AI-4
VOLTAGE REGULATION—A measure of the ability of a generator to maintain a constant output
voltage from no-load to full-load operation. Expressed as a percentage of full-load voltage, the better
the regulation, the lower the percent.
WAVE WINDING—An armature winding in which the two ends of each coil are connected to
commutator segments separated by the distance between poles. The winding goes successively under
each main pole before reaching the starting point again.
WYE (Y)—A 3-phase connection in which one end of each phase winding is connected to a common
point. Each free end is connected to a separate phase wire. The diagram of this connection often
resembles the letter Y.
