voltage regulation of a DC generator at full load being zero implies that the generator is

shunt connected.

cumulatively compounded.

series connected.

deferentially compounded.

shunt connected.

cumulatively compounded.

series connected.

deferentially compounded.

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Electrical Machines
Which of the following statement is correct, if short circuit ratio is high?

High voltage regulation

None of these

Low short circuit current

Good voltage regulation

High voltage regulation

None of these

Low short circuit current

Good voltage regulation

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Electrical Machines

Electrical Machines A series generator is connected in series to a feeder having 0.5Ω resistance to boost the voltage. The induced voltage is given by Eg = 0.6Ia, Ra = 0.2Ω and Rs = 0.3Ω. Find the voltage boosted by the generator, when delivering 400 Amp?

Electrical Machines The armature mmf of a DC machine has

Electrical Machines What happens if fifth multiples of harmonics is given to induction motor?

Electrical Machines The sequence of induction motor is RYB, then the direction of induction motor can be changed by which of the following sequence?

Electrical Machines The voltage regulation of a DC generator at full load being zero implies that the generator is

Electrical Machines Which of the following statement is correct, if short circuit ratio is high?

Electrical Machines
A series generator is connected in series to a feeder having 0.5Ω resistance to boost the voltage. The induced voltage is given by Eg = 0.6Ia, Ra = 0.2Ω and Rs = 0.3Ω. Find the voltage boosted by the generator, when delivering 400 Amp?

Electrical Machines
The armature mmf of a DC machine has

Electrical Machines
What happens if fifth multiples of harmonics is given to induction motor?

Electrical Machines
The sequence of induction motor is RYB, then the direction of induction motor can be changed by which of the following sequence?

Electrical Machines
The voltage regulation of a DC generator at full load being zero implies that the generator is

Electrical Machines
Which of the following statement is correct, if short circuit ratio is high?