where do we connect tap of tap changer, to H.V. side or
L.V.side? and why?
Answers were Sorted based on User's Feedback
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 |
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 |
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 |
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 |
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 |
what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks
who invented electricity?
why most of the substations are rated in multiples of 11?
What is “pu” in ee?
tell me about xlpe cable?
why it is not advisable to run low rating (19KVA) DG sets in parallel for long durations even though they are provided with droop ckts (QDC)
ON WHAT BASIS LOADS ARE CLASSIFIED AS RESISTIVE,INDUCTIVE AND CAPACITIVE LOADS?.GIVE PRACTICAL EXAMPLES FOR EACH
what is brushless generator?
why generator one end side star neutral point given? if this point not given what happen?
How eddy current generation support the idea of train braking?
I am going to appear for the RRB Chennai Section Engineer online exam. Please send me the question papers from 2001 to date to my mail id:upendrakrishna20@gmail.com,plz send me ,or send any other rrb papers plzzzzzzzzzzzzzzzzzz
what is the difference between on line UPS & INVERTOR