Two generators G1 and G2 are to be operated in parallel to deliver a total current of 60 A. Generator one has a terminal voltage of 280 V on no load and 240 V when supplying 40 A current. Similarly the second generator has a voltage of 300 V when on no load and 240 V when supplying of 50 A of current. The output voltage of each generator will be

Electrical Machines
Two generators G1 and G2 are to be operated in parallel to deliver a total current of 60 A. Generator one has a terminal voltage of 280 V on no load and 240 V when supplying 40 A current. Similarly the second generator has a voltage of 300 V when on no load and 240 V when supplying of 50 A of current. The output voltage of each generator will be

256.4 V.

240 V.

238.2 V.

271.7 V.

256.4 V.

240 V.

238.2 V.

271.7 V.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The primary and secondary windings of a transformer are

inductively linked.

mechanically linked.

conductively linked.

electrically linked.

inductively linked.

mechanically linked.

conductively linked.

electrically linked.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
For a practical synchronous motor the pull out torque will occur when the torque angle is nearly equal to

75°.

30°.

0°.

45°.

75°.

30°.

0°.

45°.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The use of higher flux density in the transformer design

increases the weigh per KVA

reduces the weigh per KVA

None of these

has no relation with the weight of transformer

increases the weigh per KVA

reduces the weigh per KVA

None of these

has no relation with the weight of transformer

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
When R2 is rotor resistance, X2 the rotor reactance at supply frequency and s the slip, then the condition for maximum torque under running condition will be

R2 = s2X2.

R2 = sX2.

R2 = s2X2.

sR2 = X2.

R2 = s2X2.

R2 = sX2.

R2 = s2X2.

sR2 = X2.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A synchronous motor is supplying a load at unity power factor. If the load on the motor is increased keeping its excitation and terminal voltage constant, the power factor

None of these

will remain the same

will become lagging

will become leading

None of these

will remain the same

will become lagging

will become leading

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines

Electrical Machines The primary and secondary windings of a transformer are

Electrical Machines For a practical synchronous motor the pull out torque will occur when the torque angle is nearly equal to

Electrical Machines The use of higher flux density in the transformer design

Electrical Machines When R2 is rotor resistance, X2 the rotor reactance at supply frequency and s the slip, then the condition for maximum torque under running condition will be

Electrical Machines A synchronous motor is supplying a load at unity power factor. If the load on the motor is increased keeping its excitation and terminal voltage constant, the power factor

Electrical Machines
The primary and secondary windings of a transformer are

Electrical Machines
For a practical synchronous motor the pull out torque will occur when the torque angle is nearly equal to

Electrical Machines
The use of higher flux density in the transformer design

Electrical Machines
When R2 is rotor resistance, X2 the rotor reactance at supply frequency and s the slip, then the condition for maximum torque under running condition will be

Electrical Machines
A synchronous motor is supplying a load at unity power factor. If the load on the motor is increased keeping its excitation and terminal voltage constant, the power factor