90 HANDBOOK OF ELECTRICAL ENGINEERING
Figure 4.2 Open circuit voltage versus exciter field voltage. The graph shows the effect on the saturation
curvature caused by changing the constant B over a wide range with the constant A fixed at 0.05.
Figure 4.3 Open circuit voltage versus exciter field voltage. The graph shows the effect on the saturation
curvature caused by changing the constant B over a wide range with the constant A fixed at 0.15.