how to calculate busbar capacity for 1000Kva transformer having22/.433V

Question Posted / waman_sanjay

2 Answers
7120 Views
Electrical Tech, L&T, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

how to calculate busbar capacity for 1000Kva transformer having22/.433V..

Answer / shaik

First of all the voltage ratings given in the question might
be wrong. But the basic rule for calc. the ampacity is to
first find out the current..

Power/ Volts = Amp.

Then the ampacity of the conductor is choosen by taking 125%
of the current.

Here if i consider voltage of this tranformer to be 22/.433
kv. then on primary side the busbar capacity has to be,

1000x1000/22x1000 =45.45 A

45.45x 1.25=56.81 Amps.

Therefore the busbar capacity on primary side should not be
less than 60 Amps.

Similarly, secondary side is calc.

Is This Answer Correct ?

5 Yes

4 No

how to calculate busbar capacity for 1000Kva transformer having22/.433V..

Answer / a.p.nanjappa

THE lv BUS IS DESIGNED FOE 25% OVERLOAD. 1.25 X In. Select
the nearest value as per standards manufacturer,.If you
exact your figures, supplier quote high price.

Is This Answer Correct ?

0 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

Buchholz relay is used ………. a) protection T/F b) oil T/F c) Air core T/F

8 Answers Engineers India Limited,

Difference between single phase and three phase?

1 Answers

What is the role of link in neutral in a three phase ac system?

10 Answers

How you calculating the current for a 2.5 Sqmm cable. A 30 Hp 3 phase AC motor of power what size of cable is used for this motor.

7 Answers Siemens,

How much amperes needed for starting of 4HP motor?

1 Answers CM Smith Sons,

what is the role of impedance in transformer?based on secondary f.l.current(139 amps) and impedance(4.07) of 415/415v of 100 kva transformer. what is the primary current?

1 Answers

In power transformer tappings are provided on A high voltage side B low voltage side C In middle of both the windings D both high and low voltage side

2 Answers NNN,

What are the functions of different probes used in cro?

0 Answers

A dc motor running on dc drive whose input is 3ph AC what will happen if we change the phase sequence of dc drive for e.g (R Y B) is connect as R B Y, will the motor run as same as previously running before changing phase without any effect

4 Answers

iam working in power plant. In hot places tube lights are glowing at the end portion only. what is the reason for that?

0 Answers

what is power factor

4 Answers UltraTech,

WHAT IS B & C CLASS SURGE PROTECTION AND WHAT IS DIFFERENCE BETWEEN B & c CLASS SP

2 Answers Bharti,

For more Electrical Engineering Interview Questions Click Here