Different Levels Of Voltages For Generation, Transmission And Distribution:
- The generation voltage is upto 30 KV AC rms (line to line).
- The long distance high power transmission is by EHVAC lines 220 kV,
400 kV & 760 kV Ac. In special cases, HVDC line is preffered. The rated
voltages of HVDC lines are ±250 kV, ± 400 kV, ± 500 kV & ± 600 kV.
- The backbone transmission system is done by EHV AC transmission lines
(400 kV AC & 200 kV AC).
- Distribution is at lower AC voltage between 132 kV AC and 3.3 kV AC.
- Utilization is at the low voltages upto 1kV and medium voltage upto 11 kV.
- The industrial substations receive power at distribution voltage such as 3.3 kV
and step down it to 440 V AC. Larger industries receive power at 132 kV and
internal distribution at 3.3 kV to 440 volt AC.
gregorymasila answered the question on February 20, 2018 at 16:23
- 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)
- List the advantages of nuclear power plants over conventional thermal power plants.(Solved)
List the advantages of nuclear power plants over conventional thermal power plants.
Date posted: February 20, 2018. Answers (1)
- What is the fundamental difference between thermal and nuclear power plants?(Solved)
What is the fundamental difference between thermal and nuclear power plants?
Date posted: February 20, 2018. Answers (1)
- What are different welding controls used in resistance welding?(Solved)
What are different welding controls used in resistance welding?
Date posted: February 20, 2018. Answers (1)
- With the aid of sketches explain the operation of a four stroke engine(Solved)
With the aid of sketches explain the operation of a four stroke engine.
Date posted: February 16, 2018. Answers (1)
- Name 3 drawing instruments commonly used in technical drawing and define the use of each tool(Solved)
Name 3 drawing instruments commonly used in technical drawing and define the use of each tool
Date posted: January 26, 2018. Answers (1)
- Highlight different methods of water treatment.(Solved)
Highlight different methods of water treatment.
Date posted: January 15, 2018. Answers (1)
- Name any five factors which determine choice of roof structure(Solved)
Name any five factors which determine choice of roof structure.
Date posted: January 1, 2018. Answers (1)
- Give five functional requirements of foundations(Solved)
Give five functional requirements of foundations.
Date posted: January 1, 2018. Answers (1)
- Explain how to test for silt content in sand.(Solved)
Explain how to test for silt content in sand.
Date posted: January 1, 2018. Answers (1)
- List five causes of unsealing of traps(Solved)
List five causes of unsealing of traps.
Date posted: January 1, 2018. Answers (1)
- State 5 principles of a good drainage system.(Solved)
State 5 principles of a good drainage system.
Date posted: January 1, 2018. Answers (1)