A. primary side
B. secondary side
C. low voltage side
D. high voltage side
In the transformer the function of a conservator is to_______________?
A. provide fresh air for cooling the transformer
B. supply cooling oil to transformer in time of need
C. protect the transformer from damage when oil expends due to heating
D. none of the above
The hum in a transformer is mainly attributed to______________?
A. load changes
B. oil in the transformer
C. magnetostriction
D. mechanical vibrations
A Transformer transforms____________?
A. voltage
B. current
C. current and voltage
D. power
Which type of winding is used in 3 phase shell-type transformer?
A. Circular type
B. Sandwich type
C. Cylindrical type
D. Rectangular type
Hysteresis loss in a transformer varies as CBmax = maximum flux density) ?
A. Bmax
B. Bmax1-6
C. Bmax1-83
D. B max
The core used in high frequency transformer is usually___________?
A. copper core
B. cost iron core
C. air core
D. mild steel core