The direction of rotation of a 3 - ÃŽÂ¦ induction motor is clockwise when it is supplied with 3 - ÃŽÂ¦ sinusoidal voltage having phase sequence A - B - C. For counterclockwise rotation of motor, the phase sequence of the supply should be

Electrical Machines
The direction of rotation of a 3 - ÃŽÂ¦ induction motor is clockwise when it is supplied with 3 - ÃŽÂ¦ sinusoidal voltage having phase sequence A - B - C. For counterclockwise rotation of motor, the phase sequence of the supply should be

B - C - A.

B - C - A or C - A - B.

A - C - B.

C - A - B.

B - C - A.

B - C - A or C - A - B.

A - C - B.

C - A - B.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Flashing the field of DC generator means

neutralising residual magnetism.

increasing flux density by adding extra turns of winding.

making the magnetic losses forces parallel.

creating residual magnetism by a DC source.

neutralising residual magnetism.

increasing flux density by adding extra turns of winding.

making the magnetic losses forces parallel.

creating residual magnetism by a DC source.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Compensating windings is placed in which part of a D.C motor?

On yoke in the pole faces.

None of these

On yoke in the inter pole gap.

On armature.

On yoke in the pole faces.

None of these

On yoke in the inter pole gap.

On armature.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A single phase, 2 KV alternator has an armature resistance of 0.8 ohms and 4.94 ohms respectively. The voltage regulation of the alternator at 100 a load 0.8 loading power factor is

7%.

14%.

8.9%.

0%.

7%.

14%.

8.9%.

0%.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Poles of DC machine are often laminated to

reduce armature reaction.

reduce iron weight.

dissipate more heat.

reduce pulsation loss.

reduce armature reaction.

reduce iron weight.

dissipate more heat.

reduce pulsation loss.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The shaft of induction motor should be

flexible.

stiff.

any of these.

hollow.

flexible.

stiff.

any of these.

hollow.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines

Electrical Machines The direction of rotation of a 3 - ÃŽÂ¦ induction motor is clockwise when it is supplied with 3 - ÃŽÂ¦ sinusoidal voltage having phase sequence A - B - C. For counterclockwise rotation of motor, the phase sequence of the supply should be

Electrical Machines Flashing the field of DC generator means

Electrical Machines Compensating windings is placed in which part of a D.C motor?

Electrical Machines A single phase, 2 KV alternator has an armature resistance of 0.8 ohms and 4.94 ohms respectively. The voltage regulation of the alternator at 100 a load 0.8 loading power factor is

Electrical Machines Poles of DC machine are often laminated to

Electrical Machines The shaft of induction motor should be

Electrical Machines
The direction of rotation of a 3 - ÃŽÂ¦ induction motor is clockwise when it is supplied with 3 - ÃŽÂ¦ sinusoidal voltage having phase sequence A - B - C. For counterclockwise rotation of motor, the phase sequence of the supply should be

Electrical Machines
Flashing the field of DC generator means

Electrical Machines
Compensating windings is placed in which part of a D.C motor?

Electrical Machines
A single phase, 2 KV alternator has an armature resistance of 0.8 ohms and 4.94 ohms respectively. The voltage regulation of the alternator at 100 a load 0.8 loading power factor is

Electrical Machines
Poles of DC machine are often laminated to

Electrical Machines
The shaft of induction motor should be