WHY WE NEED AUTO TRANSFORMER,WHERE WE CAN USE?

Categories >> Engineering >> Electrical Engineering
Suggest New Category

Question Posted / vkn.1980@gmail.com

5 Answers
17124 Views
L&T, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

WHY WE NEED AUTO TRANSFORMER,WHERE WE CAN USE?..

Answer / manoj tyagi

1.for obtaining variable o/p voltage
2.for interconnecting power s/s having voltage ratios,npy
differing far from unity
3.for starting induction $synchronous motor

Is This Answer Correct ?

25 Yes

6 No

WHY WE NEED AUTO TRANSFORMER,WHERE WE CAN USE?..

Answer / sudhir singh

For obtaining variable output voltage we need auto
transformer because in auto transformer much cupper is
saved.
The autotransformer is used as voltage regulator,in
excitation of various machine.

Is This Answer Correct ?

8 Yes

0 No

WHY WE NEED AUTO TRANSFORMER,WHERE WE CAN USE?..

Answer / meenakshi

it has superior voltage regulation,higher efficiency, n
copper saving. and its mainly used to giv boost to
distribution cable for correcting voltage drop,as furnace
transformer for gettn a convenient supply to suit the
furnace winding,as interconnectng transformer n also as
control equipment.

Is This Answer Correct ?

3 Yes

0 No

WHY WE NEED AUTO TRANSFORMER,WHERE WE CAN USE?..

Answer / m c gupta

To get the step down voltage economically as compared to
two winding transformer

Is This Answer Correct ?

5 Yes

4 No

WHY WE NEED AUTO TRANSFORMER,WHERE WE CAN USE?..

Answer / raul

auto- transfomer is used bcoz of its efficiency n ability
to conduct by tranfomation n elecrically and wide range of
voltage variations available ............it is used in
starting 3-phase induction motor..........variac in
laboratory, for voltage control in power system etc

Is This Answer Correct ?

1 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

what is the meaning of Ring Mean Unit in a substation or trasformer also tell me its oerpuse?

4 Answers NPTC, NTPC,

Good day everyone,currently in our premise we using 30kw slip ring motor with resistance bank which we use as forward and reverse at conveyor bar handling. So,my question is how do we calculate the resistance bank which is suit the motor. Kindly,assist me... thank you

0 Answers

am commissioning the trafo without connecting the neutral therefore unbalance will occur what is the alternative solution for this?

0 Answers L&T,

what should be distance between two electrical earthing pit as per i.e.e

13 Answers Badve,

why ups in kva ratings?

2 Answers

what is a pilot wiring and whys that called a pilot wiers

0 Answers

what is the speed of current

4 Answers

why ss stablity limit is more transient stablity limit?