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

271.7 V.

238.2 V.

240 V.

256.4 V.

271.7 V.

238.2 V.

240 V.

256.4 V.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In which of the following, voltage regulation may be zero or negative

unity power factor

leading power factor

All of these

lagging power factor

unity power factor

leading power factor

All of these

lagging power factor

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a 3 - ÃŽÂ¦ IM in order to eliminate cogging the number of stator slots must be

equal to number of rotor slots.

either (B) or (C).

unequal to number of rotor slots and skewed in shape.

an integral multiple of number of rotor slots.

equal to number of rotor slots.

either (B) or (C).

unequal to number of rotor slots and skewed in shape.

an integral multiple of number of rotor slots.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In an alternator the voltage generated per phase is proportional to

frequency of waveform.

flux per pole.

All of these

number of turns in coil.

frequency of waveform.

flux per pole.

All of these

number of turns in coil.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A separately-excited dc motor has an armature resistance of 0.5 Ω. It runs off a 250 V dc supply Drawing an armature current of 20 A at 1500 rpm. The torque developed for an armature current Of 10 A, for the same field current, will be

15.28 Nm

16.55 Nm

15.6 Nm

15.92 Nm

15.28 Nm

16.55 Nm

15.6 Nm

15.92 Nm

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following represents the pitch factor?

sin (α/2)

Cos α²

Cos (α/2)

Cos α

sin (α/2)

Cos α²

Cos (α/2)

Cos α

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines

Electrical Machines In which of the following, voltage regulation may be zero or negative

Electrical Machines In a 3 - ÃŽÂ¦ IM in order to eliminate cogging the number of stator slots must be

Electrical Machines In an alternator the voltage generated per phase is proportional to

Electrical Machines A separately-excited dc motor has an armature resistance of 0.5 Ω. It runs off a 250 V dc supply Drawing an armature current of 20 A at 1500 rpm. The torque developed for an armature current Of 10 A, for the same field current, will be

Electrical Machines Which of the following represents the pitch factor?

Electrical Machines
In which of the following, voltage regulation may be zero or negative

Electrical Machines
In a 3 - ÃŽÂ¦ IM in order to eliminate cogging the number of stator slots must be

Electrical Machines
In an alternator the voltage generated per phase is proportional to

Electrical Machines
A separately-excited dc motor has an armature resistance of 0.5 Ω. It runs off a 250 V dc supply Drawing an armature current of 20 A at 1500 rpm. The torque developed for an armature current Of 10 A, for the same field current, will be

Electrical Machines
Which of the following represents the pitch factor?