what is formula in determining the size of Circuit Breaker for transformer wit

what is formula in determining the size of Circuit Breaker
for transformer with the following specifications. 7 units
of 1600 volts (primary) and 400 volts (secondary). Both
Primary and Secondary will have a circuit breaker which is
SF6. What should be the Switchgear Main Breaker Size anf
the sizes of each brances Circuit Breaker for Primary.

Question Posted / dalton

1 Answers
4410 Views
ABB, I also Faced
E-Mail Answers

what is formula in determining the size of Circuit Breaker for transformer with the following spec..

Answer / k.prakashchandra

What is the expected max load?

Is This Answer Correct ?

1 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

What is MSL designation of a motor and same may be provided in details.

0 Answers DAE,

I have 480V Single phase and I am trying to figure how big of a transformer (KVA's) and Primary breaker size I need to provide 200 Amps at 240V for a building.

1 Answers Wipro,

What will happen if primary of transformer is fed with Square wave instead of sinsoidal wave ?Will it operate or Not?

3 Answers Areva,

if single phase is 230 v three phase is 440 v then what about two phase?and why is it so?

2 Answers Eicher,

can induction motor run over the rated speed ?

12 Answers ACC,

What is meant by short-pitched winding?

0 Answers

What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?

0 Answers HAL,

1.Why sinle phase motor is not self starting 2.working principle of alternator 4.list out electrical formula

2 Answers

How generating electric power export to grid from the generating station ?

0 Answers

What happent when a AC motor(no break and starters ) stop and suddenly start . ? Starting current low or high?? Why?

1 Answers

ht side line to earth voltage

0 Answers JLL,

Pure inductive ckt takes power from AC when 1. Applied voltage and Current increases 2. applied voltage and current decreses 3. voltage decreases and current decreases please justify

2 Answers

For more Electrical Engineering Interview Questions Click Here