A transformer can have zero voltage regulation at______________?
A transformer can have zero voltage regulation at______________?
A. leading power factor
B. lagging power factor
C. unity power factor
D. zero power factor
Similar Posts
If a transformer is continuously operated the maximum temperature rise will occur in_______________?
If a transformer is continuously operated the maximum temperature rise will occur in_______________?
A. core
B. windings
C. tank
D. any of the aboveA transformer oil must be free from________________?
A transformer oil must be free from________________?
A. sludge
B. odour
C. gases
D. moistureSpacers are provided between adjacent coils?
Spacers are provided between adjacent coils?
A. to provide free passage to the cooling oil
B. to insulate the coils from each other
C. both A. and (b)
D. none of the aboveIn a transformer the resistance between its primary and secondary is____________?
In a transformer the resistance between its primary and secondary is____________?
A. zero
B. 1 ohm
C. 1000 ohms
D. infiniteWhich 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 typeIn a given transformer for given applied voltage, losses which remain constant irrespective of load changes are______________?
In a given transformer for given applied voltage, losses which remain constant irrespective of load changes are______________?
A. friction and windage losses
B. copper losses
C. hysteresis and eddy current losses
D. none of the above