why transformer comes only in standard rating like 11kv,33kv,66kv....and not l

why transformer comes only in standard rating like
11kv,33kv,66kv....and not like 33.33kv and so on?

Question Posted / pinky.m

3 Answers
10939 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

why transformer comes only in standard rating like 11kv,33kv,66kv....and not like 33.33kv and so o..

Answer / suraj kumar padhan

The lines are rated in this way because our form factor is
constant which is 1.1 so for easy calculation it is rated in
the multiplication of form factor. reason behind it is if we
know the form factor than we can calculate the average value
and rms value.

Is This Answer Correct ?

17 Yes

1 No

why transformer comes only in standard rating like 11kv,33kv,66kv....and not like 33.33kv and so o..

Answer / e.b.n chowdara

Generally Power transformers are placed in Transmission and distribution lines, so these line are stranded ratings like 11kv,33kv,132kv,220kv,400kv. So transformer voltage rating are like that.

Is This Answer Correct ?

8 Yes

13 No

why transformer comes only in standard rating like 11kv,33kv,66kv....and not like 33.33kv and so o..

Answer / guest

This is the standard rating of supply companies in India.
So in India you will find 11kv, 33kv and 66kv and above,
But if you go abroad like Saudi its 13.5kv etc.
It all depends on which country you are in. Our country
frequency is 50 cycles per second. But in US or Japan its
60 cycles per second.

Is This Answer Correct ?

4 Yes

10 No

Post New Answer

More Electrical Engineering Interview Questions

How to calculate the sag on transmission Lines.

0 Answers

What is difference between Electrical & Electronic Device?

7 Answers AZ Engineering, Vodafone,

DG B-check,C-Check,D-check is depending upon the running hrs.If the running hrs is not reached as mentioned.How to conduct the DG checks.

15 Answers Blue Star,

can we step up dc power using transformer?

15 Answers

What are various impedence in any machine

2 Answers Engineers India Limited, NTPC,

What is the direction of current flow in ct secondary...means if the current is flowing from P1 to P2 then what will be the direction of current flow in ct secondaryw

0 Answers

Why is water motor not taking the pressure? what is the problem?

0 Answers

how we masure a cuurrent?

5 Answers

Batteries used for electrical energy storage are a. Laclanche cells b. Edison cells c. Lead acid cells d.any of the above

0 Answers

What is the Working principle of ELCB and RCCB?

1 Answers Geo Miler, L&T,

What is the RMS Value. Please discribe in detail

14 Answers Bhel,

What is the formulae of Megger value for a A.C.Motor

0 Answers

For more Electrical Engineering Interview Questions Click Here