Anderson, Paul M. Power Math Associates, Inc., San Diego, California.
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The change in voltage magnitude that occurs when the load (at a specified power factor) is reduced from the rated (or nominal) value to zero, with no intentional manual readjustment of any voltage control, expressed as a percent of nominal full-load voltage. Voltage regulation is a convenient measure of the sensitivity of a device to changes in loading. This concept is commonly used for transmission or distribution circuits as well as power supply equipment, including constant-voltage transformers, rectifiers, outdoor coupling capacitors, direct-current generators, induction frequency converters, synchronous generators, line regulation circuits, and thyristor converters. A common form of expressing voltage regulation in percent is shown in the equation below.
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