GETCO Exam Paper (30-11-2008)
The power handling capabilities of transmission lines are

determined by system operators
set by design factors
both (a) & (c )
controlled by load frequency control equipments

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GETCO Exam Paper (30-11-2008)
In a transformer it is difficult to measure the efficiency by output-input measurement methods because

the output is sinusoidal and hence cannot be measured
efficiency of transformer is usually high and hence extremely accurate measurements will be necessary
output is out of phase with respect to input
losses are abnormally high

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