Get premium membership and access questions with answers, video lessons as well as revision papers.
Factors involved in selection of factory drives:
- Supply system : DC or AC
- Rating : kW, MW
- Drive : constant speed, Variable speed
- Special Condition : High starting torque, Hazardous location,
Traction duty etc.
- User’s requirement : Duty cycle, noise level, load characteristics etc
off load, load condition
- Enclosures & cooling requirement.
- Environment condition
- Applicable standards
- Cost considerations
gregorymasila answered the question on February 22, 2018 at 16:19
- What are the factors which are involved in circuit breaker rating?(Solved)
What are the factors which are involved in circuit breaker rating?
Date posted: February 22, 2018. Answers (1)
- Write short note about following(i) Wave energy. (ii) Ocean thermal energy(Solved)
Write short note about following(i) Wave energy. (ii) Ocean thermal energy
Date posted: February 22, 2018. Answers (1)
- Derive the hystersis torque expression of the hystersis motor.(Solved)
Derive the hystersis torque expression of the hystersis motor.
Date posted: February 22, 2018. Answers (1)
- Write short notes on Energy conservation(Solved)
Write short notes on Energy conservation
Date posted: February 22, 2018. Answers (1)
- Identify the motor being used in the ceiling fan and explain the method of its control(Solved)
Identify the motor being used in the ceiling fan and explain the method of its control
Date posted: February 22, 2018. Answers (1)
- What is inductive interference? How is it caused and what steps are necessary to
reduce its effect?(Solved)
What is inductive interference? How is it caused and what steps are necessary to
reduce its effect?en
Date posted: February 22, 2018. Answers (1)
- Explain the working of a welding machine.(Solved)
Explain the working of a welding machine.
Date posted: February 22, 2018. Answers (1)
- How is the speed of a DC shunt motor controlled?(Solved)
How is the speed of a DC shunt motor controlled?
Date posted: February 20, 2018. Answers (1)
- Where are synchronous motors used?(Solved)
Where are synchronous motors used?
Date posted: February 20, 2018. Answers (1)
- What are the essential differences between H.V. and L.V. switchgears?(Solved)
What are the essential differences between H.V. and L.V. switchgears?
Date posted: February 20, 2018. Answers (1)
- Why are different levels of voltages used for generation, transmission and
distribution of electric power?(Solved)
Why are different levels of voltages used for generation, transmission and
distribution of electric power?
Date posted: February 20, 2018. Answers (1)
- What do you mean by transmission line efficiency and regulation? Can it be
negative also?(Solved)
What do you mean by transmission line efficiency and regulation? Can it be
negative also?
Date posted: February 20, 2018. Answers (1)
- List out the advantages of nuclear power plants over conventional thermal power
plants.(Solved)
List out the advantages of nuclear power plants over conventional thermal power
plants.
Date posted: February 20, 2018. Answers (1)
- What are the various types of electric drives? Compare their advantages and
disadvantages. State and explain the various factors which affect the selection of an...(Solved)
What are the various types of electric drives? Compare their advantages and
disadvantages. State and explain the various factors which affect the selection of an
electric motor as industrial drive.
Date posted: February 20, 2018. Answers (1)
- Explain principle of carrier current protection and communication.(Solved)
Explain principle of carrier current protection and communication.
Date posted: February 20, 2018. Answers (1)
- Discuss the criteria for choice of voltage for transmission and distribution.(Solved)
Discuss the criteria for choice of voltage for transmission and distribution.
Date posted: February 20, 2018. Answers (1)
- Write short notes on Induction heating:(Solved)
Write short notes on Induction heating:
Date posted: February 20, 2018. Answers (1)
- Discuss methods of laying underground cables.(Solved)
Discuss methods of laying underground cables.
Date posted: February 20, 2018. Answers (1)
- Explain the working of nickel cadmium cells with its merits and demerits over lead acid cell(Solved)
Explain the working of nickel cadmium cells with its merits and demerits over lead acid cell
Date posted: February 20, 2018. Answers (1)
- What are the advantages of high voltage transmission? Give its limitations also.(Solved)
What are the advantages of high voltage transmission? Give its limitations also.
Date posted: February 20, 2018. Answers (1)