Chapter 40
Power Quality Monitoring
40.1 Selecting a Monitoring Point 40-1
40.2 What to Monitor 40-2
40.3 Selecting a Monitor 40-2
Voltage • Voltage Waveform Disturbances • Current Recordings • Current Waveshape Disturbances • Harmonics • Flicker • High Frequency Noise • Other Quantities
40.4 Summary 40-7
Patrick Coleman
Alabama Power Company
Many power quality problems are caused by inadequate wiring or improper grounding. These problems can be detected by simple examination of the wiring and grounding systems. Another large population of power quality problems can be solved by spotchecks of voltage, current, or harmonics using hand held meters. Some problems, however, are intermittent and require longer-term monitoring for solution.
Long-term ...
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