A new Epstein frame for core loss measurements at high frequencies and high flux densities . " IEEE Transactions on Energy Conversion " ( forthcoming ).
12.
Experimental power transformers in the 500 to 1, 000 kVA range have been built with liquid nitrogen or superconducting windings, which eliminates winding losses without affecting core losses.
13.
Silicon significantly increases the electrical resistivity of the steel, which decreases the induced eddy currents and narrows the hysteresis loop of the material, thus lowering the core loss.
14.
With lot many hurdles on the way Mithun recovers almost Rs . 3700 Cores loss by booking ministers for their misappropriation of funds but is left out with 300 Cores balance.
15.
For example, skin effect, proximity effect, and core losses increase " R " with frequency; winding capacitance and variations in permeability with frequency affect " L ".
16.
Core losses in motor laminations exposed to high frequency or non-sinusoidal excitation . " IEEE Transactions on Industry Applications " 40, no . 5 ( September October ) : 1325 1332.
17.
Air core coils have lower inductance than ferromagnetic core coils, but are often used at high frequencies because they are free from energy losses called core losses that occur in ferromagnetic cores, which increase with frequency.
18.
Toroidal cores are used despite the high manufacturing costs ( a great deal of manual work ) due to the low magnetic flux leakage ( MFL Leakage inductance ), low core losses and the good power density.
19.
Lamination core losses in motors with non-sinusoidal excitation with particular reference to PWM and SRM excitation waveforms . " IEEE Transactions on Energy Conversion " 20, no . 4 ( December ) : 836 843.
20.
The Q-factor of an inductor can increase at currents beyond saturation, as the fraction of back-emf voltage due to the core ( with pegged core loss ) becomes lower compared to the back-emf due to the intrinsic inductance ( the inductance the coil would have with no core at all ).
