GETCO EXAM PAPER (30-11-2008)

determined by system operators

both (a) & (c )

set by design factors

controlled by load frequency control equipments

is increased at low ambient air temperature

both (a) & (b)

may be limited by stability considerations

is always limited by conductor area

Eddy current loss

Copper loss

Core loss

Hysteresis loss

efficiency of transformer is usually high and hence extremely accurate measurements will be necessary

output is out of phase with respect to input

the output is sinusoidal and hence cannot be measured

losses are abnormally high

saturation of magnetic circuit

large internal fault

any of the above

over load