Power system harmonic guidelines and how to evaluate the impact of customer generated harmonics

Saskpower's electric system, like that of many utilities in North America, is increasingly experiencing harmonic distortion problems. SaskPower has adopted harmonic limit standards along the guidelines proposed in the IEEE 519-1981 standard and revised in the IEEE 519-1991 standard. These limits are discussed and a detailed method is given to evaluate a customer's installation. Two example cases are presented including the evaluation of a gas pipeline compressor station installation and an oil field installation.<>