Why TAP changer provided in primary side of HT
transformer ? and why not in secondary?

Answer Posted / ram sumer

This depends on your use,for which perpose transformer is
been used. If the transformer is usde for long distance
transmission line i mean in delta to delta HT transformer
tap changer will be provided on primary side. To cover the
line losses which make a cause of voltage drop,when primary
side tap is changed in ratio of that tap position secondary
will also increase or decrease the voltage as you desire.If
you provide it on secondary side it will oppose the primary
voltage
But in case of distibution transformer i mean delta to star
tap changer is provided at secondary side.

Is This Answer Correct ?    4 Yes 14 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

before synchronizing an alternator,power factor is leading ,why?

1019


What is the dependency of stiffness on load angle??

836


how can we phase identification in a distribution line,how we recognise that which phase is coming for a house hold connection.help me............

1591


What is oscillator circuit?

680


what is the k var ratting of 1250kva

1515






How to work E.L.C.B and how to connect in circuit.

1530


Actuality I have at home electrical panel with 220v 50hz, and I want to converter from there to 110v 60hz, to wiring on the half of my house. Also I like to keep another half of my house with the original 220v 50hz. What is the best and safety way to do?

1359


What are the difference between CT/PT operated Meter and RRAMR Meter for HT/LT application?

2019


2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?

1597


Why PT voltages are measured with respect to ground? What do u mean by voltage or current polarized.

1926


No load tap changing transformer working

1222


Why we use ups battery and dsdb battery in thermal power plant

1644


what happens to the water pump if ground water level is slowly decreasing?our water pump is varying from no-load full-load due to this problem

1215


Hi,I am working in abroad for more than 3 years in a company operating with 11kv and 6.4 MW power. I need c licence in India,can I? some other says only i can get if i work for 2 years in india only! anybody kindly clarify by doubt.Thanks

1475


we have an energy meter in a capacitor bank panel, So should we consider it's readings as energy consumption on daily basis. (when capacitor bank doesn't have any energy losses)

1921