What are the five commonly used starting methods for the motors.

Question

Want to see more full solutions like this?

Answer 1

Question

Chapter 25, Problem 1SQ

To determine

What are the five commonly used starting methods for the motors.

Expert Solution & Answer

Explanation of Solution

Generally, the polyphase induction motor is a self-starting motor. The commonly used starting methods for a polyphase squirrel cage induction motor are as follows:

1. Full-voltage starting:
An automatic starting or hand-operated switch is connected to the motor directly across the line.
2. Primary-resistance starting:
A resistance unit is connected in series with a stator to reduce the starting current.
3. Autotransformer or compensator starting:
Low voltage starting is applied by performing an automatic or manual switching between the taps of an autotransformer.
4. Impedance starting:
A reactor is connected in series with a motor to reduce the starting voltage.
5. Star-delta starting:
To get the reduced starting voltage, a stator is connected in star connection for starting and delta connection for running condition.

Conclusion:

Thus, the commonly used starting methods for a polyphase squirrel cage induction motor are listed.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

Don't use ai to answer I will report you answer

How can I design a socket for a trolley headlight? What parameters should I measure? The only thing I have is the headlight itself, and I don’t have any information about its power, current, or voltage rating. The power source is 120 V, and my goal is simply to get the headlight to turn on.I’m not sure where to start or what to measure. Any recommendations would be greatly appreciated!

Figure 2 3) *** The circuit of Figure 3 is designed with W/L = 20/0.18, λ= 0, and ID = 0.25 mA. (Optional- 20 points) a) Compute the required gate bias voltage. b) With such a gate voltage, how much can W/L be increased while M1 remains in saturation? What is the maximum voltage gain that can be achieved as W/L increases? VDD = 1.8 V RD 2k - Vout Vin M₁ Figure 3

Answer 2

Question

Chapter 25, Problem 1SQ

To determine

What are the five commonly used starting methods for the motors.

Expert Solution & Answer

Explanation of Solution

Generally, the polyphase induction motor is a self-starting motor. The commonly used starting methods for a polyphase squirrel cage induction motor are as follows:

1. Full-voltage starting:
An automatic starting or hand-operated switch is connected to the motor directly across the line.
2. Primary-resistance starting:
A resistance unit is connected in series with a stator to reduce the starting current.
3. Autotransformer or compensator starting:
Low voltage starting is applied by performing an automatic or manual switching between the taps of an autotransformer.
4. Impedance starting:
A reactor is connected in series with a motor to reduce the starting voltage.
5. Star-delta starting:
To get the reduced starting voltage, a stator is connected in star connection for starting and delta connection for running condition.

Conclusion:

Thus, the commonly used starting methods for a polyphase squirrel cage induction motor are listed.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 25, Problem 1SQ

To determine

What are the five commonly used starting methods for the motors.

Expert Solution & Answer

Explanation of Solution

Generally, the polyphase induction motor is a self-starting motor. The commonly used starting methods for a polyphase squirrel cage induction motor are as follows:

1. Full-voltage starting:
An automatic starting or hand-operated switch is connected to the motor directly across the line.
2. Primary-resistance starting:
A resistance unit is connected in series with a stator to reduce the starting current.
3. Autotransformer or compensator starting:
Low voltage starting is applied by performing an automatic or manual switching between the taps of an autotransformer.
4. Impedance starting:
A reactor is connected in series with a motor to reduce the starting voltage.
5. Star-delta starting:
To get the reduced starting voltage, a stator is connected in star connection for starting and delta connection for running condition.

Conclusion:

Thus, the commonly used starting methods for a polyphase squirrel cage induction motor are listed.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 25, Problem 1SQ

To determine

What are the five commonly used starting methods for the motors.

Expert Solution & Answer

Explanation of Solution

Generally, the polyphase induction motor is a self-starting motor. The commonly used starting methods for a polyphase squirrel cage induction motor are as follows:

1. Full-voltage starting:
An automatic starting or hand-operated switch is connected to the motor directly across the line.
2. Primary-resistance starting:
A resistance unit is connected in series with a stator to reduce the starting current.
3. Autotransformer or compensator starting:
Low voltage starting is applied by performing an automatic or manual switching between the taps of an autotransformer.
4. Impedance starting:
A reactor is connected in series with a motor to reduce the starting voltage.
5. Star-delta starting:
To get the reduced starting voltage, a stator is connected in star connection for starting and delta connection for running condition.

Conclusion:

Thus, the commonly used starting methods for a polyphase squirrel cage induction motor are listed.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 25, Problem 1SQ

To determine

What are the five commonly used starting methods for the motors.

Expert Solution & Answer

Explanation of Solution

Generally, the polyphase induction motor is a self-starting motor. The commonly used starting methods for a polyphase squirrel cage induction motor are as follows:

1. Full-voltage starting:
An automatic starting or hand-operated switch is connected to the motor directly across the line.
2. Primary-resistance starting:
A resistance unit is connected in series with a stator to reduce the starting current.
3. Autotransformer or compensator starting:
Low voltage starting is applied by performing an automatic or manual switching between the taps of an autotransformer.
4. Impedance starting:
A reactor is connected in series with a motor to reduce the starting voltage.
5. Star-delta starting:
To get the reduced starting voltage, a stator is connected in star connection for starting and delta connection for running condition.

Conclusion:

Thus, the commonly used starting methods for a polyphase squirrel cage induction motor are listed.

Answer 6

Chapter 25, Problem 1SQ

To determine

What are the five commonly used starting methods for the motors.

Expert Solution & Answer

Explanation of Solution

Generally, the polyphase induction motor is a self-starting motor. The commonly used starting methods for a polyphase squirrel cage induction motor are as follows:

1. Full-voltage starting:
An automatic starting or hand-operated switch is connected to the motor directly across the line.
2. Primary-resistance starting:
A resistance unit is connected in series with a stator to reduce the starting current.
3. Autotransformer or compensator starting:
Low voltage starting is applied by performing an automatic or manual switching between the taps of an autotransformer.
4. Impedance starting:
A reactor is connected in series with a motor to reduce the starting voltage.
5. Star-delta starting:
To get the reduced starting voltage, a stator is connected in star connection for starting and delta connection for running condition.

Conclusion:

Thus, the commonly used starting methods for a polyphase squirrel cage induction motor are listed.

Answer 7

Chapter 25, Problem 1SQ

To determine

What are the five commonly used starting methods for the motors.

Answer 8

Expert Solution & Answer

Explanation of Solution

Generally, the polyphase induction motor is a self-starting motor. The commonly used starting methods for a polyphase squirrel cage induction motor are as follows:

1. Full-voltage starting:
An automatic starting or hand-operated switch is connected to the motor directly across the line.
2. Primary-resistance starting:
A resistance unit is connected in series with a stator to reduce the starting current.
3. Autotransformer or compensator starting:
Low voltage starting is applied by performing an automatic or manual switching between the taps of an autotransformer.
4. Impedance starting:
A reactor is connected in series with a motor to reduce the starting voltage.
5. Star-delta starting:
To get the reduced starting voltage, a stator is connected in star connection for starting and delta connection for running condition.