GETCO EXAM PAPER (30-11-2008)

set by design factors

both (a) & (c )

controlled by load frequency control equipments

determined by system operators

may be limited by stability considerations

both (a) & (b)

is increased at low ambient air temperature

is always limited by conductor area

Core loss

Hysteresis loss

Eddy current loss

Copper loss

the output is sinusoidal and hence cannot be measured

output is out of phase with respect to input

losses are abnormally high

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

saturation of magnetic circuit

large internal fault

over load

any of the above