Reactance influence on 6-phase rectifiers

CONVENTIONAL METHODS OF calculating rectifier voltage regulation are valid only if the angle of overlap is less than 360 degrees divided by the number of phases. With larger overlap angles, any a-c reactance common to two or more simple rectifiers introduces an angle of inherent delay, even though the rectifiers are operated without phase control. This inherent delay reduces the direct voltage and, therefore, increases the voltage regulation.