A common method of cooling a power transformer is_______________?
A common method of cooling a power transformer is_______________?
A. natural air cooling
B. air blast cooling
C. oil cooling
D. any of the above
Similar Posts
An ideal transformer will have maximum efficiency at a load such that?
An ideal transformer will have maximum efficiency at a load such that?
A. copper loss = iron loss
B. copper loss iron loss
D. none of the aboveThe path of the magnetic flux in transformer should have____________?
The path of the magnetic flux in transformer should have____________?
A. high reluctance
B. low reactance
C. high resistance
D. low resistanceA transformer oil must be free from________________?
A transformer oil must be free from________________?
A. sludge
B. odour
C. gases
D. moistureThe transformer ratings are usually expressed in terms of______________?
The transformer ratings are usually expressed in terms of______________?
A. volts
B. amperes
C. kW
D. kVAIf the supply frequency to the transformer is increased,”the iron loss will__________?
If the supply frequency to the transformer is increased,”the iron loss will__________?
A. not change
B. decrease
C. increase
D. any of the aboveWhich type of winding is used in 3 phase shell-type transformer?
Which type of winding is used in 3 phase shell-type transformer?
A. Circular type
B. Sandwich type
C. Cylindrical type
D. Rectangular type