Legend: : Formula | : Limits, Range | : Assumption, etc.

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Sections: Guaranteed Losses | Windings | Magnetic Circuit | Efficiency | Regulation | Tank & Temp. Rise

Guaranteed Losses

Item A. Total Loss at Full Load, W
W = KVA(1 - %e) / %e
Where: KVA = KVA rating
%e = per cent efficiency at full load
For the per cent efficiency at full load, %e, see performance table.

Item B. Total Loss at ¼ Load, W_¼
W_¼ = KVA(1 - %e_¼) / %e_¼
Where: KVA = KVA rating
%e_¼ = per cent efficiency at ¼ full load
For the per cent efficiency at full load, %e_¼, see performance table.

Item C. Full Load Copper Loss, W_Cu
W_Cu = W_FL - W_¼ / (1 - ¼²)
Where: W_¼ = total loss when the load is ¼KVA
¼ = ¼ times the full load rating
For the per cent efficiency at full load, %e_¼, see performance table.

Item D. Full Load Core Loss, W_Fe
W_Fe = W_FL - W_Cu

Item 1. Volts per turn from formula, Vt_formula
Vt_formula = 1/c x ÖKVA

Volts per turn actual, Vt_actual
Will be solved after determining the finalization of the Total Number of turns, using: Vt_actual = V_H.T./T_H.T.

Items 02 - 23

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