Question
Download Solution PDFThe most commonly used nominal primary distribution voltage is ______.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is option 1):(11 kV)
Concept:
- Primary distribution operates at high voltages such as (3.3,6.6 and 11 kV).
- The most commonly used nominal primary distribution voltage is 11 kV
- Primary distribution is usually carried out by 3-phase,3-wire system. Electric power from the generating station is transmitted through extra high tension transmission lines at a voltage from 33 to 765 kV, to the substations.
- At the substations called secondary substations, the voltage is stepped down to 11,6.6 or 3.3 kV with the help of power transformers for primary distribution.
- The 33/11 kV secondary substations are usually located in the area having a load requirement of the order of 5 MVA and normally a primary distribution line or a feeder is designed to carry a load
Last updated on Jul 1, 2025
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