Which of following methods are suitable for the speed control of squirrel cage induction motor? 1. Voltage control. 2. Frequency control. 3. Pole changing method. 4. Rotor resistance control select the correct answer using the codes given below:-

Electrical Machines
Which of following methods are suitable for the speed control of squirrel cage induction motor? 1. Voltage control. 2. Frequency control. 3. Pole changing method. 4. Rotor resistance control select the correct answer using the codes given below:-

2 and 4.

1, 2 and 3.

1, 3 and 4.

2, 3 and 4.

2 and 4.

1, 2 and 3.

1, 3 and 4.

2, 3 and 4.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The three point starter is used for

Shunt, compound and series motor.

Shunt motor.

Shunt motor as well as compound motors.

Series motor.

Shunt, compound and series motor.

Shunt motor.

Shunt motor as well as compound motors.

Series motor.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be

0.62.

0.25.

1.24.

0.72.

0.62.

0.25.

1.24.

0.72.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Diverters are used only in

either of these

None of these

shunt motors

series motors

either of these

None of these

shunt motors

series motors

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The power input to a 3 - φ induction motor is 60 kW and stator loss is 1 kW the rotor cu loss per phase is

1.

slip X 50 / 3.

slip X 59 / 3.

slip X 69 / 3.

1.

slip X 50 / 3.

slip X 59 / 3.

slip X 69 / 3.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In a synchronous generator with constant steam input supplies power to an infinite bus at a lagging power factor. If the excitation is increased

power angle increase and power factor decrease

power angle decrease and power factor increase

both power angle and power factor decrease

both power angle and power factor increase

power angle increase and power factor decrease

power angle decrease and power factor increase

both power angle and power factor decrease

both power angle and power factor increase

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines

Electrical Machines Which of following methods are suitable for the speed control of squirrel cage induction motor? 1. Voltage control. 2. Frequency control. 3. Pole changing method. 4. Rotor resistance control select the correct answer using the codes given below:-

Electrical Machines The three point starter is used for

Electrical Machines A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be

Electrical Machines Diverters are used only in

Electrical Machines The power input to a 3 - φ induction motor is 60 kW and stator loss is 1 kW the rotor cu loss per phase is

Electrical Machines In a synchronous generator with constant steam input supplies power to an infinite bus at a lagging power factor. If the excitation is increased

Electrical Machines
Which of following methods are suitable for the speed control of squirrel cage induction motor? 1. Voltage control. 2. Frequency control. 3. Pole changing method. 4. Rotor resistance control select the correct answer using the codes given below:-

Electrical Machines
The three point starter is used for

Electrical Machines
A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be

Electrical Machines
Diverters are used only in

Electrical Machines
The power input to a 3 - φ induction motor is 60 kW and stator loss is 1 kW the rotor cu loss per phase is

Electrical Machines
In a synchronous generator with constant steam input supplies power to an infinite bus at a lagging power factor. If the excitation is increased