Effects of Reduced Voltage on the Operation and Efficiency of Electric Loads Volume 1

摘要

This two-volume report (Volume 2 is the Appendix) for RP1419-1 describes the efficiency of important power system loads as a function of voltage. RP1419 is divided into two phases: (1) quantifying the energy consumption of electric load components as a function of supply voltage and (2) providing a means for predicting energy changes as a function of voltage at the circuit level. In the first phase, a wide variety of loads have been tested at seven input voltages ranging from 100/200 to 126/252 volts (120/240-volt base). At each voltage level, equipment was required to provide identical outputs where appropriate (lighting equipment excluded). Furthermore, the effects of loading were considered. For loads without a well-quantified measure of output, such as electric ranges, appropriate measurable output quantities were developed. Subjective evaluation of performance was made if changes were obvious.