Transformers

mica strip

thin coat of varnish

paper

any of the above

has high magnitude and low power factor

has high magnitude and high power factor

has small magnitude and high power factor

has small magnitude and low power factor

friction and windage losses

copper losses

hysteresis and eddy current losses

none of the above

short-circuiting of the secondaries

power factor of one of the transformers is leading while that of the other lagging

transformers having higher copper losses will have negligible core losses

loading of the transformers not in proportion to their kVA ratings

Horn gaps

Thermal overload relays

Breather

Conservator

zero

1 ohm

1000 ohms

infinite

Bushings

Core

Primary winding

Secondary winding

50°C

80°C

100°C

150°C

is always a low voltage winding

is always a high voltage winding

could either be a low voltage or high voltage winding

none of the above

copper core

cost iron core

air core

mild steel core