Answer / sanjay nagar

48000/(4160/1.732)=19.99
Ratio may be taken as 20.

Answer / nain

voltage for delta side will b measured line voltage(phase
to phase)
voltage for star side will b measured phase voltage(phase
to neutral)
as u hav given both line voltages so for star side v will
convert that to phase voltge i.e.4160/1.73=2404.62

so ratio=48000/2404.62=19.96

Answer / ipit

48000/(4160/sqrt(3)) = 48000/2401.77 = 19.98

Answer / kirankumar.nallamekala

48000/(4160*sqrt(3))=6.657

Answer / k.babu

For Step down purpose

tell me working of air circuit braker.

2 Answers  

what is pilot wire? what is the use of pilot wires?

9 Answers  

Why voltage regulation of an alternator is negative for a leading power factor?

3 Answers  

Why do we mix soda with water in LRS?

1 Answers  

can we charge 3 ph power transformer delta-star wound with neutral grounded 6.6kV/415V from secondary side(415V) but with primary(6.6kV) open by dg,what are the disadvantages or losses.

1 Answers  

For high voltage and low current Circuit Breaker preferred is vacuum circuit breaker.why?

1 Answers  

when transformer in load condition neutral earth testing wheater we can do it or not

1 Answers  

It is used or not HT cable single core 630 sqmm in LT 3 phase capacitor bank which is used in PCC(power control center).

1 Answers  

Brushless excitation of synchronous generators and motors

2 Answers   AMIE,

Can a transformer designed for a particular voltage and frequency rating be used for different set of mentioned ratings? Assume that the winding does not get burnt because of overheating at higher voltage. If yes, then under which constraint it is possible?

1 Answers  

discuss thyrister convertor type of AVR.

1 Answers  

What is the unit of charge and current?

0 Answers