In a transformer in any wndg interturn capacitance is present so to the first turn and the last turn in wndg can we connect two plates parallel so that area increases and capacitance is improved and power factor can be improved
It will cause oscillations in the system with small power factor improvement.
Correct...,depending on size(area) and distance between plates, but not practical and economical.....
Theoretically, it could work, but the capacitance between plates would be too small to have any practical benefical effect on the power factor of a power transformer.
Not practical, since there are more dynamics in transformer which are not predictable
Not practical. Where do you place the setup?
The main hurdle in a transformer is the insulation. When you connect the two plates to the first and last turns of the winding, the voltage impressed between the plates will be the full voltage. If the spacing between the plates is not sufficient, it results in a short circuit of the winding. So you have to maintain the the required distance between the plates as pointed by Mr. Bhupendra. In that case what about the insulation between this new setup and other non current carrying parts of the machine? More over the area of the plates required will be too large to nullify the winding inductance. You have to increase the size of the transformer tank, which increases all the other costs like oil, etc.
Yes it could work; but the overall attempt at reducing apparent power in order to improve pf will be negligible by this method. Rather automatic power factor correction is good alternative. This uses microprocessor-controlled system designed to continuously regulate the power factor to the specified levels by adjusting the amount of kVAr in relation to the variations in load. Note that pf = kW/kVA and kVA = √(sqkW +sqkVAr). kVAr is a function of pf.
as transformer is an inductive circuit,when we try to include a capacitor to improve its working power factor it may lead to oscillations and few more losses...
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