This report gives results of a recently completed data collection and analysis project investigating electric power quality of two isolated utility systems in Alaska. This is the second phase of a similar effort reported in 1984 which provided the first comprehensive power quality data from four small Alaskan communities. In this report, second generation instrumentation is described and comprehensive data and data analyses are presented. These data are important because of the increased use throughout Alaska of electrical and electronic equipment that may be damage by power system disturbances.Abstract - iv
1.0 Introduction - 1
1.1 Site descriptions - 1
1.2 Power quality definitions and disturbance analyzzer outputs - 2
2.0 Second Generation Instrumentation - 4
2.1 Hardware - 4
2.2 Software development and utilization - 8
3.0 Power System Disturbance Data - 9
3.1 Kotzebue site - 10
Figure Descriptions - 10
3.1.1 808: - 10
3.1.2 626: - 13
3.1.2.1 Impulse - 13
3.1.2.2 Sag - 16
3.1.2.3 Surge - 18
3.1.2.4 Frequency Disturbances - 21
3.1.2.5 Voltages - 23
Figures K1-K85 - 24-66
3.2 Tazlina site - 67
Figure Descriptions - 67
3.2.1 808: - 67
3.2.2 626: - 71
3.2.2.1 Impulse - 1
3.2.2.2 Sag - 74
3.2.2.3 Surge - 77
3.2.2.4 Frequency Disturbances - 81
3.2.2.5 Voltages - 83
Figures T1 - T102 - 85-135
3.3 Power system disturbance data summary - 136
3.3.1 Kotzebue site - 136
3.3.2 Tazlina site - 142
4.0 Conclusions - 147
5.0 Acknowledgements - 154
6.0 References - 154
7.0 Selected Bibliography - 155
8.0 Appendix
