1. Creating Trends, Histograms, Profiles, and Statistics using PQView Express

2. 2 © 2008 Electrotek Concepts, Inc. All rights reserved. Getting Started Start PQView Express

3. 3 © 2008 Electrotek Concepts, Inc. All rights reserved. Getting Started Click on the “Open”command button. Or, use the menu command File|Open Power Quality Database

4. 4 © 2008 Electrotek Concepts, Inc. All rights reserved. Open PQViewDemo.MDB Database Open the PQViewDemo.mdb demonstration database. This database is not installed with PQView by can be downloaded from www.pqview.com.www.pqview.com –In this example, the database is located here: C:\Program Files\PQView Express\Databases\PQViewDemo.mdb

5. 5 © 2008 Electrotek Concepts, Inc. All rights reserved. Open PQ Event Viewer Click on the “View Trends” command button. Or, use the menu command View|Trends.

6. 6 © 2008 Electrotek Concepts, Inc. All rights reserved. Steady State Trends Tool

7. 7 © 2008 Electrotek Concepts, Inc. All rights reserved. Steady State Trends Tool This tool is used more than just trends: –It can create trend charts, histogram charts, statistical tables, compliance percentages, and profile charts.

8. 8 © 2008 Electrotek Concepts, Inc. All rights reserved. PQView Channel and Formats Channel –Unique combination of quantity (voltage, current, power, energy, etc.), characteristic (rms, THD, PF, etc.), and phase (A, B, C, AB, BC, CA, N) Formats –Values: consist of time stamp and measurement for a channel. Also known as samples and snapshots. –Envelope: consist of minimum, average, and maximum in regular intervals

9. 9 © 2008 Electrotek Concepts, Inc. All rights reserved. Reset Options Reset PQDA’s options in case there are non-default preferences set from another tutorial lesson.

10. 10 © 2008 Electrotek Concepts, Inc. All rights reserved. Reset the date range to “All Data”

11. 11 © 2008 Electrotek Concepts, Inc. All rights reserved. First Trend Build an rms voltage trend for the substation site for phase A. Creates Chart

12. 12 © 2008 Electrotek Concepts, Inc. All rights reserved. Resulting Trend

13. 13 © 2008 Electrotek Concepts, Inc. All rights reserved. Three Lines for Three Formats

14. 14 © 2008 Electrotek Concepts, Inc. All rights reserved. Steady-State and PASS Data Sources Values (Snapshots) –Computed characteristics from waveforms recorded with PASS SS Wave measurement Minimum Envelope –Minimum values of PASS SS RMS measurement Average Envelope –Average values of PASS SS RMS measurement Maximum Envelope –Maximum values of PASS SS RMS

15. 15 © 2008 Electrotek Concepts, Inc. All rights reserved. Steady-State and PES Data Sources Values (Snapshots) –Computed characteristics from waveforms recorded with PES Snapshot measurement Minimum Envelope –Minimum values of PES RMS Strip Chart measurement Average Envelope –Average values of PES RMS Strip Chart measurement Maximum Envelope –Maximum values of PES RMS Strip Chart measurement

16. 16 © 2008 Electrotek Concepts, Inc. All rights reserved. Steady-State and RPM Data Sources Values (Snapshots) –Flicker measurements Minimum Envelope –Minimum values of long-term summaries Average Envelope –Average values of long-term summaries Maximum Envelope –Maximum values of long-term summaries

17. 17 © 2008 Electrotek Concepts, Inc. All rights reserved. Steady-State and PQDIF Data Sources All steady-state series must have tagQuantityTypeID=ID_QT_VALUELOG and… –Values (Snapshots) tagValueTypeID = ID_SERIES_VALUE_TYPE_VAL –Minimum Envelope tagValueTypeID = ID_SERIES_VALUE_TYPE_MIN –Average Envelope tagValueTypeID = ID_SERIES_VALUE_TYPE_AVG –Maximum Envelope tagValueTypeID = ID_SERIES_VALUE_TYPE_MAX

18. 18 © 2008 Electrotek Concepts, Inc. All rights reserved. Steady-State and Encore Series System Values (Snapshots) –DataNode 5571: Waveform Snapshots –DataNode 5530: Flicker Pst, Flicker Plt, I Demand, P Integrated, Q Integrated, S Integrated Minimum, Average, and Maximum –All other logs from DataNode 5530, 5540, 5560, 5571

19. 19 © 2008 Electrotek Concepts, Inc. All rights reserved. Plot Envelope Average Only

20. 20 © 2008 Electrotek Concepts, Inc. All rights reserved. Mark Histogram Checkbox

21. 21 © 2008 Electrotek Concepts, Inc. All rights reserved. Histogram Notes The minimum and maximum values of the histogram’s x-axis will match the y-axis of the trend. Only instantaneous format values and average values will be in the histogram; minimum and maximum format values are not analyzed by this tool. –Use the “Steady-State Statistics” Tool to create histograms of minimum and maximum values

22. 22 © 2008 Electrotek Concepts, Inc. All rights reserved. Select min/avg/max formats and create trend chart Then, export to Microsoft Excel

23. 23 © 2008 Electrotek Concepts, Inc. All rights reserved. Envelopes with Time Stamps

24. 24 © 2008 Electrotek Concepts, Inc. All rights reserved. Select All Three Phases and Export to Excel

25. 25 © 2008 Electrotek Concepts, Inc. All rights reserved. Excel shows nine series for the min/avg/max for three phases

26. 26 © 2008 Electrotek Concepts, Inc. All rights reserved. Change an Option Choose to not show every record in Channel Table

27. 27 © 2008 Electrotek Concepts, Inc. All rights reserved. Option Changed Channel lists are shorter because channels with no data are not being shown.

28. 28 © 2008 Electrotek Concepts, Inc. All rights reserved. Deleting Data Points Let’s delete a voltage sag.

29. 29 © 2008 Electrotek Concepts, Inc. All rights reserved. Delete Voltage Sag Points Toggle the eraser icon button, then click on the voltage sag.

30. 30 © 2008 Electrotek Concepts, Inc. All rights reserved. Voltage Sag Data Points Removed Remember to toggle the eraser icon button to turn off editing mode.

31. 31 © 2008 Electrotek Concepts, Inc. All rights reserved. Deleted Data Points Data points deleted from the charts in this fashion are not deleted from the database.

32. 32 © 2008 Electrotek Concepts, Inc. All rights reserved. Trend Chart Options

33. 33 © 2008 Electrotek Concepts, Inc. All rights reserved. V THD Trend Create a voltage THD trend for phase A.

34. 34 © 2008 Electrotek Concepts, Inc. All rights reserved. Plot Min/Avg/Max Voltage THD for Phase A Note that THD automatically is formatted in percent. We could delete the THD measurement at 4.8%, but let’s try to filter it instead.

35. 35 © 2008 Electrotek Concepts, Inc. All rights reserved. Min/Max Filter Set the upper limit to 4%, then re plot the graph again.

36. 36 © 2008 Electrotek Concepts, Inc. All rights reserved. V THD Chart with 4% Filter Enabled

37. 37 © 2008 Electrotek Concepts, Inc. All rights reserved. Plot Voltage THD for Two Sites Make sure all four formats are enabled. Reset the filter as well.

38. 38 © 2008 Electrotek Concepts, Inc. All rights reserved. One Window is Created for Each Sites

39. 39 © 2008 Electrotek Concepts, Inc. All rights reserved. Note about Multiple Graphs Up to 32 steady-state trends can be open at a time. Channels that do not exist for a site are not graphed.

40. 40 © 2008 Electrotek Concepts, Inc. All rights reserved. Plot Both Sites on One Chart

41. 41 © 2008 Electrotek Concepts, Inc. All rights reserved. Plot Frequency for All Sites

42. 42 © 2008 Electrotek Concepts, Inc. All rights reserved. Export V THD Statistics for All Sites

43. 43 © 2008 Electrotek Concepts, Inc. All rights reserved. Frequency Statistics

44. 44 © 2008 Electrotek Concepts, Inc. All rights reserved. Enable Additional Statistics Enable histogram “cumulative probability” statistics

45. 45 © 2008 Electrotek Concepts, Inc. All rights reserved. More Statistics

46. 46 © 2008 Electrotek Concepts, Inc. All rights reserved. Additional Statistics on a Single Histogram

47. 47 © 2008 Electrotek Concepts, Inc. All rights reserved. Selecting More than One Characteristics for a Site Select three-phase Real and Apparent Power for the substation site at the same time. Use the key to multi-select in the channel list box.

48. 48 © 2008 Electrotek Concepts, Inc. All rights reserved. Choose to Plot All Channels on one Chart 1. Make sure all four formats are enabled. 2. Then create a Multi Axes Single Site Chart

49. 49 © 2008 Electrotek Concepts, Inc. All rights reserved. Multi Axes Chart

50. 50 © 2008 Electrotek Concepts, Inc. All rights reserved. Both Channels on One Chart

51. 51 © 2008 Electrotek Concepts, Inc. All rights reserved. Same Graph Using MW and MVA

52. 52 © 2008 Electrotek Concepts, Inc. All rights reserved. Change Channel Grouping Preference

53. 53 © 2008 Electrotek Concepts, Inc. All rights reserved. Export to Microsoft Word Select RMS Voltages and Voltage THD Channels for all four sites at the same time. Use key to multi-select in the Channel List box. Then press the Microsoft Word icon.

55. 55 © 2008 Electrotek Concepts, Inc. All rights reserved. Export to HMTL Select RMS Voltages and Voltage THD Channels for all four sites at the same time. Use key to multi-select in the Channel List box. Then press the HTML icon.

57. 57 © 2008 Electrotek Concepts, Inc. All rights reserved. Aggregation Ask for the maximum three-phase power for the substation 5530.

58. 58 © 2008 Electrotek Concepts, Inc. All rights reserved. Aggregation Select to compute the maximum value per day

59. 59 © 2008 Electrotek Concepts, Inc. All rights reserved. Maximum Three-Phase Power per Day

60. 60 © 2008 Electrotek Concepts, Inc. All rights reserved. Aggregating Envelopes If your data was recorded as a min/avg/max envelope, then be sure to select the appropriate format when aggregating. Select all three envelope formats Then try the special aggregating function named “Min Avg Max.”

61. 61 © 2008 Electrotek Concepts, Inc. All rights reserved. Minimum, Average, Maximum per Day

62. 62 © 2008 Electrotek Concepts, Inc. All rights reserved. “Percentiles” Function

63. 63 © 2008 Electrotek Concepts, Inc. All rights reserved. “Quartiles” Function

64. 64 © 2008 Electrotek Concepts, Inc. All rights reserved. Aggregation Notes Aggregation Functions –minimum, average, maximum, standard deviation, count, and Min Avg Max, Percentiles, Quartiles, IntervalChannel Aggregation Intervals –second, minutes, hours, day, week, month, quarter, year

65. 65 © 2008 Electrotek Concepts, Inc. All rights reserved. Line Type Preference Note that you have control of the line type for each format.

66. 66 © 2008 Electrotek Concepts, Inc. All rights reserved. Plot 3rd, 5th, and 7th Harmonic (I3,I5,I7) Amps for the Substation 5530

67. 67 © 2008 Electrotek Concepts, Inc. All rights reserved. Trend of I3, I5, I7

68. 68 © 2008 Electrotek Concepts, Inc. All rights reserved. Other Options: Show Grid Lines

69. 69 © 2008 Electrotek Concepts, Inc. All rights reserved. Other Options: Plot Line Gaps

70. 70 © 2008 Electrotek Concepts, Inc. All rights reserved. Other Features Site Name Alias option –Alternate name for site, just as with PQWeb Set Y-Axis Max and Set Y-Axis Min Include invalid option –Means to not plot measurements with an invalid status Quick Pick command button –Automatically selects all of the sites selected by the Select Sites form. Plot formats in different colors

71. 71 © 2008 Electrotek Concepts, Inc. All rights reserved. Profile Charts

72. 72 © 2008 Electrotek Concepts, Inc. All rights reserved. Event Links