Which of the following is not necessarily an advantage of interconnecting various power stations?

Improved frequency of power supplied
Reduction in total installed capacity
Increased reliability
Economy in operation of plants

The correct answer is: A. Improved frequency of power supplied

Interconnecting various power stations can have a number of advantages, including:

  • Increased reliability: By connecting multiple power stations, it is possible to maintain a steady supply of power even if one station fails.
  • Economy in operation of plants: By sharing the load, interconnected power stations can operate more efficiently.
  • Reduced environmental impact: By using a mix of different types of power stations, it is possible to reduce the overall environmental impact of electricity generation.

However, interconnecting power stations does not necessarily improve the frequency of power supplied. In fact, it can sometimes lead to fluctuations in frequency, as the power stations try to balance the load.

Therefore, the correct answer is A.

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