Advantages and Disadvantages of AC Transmission

Advantages of AC Transmission:

  1. Power can be generated at high voltages as there is no commutation problem.

  2. Ac voltages can be conveniently stepped up or stepped down.

  3. High voltage transmission of ac power reduces losses.

Disadvantages of AC transmission:

  1. Problems of inductances and capacitances exist in transmission lines

  2. Due to skin effect, more copper is required.

  3. Construction of AC transmission lines is more complicated as well as costly

  4. Effective resistance of ac transmission lines is increased due to skin effect.

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