Transformer Modelling Flashcards
1
Q
Formula to find R% value?
A
Load loss or copper loss of TRF/TRF MVA
2
Q
what tolerance of impedance gives high sc current?
A
negative tolerance of impedance(trafo)
3
Q
what tolerance of impedance gives voltage dip and high losses?
A
positive tolerance of impedance(trafo)
4
Q
is it advisable to go for high impedance(i.e. 30%z) in trafo?
A
no because of high losses,high reactive power losses,higher voltage drop or dip during motor starting.
to mitigate this they higher compensation at LV side.
