
431
16
Quality of Power
Although the quality of power has recently become a part of the industry standards
for electrical power that utility companies and other power providers are expected
to deliver at a user’s terminals, the term quality of power has no single univer-
sally accepted denition and measurement at present. However, organizations such
as the Institute of Electrical and Electronics Engineers (IEEE), the International
Electrotechnical Commission (IEC), and the North American Reliability Council
have developed working denitions that include the following key performance
measures:
• Transient voltage deviations during system faults ...