Analysis of power consumption and losses in relation to supply voltage levels

This paper is focused on the effects of active and reactive power consumption and losses depending on voltage level variations around the normal (rated) voltage level. Supply voltage variations from rated voltage affect both power consumption and losses in the network. Focus is put on load response to the voltage change, while motor-type and mixed residential load is observed. Relations between voltage variation and load power consumption are suggested. Comparisons based on literature as well as classical theory and on-site measurements are presented.