Powerpad Tutorial

8/19/2019 Powerpad Tutorial

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Tutorial for using the PowerPad with DataView

©2002-2003 Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments

DataView Professional Version 2.00.03

July 25, 2003

1 How do I Connect to the PowerPad?.................................................................................................2 2 How do I Setup the PowerPad? ........................................................................................................5 3 How do I View a Trend Recording?...................................................................................................7 4 How do I View a Photograph?.........................................................................................................18 5 How do I View an Alarm?................................................................................................................23 6 How do I View a Transient? ............................................................................................................ 30 7 How do I View an EN50160 Voltage Quality Report?.......................................................................39 8 How do I View a Waveform?...........................................................................................................52 9 How do I View Harmonic Data in Real-time? ...................................................................................56 10 How do I View Harmonic Data as a trend?...................................................................................59

11

How do I View Power Data in Real-time?.....................................................................................68

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How do I View Power and Energy Data for one time period? .......................................................73

13 How do I View a Power and Energy Data as a trend? ..................................................................79 14 How do I View a Phasor Diagram? ..............................................................................................89 15 How do I Create a New Report? ..................................................................................................91

(This .pdf file is best viewed with Adobe® Reader® version 6.0 or higher)


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1 How do I Connect to the PowerPad?

1.1 Start DataView Professional:

1.2 Select “Open Instrument Control Panel”. If the above menu is not visible, select from the“Instrument” menu, “Control Panel”:

1.3 The above menu might be visible. If so, set the communications rate to the same as that set on the

PowerPad. You can set the rate on the PowerPad by selecting the setup button , thenselecting “Baud Rate”, then adjusting the speed, then hitting the enter key, the key on thePowerPad that has an arrow. Select the Communications port, which is connected to thePowerPad. Press “OK”.


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1.4 You might see the above menu. If so, select the PowerPad in both parts of the screen, and press“OK”. You should now see:

1.5 You can move the “Waveform” and “Harmonic Bar” screens, or close them. When you exit thePowerPad program, it asks if you want to save the layout. If you say yes, the next time you start thePowerPad program you’ll see the same arrangement of windows as you last saved. You can alsoload and save window layouts, with the “File” menu, “Load Layout” and “Save Layout” options.


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1.6 If the connection does not seem to occur:

1.7 Select from the “Instrument” menu, “Connect” and try to find the correct communications port. Also,the connection to the PowerPad can become slightly disconnected and should be pushed back intoplace.


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2 How do I Setup the PowerPad?

2.1 After connecting to the PowerPad, select from the “Instrument” menu “Configure” to get to thefollowing screen:

2.2 Indicate your preference for reactive energy calculation. Indicate the expected line frequency. The“Nominal Frequency” is only used for power calculations, and does not affect the automaticfrequency tracking of the PowerPad. The “Current Sensor” should match the sensors you haveconnected. The sensors connected to the different lines should all be the same. The “ConnectionType” is used to indicate the number of phases you are using. The PowerPad will mostly ignore thereadings it gets from phases you are not using.

2.3 You can set the clock of the PowerPad from this screen.2.4 You can set a Voltage Transformer Ratio. This value is used by the software to multiply all voltage

reading received from the PowerPad. So, for instance, if there were a Voltage RMS of 120V, andthe “Output” box has “10” and the “Input” box has “1”, the various screens that show Voltage RMSwould show 1200V. The PowerPad does not use this ratio. The software uses and remembers thisratio.

2.5 Two of the Current Probe types have a Current Ratio. The ADA (Adapter) Gives a ratio of Primary

to Secondary, as does the MN193 Probe when the current rating is 5A. The PowerPad uses andremembers these ratios.

2.6 Select the “PowerPad Display” tab to change the display of the PowerPad.


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2.7 All of the choices on this screen change what is seen on the PowerPad’s display, not the software.


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3 How do I View a Trend Recording?

3.1 After connecting to the PowerPad, select from the “Instrument” menu “Configure”, then select the“Recordings” tab to get to the following screen:

3.2 Select one of the four configuration numbers. Each configuration stores a recording profile, which isa group of parameters to be saved in a recording.

3.3 Choose the parameters you want to store.


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3.4 If the harmonic values you want to record include harmonic number 1, the recording will include theabsolute values, volts, amps, and watts, of each harmonic, in addition to percent of harmonic 1.Otherwise, it will only include the percent of harmonic 1.

3.5 Choose a name, up to 8 characters, for the recording, when you want it to start and end, and theintegration period. The integration period represents one datapoint in the recording, which is an

average value over that entire period. For instance, Vrms with an integration period of 1 minutewould show, for each minute, the average Vrms.


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3.6 Note, that the maximum recording time changes, when the integration period changes.3.7 Press “OK”.

3.8 Confirm that you want to schedule the recording.


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3.9 The recording is now scheduled. Note that the PowerPad must remain on until the recording iscompleted, otherwise it loses its schedule.

3.10 After the recording is complete, to download, select from the “Instrument” menu “Data” to get to thefollowing screen:


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3.11 Find the recording you want to download, from the list, and select it:


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3.12 Press “Download to Database”. You’ll see the completion status of the download.

3.13 When it is complete select a name for database, press “Save”:

3.14 Enter the session properties you want to appear on the last page of the report.


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3.15 Press “OK”.3.16 Close the Data screen.3.17 Close the PowerPad screen.

3.18 Press “Yes” and then “OK” in the next screen to get to the following screen:


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3.19 The page numbers of the data depend on what parameters were being recorded. In this example,the harmonic spectrum for Vrms is on page 5:


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3.20 The top graph shows the Vrms trends. Pressing and releasing the left mouse button in the graphmoves the vertical time cursor. The bar chart toward the bottom of the page shows the percentagevalue of Vrms harmonic 1, 3, 5, and 7, each for lines 1, 2, and 3. The arrow is pointing to Vrmsharmonic 3 for line 2. Harmonic 1 is always 100%.

3.21 A similar chart, showing the harmonic values in volts, instead of in percent of harmonic 1, is shown

on page 8:


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3.22 You can add to the report by following the steps in section 15. Generally when you are asked forthe name of a database, you’ll want to use the same database as you already loaded into thereport you are editing.

3.23 You can save the changes you made to the template by selecting from the “File” menu, “Save asTemplate”, and choosing a new file name.

3.24 When you open a new database that you download from the PowerPad, you can use the newtemplate, instead of the default. You should make sure that the template is suitable for the type ofdata you are downloading. Generally, it is only suitable if it includes similar channels to thedatabase you used in the template you saved.


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4 How do I View a Photograph?

4.1 To take a photograph, on the PowerPad, press the camera button for 3 seconds or more.4.2 On the PowerPad software, after connecting to the PowerPad, select from the “Instrument” menu

“Data”, then select the “Photographs” tab to get to the following screen:

4.3 Select the Photograph you want to download, and then select “Download to Database”.


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4.4 Select the name you want, select “Save”.4.5 Enter the Session Properties that you want to appear on the last page of the report.

4.6 Press “OK”.4.7 Close the “Data From PowerPad” screen. Close the “PowerPad” screen.

4.8 Select “Yes”. Press OK at the next screen.


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4.9 Page 1 shows the Voltage phase-to-neutral waveforms at the time the photograph was taken. Page2 shows the current. Page 3 shows the Voltage phase-to-phase. Page 4 shows the Power valuesat the time. Page 5 shows the Session Properties that were entered at the time of the download.


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5 How do I View an Alarm?

5.1 After connecting to the PowerPad, select from the “Instrument” menu “Configure”, then select the“Alarms” tab to get to the following screen:

5.2 There are a variety of alarm conditions that can be part of the setup. Some give a choice ofphases, “3L” for any of lines 1, 2, 3, “N” for neutral current, “Sum” for the sum of phases. Somegive a choice of greater or less than. Those that measure a harmonic value, give a choice ofharmonic number.

5.3 The threshold indicates a value, which if exceeded causes a possible alarm event to be started.5.4 The “Hysteresis” value is a percent of the threshold, which causes the alarm event to end. If the

threshold were 100 volts and the hysteresis were 1%, the event would begin if the voltage were tobe higher than 100 volts, and would end when the voltage came down to 100 minus 1%, which is99 volts. If the length of the event were equal or greater than the duration, an alarm event would bestored.

5.5 Alarm events are only searched for when the “Disable All Alarms” is unchecked and written to thePowerPad.

5.6 Any of the changes made to the screen only take effect when the “OK” button is pressed, which

causes the information in the setup tabs to be written to the PowerPad.


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5.7 The status screen shows when an alarm search is in progress.5.8 To see the alarm events, select from the “Instrument” menu, “Data”.5.9 Then select the “Alarms” tab.

5.10 All of the alarm events stored on the PowerPad are shown. The scroll bar can be used to see theevents that did not fit on the screen.

5.11 To see just those events that pertained to Line 1, either Voltage Line 1 or Current Line 1, press “1”:


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5.12 “Multi-Phase” shows other events such as those caused by line frequency.5.13 For each event, there is the phase, the harmonic number if it was a harmonic being measured,

what was being measured, and start time, the duration of the event, and the value.5.14 The value shows the maximum value seen during the event for those events that had a greater

than condition, or the minimum value seen during the event for those events that had a lesser than

condition.5.15 To create a report of one or more alarm events, select the events you want to download, then

press “Download to Database”:


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5.16 Choose a name for the database:

5.17 Press “Save”.5.18 Enter the session properties you want to appear on the last page of the report.


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5.19 Press “OK”.5.20 Close the “Data From PowerPad” screen.5.21 Close the “PowerPad” screen.



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6 How do I View a Transient?

6.1 After connecting to the PowerPad, select from the “Instrument” menu “Configure”, then select the“Transients” tab to get to the following screen:

6.2 Select the maximum number of transients to store. The PowerPad can store 50 transients. You canremove existing transients in the “View Transients” screen.

6.3 Select a name for the transient search, and the start time and end time of the search. The searchcan end earlier if the number of transient events has reached the “Max number of Transients tofind”:


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6.4 Set the thresholds. The thresholds determine when a transient event is found. If a datapoint in awaveform differs from the same datapoint in the previous cycles by more than the threshold, atransient event is found. The percentage is of constants, not the actual values of the waveforms.100% of voltage is always 480volts. 100% of current depends on the type of current probe. Press“OK”:

6.5 Press “Yes”:


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6.6 To view the transient, select from the “Instrument” menu, “Data”.6.7 Select the “Transients” tab:6.8 Select the Transients you want to download:


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6.9 Select “Download to Database”:

6.10 Press “Save”.


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6.12 Press “OK”.6.13 When the downloads are complete, close the “Data From PowerPad” screen.

6.14 Close the “PowerPad” screen.



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6.16 The voltage and current waveforms at the time of the first transient is shown. One waveform beforethe transient event, the waveform during the event, and the two waveforms after the event areshown. The gray vertical band shows where the transient event occurred.

6.17 The micrograph below the channel list shows in detail, 32 datapoints that include the transientevent. The channel properties box to its right shows the magnitude of the difference between

datapoint of the transient event compared with the same datapoint of the previous cycles. Thenumber of the data point of the transient is shown. There are 256 datapoints per cycle, and 32datapoints shown in the micrograph.

6.18 Page 2 shows individual voltage cycles. Page 3 shows current cycles. You can select individualwaveforms to see in greater detail what happened before, during, and after the transient event.


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6.19 Since more than one transient event was downloaded to the same database, it is possible, on page1 to see how they relate to each other in time. Go to page 1, click with the left mouse button, insidethe main graph, and then press the “Zoom All” button, or select from the “Zoom” menu, “Zoom All”:


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6.20 The zoom in and zoom out buttons, along with the step left and right, and pan left and right, can beused to focus on parts of the graph. Selecting a channel from the channel list zooms and pans thedisplay to show just that channel. When panning and zooming, looking at the start and end timesshown on the graph, and comparing them with the times on the channel lists, helps identify how theparts of the graph relate to each other.




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7 How do I View an EN50160 Voltage Quality Report?

7.1 After connecting to the PowerPad, select from the “Instrument” menu “Configure”, then select the“EN50160” tab to get to the following screen:

7.2 The reference voltage is the midpoint of the expected voltage range. The EN50160 test defines thisvoltage as 230 volts. To adapt the test to 110-120volt systems, 115 volts would be the equivalent. Ifyou select one of the preset voltages, the frequency is also set. Otherwise, just the voltage isstored now, and the frequency will be asked for when you later download the test results.

7.3 The “Max Voltage Variation in 100MS” is used to set alarms conditions that measure if the voltageever goes above or below the reference voltage by that percent for 100 milliseconds or more.

7.4 One of the four recording configurations used to setup recordings needs to be replaced to setupthe EN50160 test. So set “Select a Recording Configuration To Be Replaced” to a recordingconfiguration number that you don’t need to refer to again.

7.5 Similarly, since two alarm conditions need to be setup to measure voltage variations, select two outof the ten alarm condition numbers that you don’t need to keep.

7.6 The standard time for the EN50160 test is 1 week. You can set other starting and ending times.The recording always uses a 10-minute averaging period.

7.7 When you’ve finished setting up the EN50160 test, press “Write Changes and Start EN50160Test”:


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7.11 You can set the expected voltage and frequency. However, the alarms that have been storedalready are based on the values given when the test was scheduled.

7.12 You can set the percent above and below normal to accept for voltage and frequency. Thoseranges are expected to account for 95% or more of the 10-minute periods of the test. The “2

nd %

Above/Below Nominal Hz” is a range that is expected to account for 100% of the 10-minuteperiods.

7.13 The percentage values for THD (Total Harmonic Distortion), Vunb (Voltage Unbalance), long termflicker, and the harmonic orders 2 to 25, represent values that the channels should be at or belowfor 95% or more of the 10 minute periods of the test.

7.14 After making any changes to the parameters, select “OK”:


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7.15 Now select “Download to Database”:


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7.16 If there were already a database open, it is better to “Select Another File”.

7.17 Select a name for the downloaded database.7.18 Enter the session properties you want to appear on the last page of the report.

7.19 Press “OK”.


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7.20 A summary appears of each parameter that is part of the EN50160 test, followed by whether thevoltage quality passed or failed that test. The over EN50160 test only passes if each parameterpasses. Each parameter needs to be within range for 95% of the 10-minute periods. Each 10-minute period is an average of the parameter within that 10 minutes. An exception is the VoltageAlarm test, for which even a 100-millisecond period of the voltage being out of range is enough to

fail that 10-minute period. Another exception is the second, wider, frequency range, for which thefrequency has to be within for 100% of the 10 minute averaging periods.

7.21 To see the full report, close the “Data From PowerPad” screen.7.22 Close the “PowerPad” screen.



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7.24 The same summary shown before is shown again here, with a bar chart preceding it. The bar chartshows the percent of the 10-minute periods that were within range for each of the parameters. Thenumbers above the parameter names are the phase number. For example, the arrow points toVoltage harmonic 14, phase 1. Further pages have more details.


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7.25 Page 3 shows Vrms for each 10-minute period. Type top box is the graph, which shows the 3 linesof Vrms, along with lines indicating the upper and lower limits.

7.26 Below the graph is a channel list. Clicking on one of the channel list lines, selects that channel,causing the channel on the graph to be shown with little black squares to highlight it. It also causesother frames on the page to show data related to that channel.

7.27 Below the channel list frame is the channel information frame. It shows what the limits were for thatchannel, and how many, and what percent of the datapoints were within that range. It also shows ifthere was a voltage ratio. A voltage ratio says that the voltage reaching the PowerPad was dividedby that ratio, so the chart multiplies by that ratio to show the original voltage.

7.28 Below the channel information frame is the exception list. It shows, for each channel, the durationswhen the channel was not within range, and the average, minimum, and maximum values duringthat duration.

7.29 Page 4 shows the alarm events:


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7.30 The alarms are the times that the voltage was not within the voltage limits. The charts show thetrend of 10-minute averages along with the individual alarms. Each alarm is a duration, and thevoltage value is either the minimum or maximum voltage seen during that duration.

7.31 Page 5 shows voltage unbalance, page 6 shows frequency, page 7 shows total harmonicdistortion, page 8 shows long term flicker. Page 9 shows a summary of the alarms:


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7.32 For each 10-minute period, if the voltage was outside the acceptable range, for more than 100milliseconds, as stored by the alarms, a 1 is shown, otherwise a zero is shown.

7.33 Page 10 shows the harmonic spectrum for phase 1:


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7.34 If you click the left mouse button within the graph on top of the page, you select a datapoint, whichis a 10-minute period. For that 10-minute period, the harmonic orders 2 through 25 are shown inbar graph form lower on the page.

7.35 Pages 11 and 12 are similar to page 10, except they show phases 2 and 3.7.36 Pages 13 to 24 show, a graph of the harmonic values, 2 harmonic orders on each page:


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8 How do I View a Waveform?

8.1 After connecting to the PowerPad, select from the “View” menu “Waveform” to get the followingscreen:

8.2 Shows real time waveforms in the forms of graphs or charts. There can be a delay after openingthe window, before the waveforms appear. The data that is shown with a waveform is not derivedfrom that waveform, but is instead averaged over a one second period.

8.3 You can resize the window.8.4 The display choices are:8.5 RMS: Waveforms with Root Mean Squared values8.6 THD: Waveforms with Total Harmonic Distortion values8.7 CF: Waveforms with Crest Factor values (ratio of peak to RMS value calculated over 250ms)

8.8 Min/Max: Positive and negative peaks for a current waveform cycle, and min and max RMS valuesseen since the PowerPad was last turned on or was reset by pressing the PowerPad’s enter keywhile in the PowerPad’s Min/Max waveform display mode.

8.9 List: Chart of RMS, THD, CF, FLK (short term flicker), filtered RMS, and DC (direct current).8.10 Phasor: Also known as a Fresnel Diagram. It shows the a vector for each selected waveform, with

the angle relative to the first selected waveform, and the length proportional to the RMS value.8.11 Power: Displays power data. Shows W, the active power, VAR, the reactive power, VA, the

apparent power, Wh Source, the active positive received power, Wh Load, the active negativegenerated power, VARh capacitive and inductive, source and load, PF, the power factor, DPF(cosine), the displacement power factor, and Tangent.

8.12 The scale buttons, “++”, “+”, “-“, “—“, zoom in and out. “+” Zooms in, resulting in a finer detail, butpossibly not showing the full range of data. The “0” button restores autoscaling, which continuallyadjusts the scaling factor to display the data.

8.13 You can freeze the display, by checking the “Hold” box.8.14 If you want to create a report, select “Save”.


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8.15 Select a name for database, press “Save”:8.16 Enter the session properties you want to appear on the last page of the report.

8.17 Press “OK”.8.18 Close the PowerPad screen.



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8.20 The graph on page 1 shows the Voltage, phase-to-neutral phases. Below the graph is a channellist. Selecting a line from that list highlights the channel on the graph with small black squares, andshows information about that channel in other frames on the same page.

8.21 Below the channel list is a harmonic spectrum of the waveform channel selected.8.22 To the right of the harmonic frame is a channel information frame that shoes the frequency and

voltage ratio of the channel. A voltage ratio says that the voltage reaching the PowerPad wasdivided by that ratio, so the chart multiplies by that ratio to show the original voltage.8.23 Below the channel information frame is a meter. The meter shows the values of each channel for

the time selected on the graph. You can select a time on the graph by pressing the left mousebutton while the mouse pointer is over the part of the graph you want to select.

8.24 Page 2 is similar to page 1, but shows the current waveforms. Page 3 is similar to page 1, butshows the voltage phase-to-phase. Voltage phase-to-phase line 1, is equal to voltage phase-to-neutral line 1 minus voltage phase-to-neutral line 2.




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9 How do I View Harmonic Data in Real-time?

9.1 After connecting to the PowerPad, select from the “View” menu “Harmonic Bar” to get the followingscreen:

9.2 Shows real time harmonic bars.9.3 The choice of display is for each line, or for all lines together, or the +/- display.9.4 The +/- display groups the harmonics as negative, those inducing a negative sequence from load

to power, neutral, those inducing a nil sequence added to neutral, and positive, those inducing apositive sequence from power to load. Below each column is the mean of the sum of the harmonicsper phase.

9.5 The harmonic numbers 2, 5, 8, ..., would tend to cause a motor to turn in the opposite direction.These would tend to cause heat buildup in the motor. The harmonic numbers 4, 7, 10, ..., wouldtend to cause a motor to turn faster in its direction.

9.6 There can be a delay after opening the window, before the data appears.9.7 You can resize the window.9.8 The scale buttons, “++”, “+”, “-“, “—“, zoom in and out. “+” Zooms in, resulting in a finer detail, but

possibly not showing the full range of data. The “0” button restores autoscaling, which continuallyadjusts the scaling factor to display the data.

9.9 Shows the RMS and the THD for the waveform. If the waveform is current, shows the K-Factor.The K-Factor is multiplied by the RMS to show the equivalent heating effect on a transformer.

9.10 Select from the “View” menu “Harmonic Text” to get the following screen:


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9.11 Shows real time harmonic data. Shows the harmonic number followed by the magnitude of thatharmonic as a percentage of the fundamental, followed by the angle of that harmonic to thefundamental. There can be a delay after opening the window, before the data appears.

9.12 You can resize the window to include data that might not be displayed due to the window being toosmall.

9.13 The scale buttons, “++”, “+”, “-“, “—“, adjust the font size of the display. The “0” button restores thedefault value.

9.14 Shows the RMS and the THD for the waveform. If the waveform is current, shows the K-Factor.The K-Factor is multiplied by the RMS to show the equivalent heating effect on a transformer.

9.15 To create a report of the data, follow the same steps from the viewing a waveform section, startingwith step 8.14.




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10 How do I View Harmonic Data as a trend?


10.2 Choose the parameters you want to store. The harmonic choices are Voltage phase-to-phase,voltage phase-to-neutral, current, and power. Up to two harmonic types can be chosen for onerecording. You should include the matching rms value, to the harmonic choice. If including Voltagephase-to-phase harmonics (Uh), include Urms, if including voltage phase-to-neutral (Vh), includeVrms, if including current harmonics (Ah), include Arms, if including power harmonics (VAh),include VA.

10.3 If the harmonic values you want to record include harmonic number 1, the recording will include theabsolute values, volts, amps, and watts, of each harmonic, in addition to percent of harmonic 1.Otherwise, it will only include the percent of harmonic 1.

10.4 Choose a name, up to 8 characters, for the recording, when you want it to start and end, and theintegration period. The integration period represents one datapoint in the recording, which is anaverage value over that entire period. For instance, Vrms with an integration period of 1 minute,would show, for each minute, the average Vrms.


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10.5 Note, that the maximum recording time changes, when the integration period changes.10.6 Press “OK”.

10.7 Confirm that you want to schedule the recording.


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10.8 The recording is now scheduled. Note that the PowerPad must remain on until the recording iscompleted, otherwise it loses its schedule.

10.9 After the recording is complete, to download, select from the “Instrument” menu “Data”.10.10 Find the recording you want to download, from the list, and select it:


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10.18 The harmonic spectrum for Vrms is on a later page. The page number depends on what parameteryou selected for the recording. In this example, it is on page 2:


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10.19 The top graph shows the Vrms trends. Pressing and releasing the left mouse button in the graphmoves the vertical time cursor. The bar chart toward the bottom of the page shows the percentagevalue of Vrms harmonic 1, 3, 5, and 7, each for lines 1, 2, and 3. The arrow is pointing to Vrmsharmonic 3 for line 1. Harmonic 1 is always 100%.

10.20 A similar chart, showing the harmonic values in volts, instead of in percent of harmonic 1, is shown

on a following page:


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11 How do I View Power Data in Real-time?


11.2 Select the “Power” button on the right side of the screen, to get the following screen:

11.3 Make sure the screen is wide enough. Select the right edge of the screen, press the left mousebutton, drag the mouse to the right, and then release the mouse button, to get the following screen:


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11.4 Shows W, the active power, VAR, the reactive power, VA, the apparent power, Wh Source, theactive positive received power, Wh Load, the active negative generated power, VARh capacitiveand inductive, source and load, PF, the power factor, DPF (cosine), the displacement power factor,and Tangent.

11.5 You can resize the window to include data that might not be displayed due to the window being toosmall.

11.6 The scale buttons, “++”, “+”, “-“, “—“, adjust the font size of the display. The “0” button restores thedefault value.

11.7 To create a report, press “Save”:

11.8 Select a name for database, press “Save”:11.9 Enter the session properties you want to appear on the last page of the report.


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11.10 Press “OK”.11.11 Close the PowerPad screen.



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11.13 The first chart shows the stored energy from the time the “Start Accumulating” button was pressedto the time the “Stop Accumulating” button was pressed. You can select which phase to view, orthe sum of the phases.

11.14 The second chart shows the power data at the last time the “Start Accumulating” button waspressed or the “Stop Accumulating” button was pressed or the “Re-Read from PowerPad” button

was pressed.11.15 You can add to the report by following the steps in section 15. Generally when you are asked forthe name of a database, you’ll want to use the same database as you already loaded into thereport you are editing.



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12 How do I View Power and Energy Data for one time period?

12.1 After connecting to the PowerPad, select from the “Instrument” menu “Data”, then select the“Power/Energy” tab to get to the following screen:

12.2 When you want to start the energy accumulation time period, press the “Start Accumulating”button, to get the following screen:


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12.3 When you want to stop the energy accumulation time period, press the “Stop Accumulating” button,to get the following screen:


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12.4 You can view the data for any of the phases, or for a sum of all phases by pressing the phase inthe “Phase to Display” box.

12.5 To create a report press “Download to Database”:12.6 Choose a name for the database:

12.7 Press “Save”.12.8 Enter the session properties you want to appear on the last page of the report.


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12.9 Press “OK”.12.10 Close the “Data From PowerPad” screen.12.11 Close the “PowerPad” screen.



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12.13 The first chart shows the stored energy from the time the “Start Accumulating” button was pressedto the time the “Stop Accumulating” button was pressed. You can select which phase to view, orthe sum of the phases.

12.14 The second chart shows the power data at the last time the “Start Accumulating” button waspressed or the “Stop Accumulating” button was pressed or the “Re-Read from PowerPad” button

was pressed.12.15 You can add to the report by following the steps in section 15. Generally when you are asked forthe name of a database, you’ll want to use the same database as you already loaded into thereport you are editing.



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13 How do I View a Power and Energy Data as a trend?


13.2 Select one of the four configuration numbers. Each configuration stores a recording profile, which isa group of parameters to be saved in a recording.

13.3 Choose the parameters you want to store.


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13.8 Note that the PowerPad must remain on until the recording is completed, otherwise it loses itsschedule.

13.9 After the recording is complete, to download, select from the “Instrument” menu “Data” to get to thefollowing screen:


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13.10 Find the recording you want to download, from the list, and select it:





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13.18 This page shows the trends of power for each phase. By clicking on any of the channels in thechannel list, you can highlight that channel in the graph with small black squares and show data inthe box to the lower left part of the page.

13.19 The channel information box on the lower left part of the page shows the voltage and current ratios.A voltage ratio says that the voltage reaching the PowerPad was divided by that ratio, so the chart

multiplies by that ratio to show the original voltage. The current ratio is similar, but is only used forthe ADA (Adapter) probe and the MN193 Probe when its current rating is 5A. Reported power andenergy has been corrected by both the voltage ratio and the current ratio.

13.20 The next page shows cumulative values:


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13.21 They are the same values shown for power, but are added and shown in hour form. Therefore,while the last page showed watts, this page shows watt-hours.

13.22 The next page shows power factors:


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13.23 The next page shows VA again, but would also show harmonic values, if VAh had been part of therecording:


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14 How do I View a Phasor Diagram?


14.2 Select the “Phasor” button on the right side of the screen, to get the following screen:

14.3 Phasor Diagram is also known as a Fresnel Diagram. It shows the a vector for each selectedwaveform, with the angle relative to the first selected waveform, and the length proportional to theRMS value.

14.4 The scale buttons, “++”, “+”, “-“, “—“, zoom in and out. “+” Zooms in, resulting in longer vectors, butpossibly not showing the full diagram. The “0” button restores autoscaling, which continuallyadjusts the scaling factor to display the data.

14.5 The angles start at 0 to the right, and increase counter-clockwise. A higher angle means that thewaveform is leading, that is occurs before another waveform. The angle is derived from thefundamental harmonic component of the waveform, usually 50 or 60 Hz. The frequency is shownthat the bottom of the chart.


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14.6 Voltage phase-to-phase line 1 (U1) represents Voltage phase-to-neutral line 1 (V1) minus voltagephase-to-neutral line 2 (V2). U2 is V2 minus V3. U3 is V3 minus V1. The U phase 1, wouldgenerally be 30 degrees higher than (leading) V Phase 1. Current phase 1, I1 would be about thesame angle as U phase 1 in a delta setup where the load is a resistor.

14.7 There is no direct report available for the Phasor diagram. You can create a waveform andharmonic data report, by following the steps from step number 8.14.


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15.6 Now select the channels you want to see in this graph.

15.7 Two channels related to Line1 were chosen.15.8 When you use the template again, the “Template Filter” value is used to determine which channels

to include. The button “Channel Type, Code and Modifier” ensures that only those exact channelswill appear in reports based on the template being created. “Channel Type and Code” would


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include similar channels from different input lines. “Channel Type Only” would include all channelsof type “Alarm” and of type “Trend”. The modifier is generally the input line. The type is generallythe type of information, trend, alarm, etc. The code is generally the information being measuredwithin the overall type.

15.9 The “Scales” tab shows:

15.10 Automatic scales usually show the data best, but you can also manually set them, or with the“Enable lower limit for vertical scale maximum” say that autoscaling should not choose an upper

scale lower than a particular value. The “Display channel units on graph” will automatically display“V” for volts, or “A” for amps, or other units that are part of a channel. You can also specify the unitsby checking “Display channel units as” and filling in the box to its right. The last two items, shouldgenerally be left checked.


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15.13 Select the same channels you selected for the graph, using the “Ctrl” key to select separate lines inthe “Available channels” list. Then select “Channel Type, Code, and Modifier”. Select “Forcedisplay of trace”, which causes the graph to display what is selected in the channel list frame.Uncheck “Zoom parent frame on selection”. The zoom parent frame would cause the graph toshow the just the time of the selected channel. In this case, the alarms channels can be very brief,but the voltage trend sample is much longer in time.


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15.14 Select the “Parameters” tab.15.15 Add parameters by selecting lines in the “Available parameters” box and pressing “Add>>”.15.16 Select “Draw Grid”


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15.17 Press “OK”:


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15.18 Select the different channel lines and see how the chart shows those individual events.15.19 Add a new page by selecting in the “Edit” menu, “Add Page”:

15.20 Select the “Page 2” tab at the lower left part of the window to go to the new page.

15.21 Add a graph, repeating on this page, steps 15.2 to 15.5. Add a different set of channels:


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15.22 Select “Display channel units on graph”, same as step 15.8, and select “OK”:

15.23 Right click the mouse while inside the graph and select “Link Frame”:


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15.24 Select “Meter” and press “OK”.

15.25 Draw a box below and to the left of the graph:

15.26 Select “First sample value” as shown. The other options are only relevant to when a graph iszoomed out so that more than one data point occupy each pixel:


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15.31 Right click in the graph, “Link Frame” and select “Trend Summary List”. Press “OK” and draw a boxunder the channel list frame.

15.32 Select “Selected trace” and press “OK”:


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15.33 Now you can see the value of each datapoint for the channel you select in the channel list.15.34 Right click in the graph and select “Link Frame” and select “Channel Information”, press “OK”, draw

a box below the trend summary frame.15.35 Select “PowerPad Trend” in the “Select the channel type” box:


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15.38 Press “Insert Field Name”, then the “:” key, then the tab key, then “Insert Field Code”, then “OK”:15.39 Select in the channel list, the channel “Vrms Line1” again:


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15.40 To create, an “Exception List”, first delete the Trend Summary frame by left-clicking the mouse overit to select it, and then selecting from the “Edit” menu, “Cut”.

15.41 Right click in the graph and select “Link Frame”, select “Exception List” and press “OK”15.42 Draw a box where the Trend Summary frame was:


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15.43 Select “Selected trace”, and “Outside upper and lower limits”. Select 104 for the lower limit and 133for the upper limit. Select “Display limit bands”.


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15.44 Now, if you select “Vrms Line2” in the channel list, you’ll see the times that the channel met theexception conditions:

15.45 There are other frames that you can link to a graph. “Bar Chart Meter” is used to display dataproduced by the download of data from the “Instrument” menu’s “Data” choice’s “EN50160” tab ofthe PowerPad Software.

15.46 “Exceedence List” and “Exceedence Statistics” are not used with data produced by the PowerPadsoftware.15.47 “Graph Legend” shows the name of each channel in the graph, the color, and the units.15.48 “Harmonic Bar Graph” and “Harmonic Text Summary” can only be used with waveform channels.

They show the harmonic spectrum for that waveform.15.49 “Micro-Graph” produces another graph that can be linked to the original graph, or a channel list.

See the Transient template with the Transient sample data for an example of a Micrograph.15.50 “Session Summary” can be used to display values entered at the time of the download from the

PowerPad software. The included templates have a session summary on their last page.15.51 “Waveform Snapshot” is only used with Waveform channels. It can be used to display a second

view of the same waveform, zoomed differently, or scale differently.15.52 You can save the changes you made to the template by selecting from the “File” menu, “Save as

Template”, and choosing a new file name.


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