1. Power Monitoring at Pantnagar Supersite Compound, June 23-24, 2011 Summary/Configuration

2. (10s points, with average (black), min (green), and max (red)
Voltage
(10s points, with average (black), min (green), and max (red)

3. Power Monitoring at Pantnagar Supersite Compound, June 23-24, 2011
Frequency
(10s points, with average (black), min (green), and max (red)

4. Histogram of Average (10s) Voltage

5. Histogram of Max (10s) Voltage

6. Histogram of Min(10s) Voltage

7. Dips and Swells (10s) Mostly <100ms dips (some ms) MEANINGLESS b/c dip/swell thresholds set to 207/253V

8. 5 TRANSIENTS recorded in ~1 day (transient sensitivity set to 20V) Transient sensitivity from 2 V to 20 V. To detect transients, a typical waveform is first determined through sampling. This waveform will change over time as the input waveform changes. An envelope around the typical waveform is created based on the sensitivity setting. If any point of a sampled waveform falls outside of the envelope, the waveform is recorded as a transient. Therefore, although the voltage varied over a large range, with numerous dips, generally the high frequency waveform appears pretty clean.

9. Flicker Instantaneous Flicker PF5, short-termflicker (Pst) and long-term flicker (Plt). Short-term flicker is a value measured over 10-minute intervals and long-term flicker is measured over two hours. A value of 1.0 indicates it is likely to notice a light bulb flickering

10. Harmonics Bar Graph (3rd, 5th, 7th order as % of voltage of primary frequency – 50Hz; average/min/max)

11. Harmonics Time series THD(blue), 3rd(red), 5th(grn), 7th(blk) order as % of voltage of primary frequency – 50Hz)

12. For Comparison: Residential Power in Colorado Voltage 10s points, with average (black), min (green), and max (red)

13. For Comparison: Residential Power in Colorado Frequency 10s points, with average (black), min (green), and max (red)