Why TAP changer provided in primary side of HT
transformer ? and why not in secondary?
- 9 Answers
- 46487 Views
- ABB, Reliance, I also Faced
- E-Mail Answers
Answer Posted / k1
There are two reasons; one reason from electrical and the
second one from practical point of view:
1- Low current on HV side makes tap changing smoother and
lowers stresses on the diverter switch.
2- HV windings are generally on the LV windings(consider
concentric HV and LV windings). Therefore the wiring of the
taps would be easier in comparison to the case where the
taps on LV side may be wired through HV windings.
| Is This Answer Correct ? | 7 Yes | 6 No |
Post New Answer View All Answers
how to calculate the power factor when instantaneous voltage and current has harmonics in it ?
please send me previose rrb junior engineer qustion papers
Why the field rheostat is adjusted such that the voltmeter reads 380V
diff b/w elcb and rccb
Why we are use dol starter up to 10 hp
Why squirrel cage motor can only use with low starting loads ?
Why is back emf used for a DC motor? Highlight its significance.
What happens to a line-frequency of high-frequency transformer when it is first energized/ re-energize?
1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor
What do you mean by a voltage transformer?
which pump used in WTP explain the function of VFD how to dtermine capacitorbank of capacity one plant
In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???
How to discuss the phase shift of transformer considering open delta?
is IS says that neutral should be brought to switch box. and this one is a recomended practice
In layman terms, what is the difference of Dielectric strength and dielectric constant when speaking of an insulating oil
