This paper presents a novel intelligent power quality analyzer, which can be used to analyze the collected dynamic data
using the modern uncertainty principle. The analyzer consists of components used for data acquisition, communication,
display, storage and so on, and has some advantages including strong computing ability, good on-line performance, large
storage capacity, high precision, and user friendly interface, etc. In addition, the reliability of measurement results is
evaluated according to the international standards; while the uncertainty principle of the international survey is adopted
for the evaluation of an electrical energy quality analyzer for the first time, it offer a perfect GB code in addition to the
evidence to a perfect GB code.