where do we connect tap of tap changer, to H.V. side or L.V.side? and why?

Categories >> Engineering >> Electrical Engineering
Suggest New Category

where do we connect tap of tap changer, to H.V. side or
L.V.side? and why?

Question Posted / akriti15j

5 Answers
14885 Views
Vedanta, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

where do we connect tap of tap changer, to H.V. side or L.V.side? and why?..

Answer / mprajaneb

There are mainly two reasons for this. Normally tap
changers are used to improve the LV side voltages. Such
cases the taps are provided on the HV side.
LV voltage= (HV voltage*Nlv/Nhv). So by reducing the number
of turns of the hv side we can increase the lv side voltage.
Also current in hv side is less compared to lv side and
thus the arcing is less for hv side tap changers.

Is This Answer Correct ?

39 Yes

6 No

where do we connect tap of tap changer, to H.V. side or L.V.side? and why?..

Answer / thiyagarajan

because in lv sides current will be very high it is
difficult for the switching contacts carry higher currents
so tap changers will be always used in hv sides

Is This Answer Correct ?

18 Yes

3 No

where do we connect tap of tap changer, to H.V. side or L.V.side? and why?..

Answer / veerendra shah

always provide tap changer on hv side becouse
1.hv winding outside the lv winding easily we connect.
2.small current flow through it as compared to lv winding.
3.smoother control of the output voltage bcoz large turn ratio

Is This Answer Correct ?

8 Yes

2 No

where do we connect tap of tap changer, to H.V. side or L.V.side? and why?..

Answer / pappu

becuase number of turns on h.v. side is large than that of the l.v. side....also the hv winding is placed over the l.v. winding,thats why it is easily to tap

Is This Answer Correct ?

0 Yes

3 No

where do we connect tap of tap changer, to H.V. side or L.V.side? and why?..

Answer / mohamed

Normaly its connected in the primary side of the
transformer its not a matter of HV or LV why we use the tap
changer? in case of variation in the input output also
varied ( increase or decrease)we need to maintain the
constant voltage at the output by varing the tape we can
get the constant voltage at the output the AVR also used
for the same function

Is This Answer Correct ?

1 Yes

20 No

Post New Answer

More Electrical Engineering Interview Questions

in 3phase 50kva dg what is the full load current for single phase laod

6 Answers

what is the difference between delta-delta, delta-star transformer???

3 Answers

how many typetesting of transformers?

8 Answers ONGC,

While DG is on Load? we can start the capacitor bank?

3 Answers Inorbit,

25 kvar capacitor , how much current ? For 25 KVAR--Capacitor I = ?

3 Answers

Material commonly used in making transformer core is A cast iron B mild steel C high silicom steel D high carbon steel

1 Answers

Why we Specify Transformer rating 433 V Instead of 415V ?

8 Answers ABB, ERA, Uddans,

which type of motor complete it's one rotation in 30 day's.

2 Answers

Three phase star connected PT transformer primary side one phase fuse is blown what will be the output in secondary side(Secondary side also three phase star connected)

1 Answers

I am final year b.tech student..i applied for gate but i am not interested any of my engineering subjects. i am interested in management wise.. is my option correct after b.tech..

1 Answers

why are maintine power factor 0.99 in Eb line? why are used capacitor bank in Eb line? what is the purpose capacitor bank?

4 Answers TNEB Tamil Nadu Electricity Board,

he compression ratio for a petrol engine generally lies between

0 Answers Caterpillar,

For more Electrical Engineering Interview Questions Click Here