A 4 pole dc motor with armature winding resistance of 0.6 ohm receives a supply of 230 Volt. If the back emf produced during running condition is equal to 210 volt. Calculate the current flowing through the armature at this point.

Electrical Machines
A 4 pole dc motor with armature winding resistance of 0.6 ohm receives a supply of 230 Volt. If the back emf produced during running condition is equal to 210 volt. Calculate the current flowing through the armature at this point.

44.47 Amp.

43 Amp.

33.33 Amp.

29 Amp.

44.47 Amp.

43 Amp.

33.33 Amp.

29 Amp.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Slip speed is the

half of the sum of synchronous and rotor speeds.

difference of actual rotor speed and synchronous speed.

sum of synchronous and rotor speeds.

difference of synchronous speed and actual rotor speed.

half of the sum of synchronous and rotor speeds.

difference of actual rotor speed and synchronous speed.

sum of synchronous and rotor speeds.

difference of synchronous speed and actual rotor speed.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A transformer has resistance and reactance in per unit as 0.01 and 0.04 respectively. Its voltage regulation for 0.8 power factor lagging and leading will be

6% and -4%

4.8% and -3.2%

None of these

3.2% and -1.6%

6% and -4%

4.8% and -3.2%

None of these

3.2% and -1.6%

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Which of the following induction motor has the highest starting torque?

None of these

Slip ring induction motor.

Same in both induction motors.

Squirrel cage induction motor.

None of these

Slip ring induction motor.

Same in both induction motors.

Squirrel cage induction motor.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A 3 - ÃŽÂ¦, 4 pole IM is supplied from a 50 Hz source. Calculate rotor frequency when rotor runs 600 rpm?

Can be determined.

35 Hz.

20 Hz.

30 Hz.

Can be determined.

35 Hz.

20 Hz.

30 Hz.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In an ideal DC generator the regulation is

low.

zero.

high.

positive.

low.

zero.

high.

positive.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines

Electrical Machines A 4 pole dc motor with armature winding resistance of 0.6 ohm receives a supply of 230 Volt. If the back emf produced during running condition is equal to 210 volt. Calculate the current flowing through the armature at this point.

Electrical Machines Slip speed is the

Electrical Machines A transformer has resistance and reactance in per unit as 0.01 and 0.04 respectively. Its voltage regulation for 0.8 power factor lagging and leading will be

Electrical Machines Which of the following induction motor has the highest starting torque?

Electrical Machines A 3 - ÃŽÂ¦, 4 pole IM is supplied from a 50 Hz source. Calculate rotor frequency when rotor runs 600 rpm?

Electrical Machines In an ideal DC generator the regulation is

Electrical Machines
A 4 pole dc motor with armature winding resistance of 0.6 ohm receives a supply of 230 Volt. If the back emf produced during running condition is equal to 210 volt. Calculate the current flowing through the armature at this point.

Electrical Machines
Slip speed is the

Electrical Machines
A transformer has resistance and reactance in per unit as 0.01 and 0.04 respectively. Its voltage regulation for 0.8 power factor lagging and leading will be

Electrical Machines
Which of the following induction motor has the highest starting torque?

Electrical Machines
A 3 - ÃŽÂ¦, 4 pole IM is supplied from a 50 Hz source. Calculate rotor frequency when rotor runs 600 rpm?

Electrical Machines
In an ideal DC generator the regulation is