Power Systems
Bundled conductors are used for EHV transmission lines primarily for reducing the

 copper loss
 corona loss
 surge impedance of the line
 voltage drop across the line

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Power Systems
The power level of nuclear reactor can be increase by ( K = multiplication factor )

  raising the value of K above 1, but later bringing it back to K = 1.
 raising the value of K above 1 and keeping it at raised value.
 lowering the value of K below 1 but later bringing it back to K = 1.
 lowering the value of K below and keeping at that lowered value.

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