® PQ Log PC Software for 1740 Series Users Manual June 2006 © 2006 Fluke Corporation, All rights reserved. All product names are trademarks of their respective companies.
Table of Contents Title Introduction........................................................................................................ Logging Functions......................................................................................... Activities You Can Do with PQ Log............................................................. System Requirements .................................................................................... Installing PQ Log .............................................
PQ Log Users Manual Voltage Cumulative Frequency (A Only) ................................................ Current Cumulative Frequency (A Only)................................................. Symbol Bar for the Cumulative Frequency Display ................................. Events........................................................................................................ Table Summary .........................................................................................
List of Tables Table 1. 2. 3. 4. Title System Requirements............................................................................................. Available Parameters for Version P ....................................................................... Available Parameters for Version A -Voltage, Current ......................................... Available Parameters for Version A - Power, Energy ...........................................
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List of Figures Figure 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 19. 20. 21. 22. 23. 24. 25. 26. Title Start Menu.............................................................................................................. Preparing a Logger Job .......................................................................................... Problem in Connection Message............................................................................ Serial Port Settings.....................
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PQ Log PC Software for 1740 Series Introduction The Fluke 1740 Series Loggers monitor power quality and locate disturbances in low and medium voltage distribution networks. The “Logger” in this manual refers to either of the Models 1744 or 1745. The Logger measures up to 3 voltages and 4 currents. Logged values are saved in your choice of sequential averaging periods. You graphically or numerically evaluate measured values with PQ Log Software. PQ Log is the PC application software for 1740 Series Loggers.
PQ Log Users Manual • Mains signaling voltage • V Unbalance (Positive sequence/negative sequence harmonics) • Line (mains) frequency Activities You Can Do with PQ Log The activities that you can do with PQ Log are: • Prepare the Logger for use, connected to the Logger, or in advance • Monitor live data from the Logger • Download recorded logged data to the PC • View, print, and export timeplots of all channels • Application-oriented analysis (sets of parameters to graph to achieve different
PC Software for 1740 Series Preparing the Logger for Use Preparing the Logger for Use PQ Log and this manual refer to logging (recording) sessions as Jobs. A Job is a package of Logger settings that configures a Logger for a recording session. In addition to saving the setups in the Logger, you can save setups as template files on the PC for later recall. The following instructions take you through the Logger setup process.
PQ Log Users Manual egd002.bmp Figure 2. Preparing a Logger Job 5. If the following screen appears, there is a problem with the connection to the Logger. egd003.bmp Figure 3. Problem in Connection Message 6. If your PC is not connecting to the Logger, find the serial port that connects to the Logger by trying them sequentially. You will find this setting under Settings/General Settings. The following picture shows the communication settings portion of the General Settings menu.
PC Software for 1740 Series Preparing the Logger for Use egd004.bmp Figure 4. Serial Port Settings Setting Up Logger for a P Type Job If PQ Log is connected to the Logger, the Logger automatically identifies the Logger type and the current probe type attached. To set up P type Logger Job: 1. Make sure the PC is communicating with the Logger. Starting from step 3 above, set up the Logger parameters for the job as follows, starting from the top of the “Set up for Logger” function P menu. 2.
PQ Log Users Manual egd005.bmp Figure 5. Current Setup Menu 7. Select the current Min-Max-value from the pull-down list. This is an independent setting for averaging period just for current. You will use the effects of this setting later during the analysis of the data when you choose to see the voltage at the time max current happened. 8. If you are using Flexi-Set current probes, you have a choice of sensitivity ranges. Select the one you want from the pull-down list. 9.
PC Software for 1740 Series Preparing the Logger for Use • Continuous job – The Logger starts logging as soon as it receives the setup information you are completing now • Switch-activated job – The Logger starts logging when you press the START button on the front of the Logger, and stops when you press it again • Time-activated job – The Logger waits until a programmed time to start logging, and stops when the programmed stop time occurs.
PQ Log Users Manual egd007.bmp Figure 7. Summary Screen 15. Once you are satisfied that the settings are correct, save these settings to a template for later recall by clicking on the PC Save or Save As button. To write the setup data to the Logger, click on the Logger Save button. If you want to make sure you are not about to delete any important data, download the data before you send the job setup information to the Logger. egd008.bmp Figure 8. Warning Message Before Sending Setup Information 16.
PC Software for 1740 Series Logging Power Quality Data egd009.bmp Figure 9. Successful Saving Confirmation Message Note If you have checked the box Automatic time synchronization in the Settings/General menu, the date and time of the PC clock is transferred to the Logger every time you write setups to the Logger.
PQ Log Users Manual Logged Data” for how to use the timeplot, and how to analyze the data in the data file in general. egd009a.bmp Figure 10. Selecting an Analysis Time Period egd010.bmp Figure 11.
PC Software for 1740 Series Viewing Live Readings Viewing Live Readings You can view live readings to gain assurance that the data being logged is going to be useful, and the settings and current probe range is correct. To view live readings: 1. Connect the PC to the Logger while the logging is active. 2. Click on the icon or select “Online data from the Logger” from the Logger menu. A strip chart display shows data from any channel you select to view.
PQ Log Users Manual In the Settings Menu under General, the following screen presents you with choices for the following: egd011.bmp Figure 12.
PC Software for 1740 Series Advanced (Optional) Logger Settings • A way to turn on or off display of a warning message that a logging period is not in conformance with the European EN 50160 standard • Turning on or off flicker and thd values during data analysis Settings for Medium Voltage Networks When preparing a Logger for use, you can enter ratios for voltage and current, resulting in the calculation and display of primary side values.
PQ Log Users Manual egd013.bmp Figure 14. Current Transformer Defining Interharmonics (A function only) The Logger uses an interharmonics calculation to measure mains signaling, or ripple control signals. These signals are used in some parts of Europe to control industrial equipment and lighting. Logging of interharmonics is optional. To define interharmonics to log: 1. Click Edit Interharmonics from the ”Set up for Logger function A” screen.
PC Software for 1740 Series Advanced (Optional) Logger Settings egd013a.bmp Figure 15. Set up Logger for Function A 2. Enter the frequency of the ripple control signals of your local power utility, or of the interharmonics which are to be monitored. Five different channels (frequencies) are possible.
PQ Log Users Manual Analyzing Logged Data Note Check that the appropriate limit value file is selected. Use menu Software Settings>General>Select Limit value file for analysis. “Default GWD60 Hz.gwd” is for applications in 60 Hz systems. “EN 50160.gwd” is preset for limits defined in EN 50160 “50160_61000-2-2.gwd” has limits for harmonics up to the 50th order according to IEC 61000-2-2 Timeplot Display When you first open a data file to analyze, a Timeplot is displayed. See Figure 16. egd015.
PC Software for 1740 Series Analyzing Logged Data 95 % of all measured values are less or equal to the 95 %-value. The remaining 5 % of measured values exceed this value but must be below the 100 % limit value. Thus, the 95 %-value provides statistical information about the distribution of the measured values. Also refer to PQ Log Feature Reference section. Menu File>Print Document will print this diagram. An analysis of the data can be done using menu Analysis>Table Summary: egd015a.bmp Figure 17.
PQ Log Users Manual egd015b.bmp Figure 18. Harmonics Graph From this representation, it can be seen which harmonics on which phases exceed the limit value as per standard EN 50160. PQ Log Feature Reference This section contains detailed information about options and dialog boxes for PQ Log. It is divided into the following sections: • Tool Bar • Options Menu • Logger Menu • Job Templates • Analysis • Settings • Window Menu Tool Bar Some options can be selected directly from the tool bar.
PC Software for 1740 Series PQ Log Feature Reference The Main Toolbar Information about a data file* Open a data file Reopen data file Print directly* Read results Information about Logger Online Test Stop logging Graphical summary* Table summary* Timeplot* Application oriented analysis* Voltage cumulative frequency* Current cumulative frequency* Events, UNIPEDE DISDIP table* Software Settings Info Toolbar for Timeplot: X-axis: Entire measurement period X-axis: 28 days X-axis: 7 days X-axis: 1 day 19
PQ Log Users Manual Move to begin of measurement Previous time segment Next time segment Move to end of measurement Enlarge time scale Reduce time scale Open X-axis scaling dialog box Zoom undo Left scaling selection is affected Right scaling selection is affected Scaling dialog for Y-axis Show/hide limit values Channel selection Application-oriented channel selection Measurement value list Show energy (in functions A, P only) Toolbar for ONLINE Test X-axis: Entire measurement period X-axis: 28 days X-axis
PC Software for 1740 Series PQ Log Feature Reference Previous time segment Next time segment Move to end of measurement Enlarge Reduce Open X-axis scaling dialog box Zoom undo Left scaling selection is affected Right scaling selection is affected Scaling dialog for Y-axis Scale Y according to extreme value Show/hide limit values Channel selection Application-oriented channel selection Measurement value list Auto scroll on/off Stop Toolbar for Measurement Value List Print one page only Print whole measureme
PQ Log Users Manual Show/hide interval status Toolbar for Voltage, Current Cumulative Frequency Scaling according to limit value, not available for current Scaling according to nominal value Class limits Create timeplot with selected curves Print list of harmonics Toolbar for Events (UNIPEDE DISDIP Table) Events of all phases Events phase L1 or A only Events phase L2 or B only Events phase L3 or C only Data list of all events Toolbar for Data List of All Events Events of all phases Events L1 or A Events L2
PC Software for 1740 Series PQ Log Feature Reference Print whole measurement period Opening a Data File This menu item opens a saved Logger measurement data file. To open a Logger data file: 1. Select the desired file in the "File/Open a data file" dialog box. 2. Select the evaluation period. This is important if the data was recorded for a long period and a report according to European standard EN 50160 is required (1 week period). This selection does not delete any data in the data file.
PQ Log Users Manual 2. Statistical measurement data : This option exports the value classes for signaling voltages and the frequency (function A only). 3. Exporting Events: This option exports data on the voltage dips, voltage surges, and voltage interruptions. 4. VSE-Export: This is a special export format mainly used in Switzerland. 5. V-Export: This is an export format especially created for Venezuela. It can also be used in other Spanish speaking countries. 6.
PC Software for 1740 Series PQ Log Feature Reference To export data in the .vse format: 1. Go to File>Export>VSE Export. 2. Select the measurement parameters and the transformer power for export. 3. Click OK to initiate the export. 4. Select the harmonics to be exported. Note Do not change any of the settings if you are performing a standard export. Note With the buttons and you can move all the available parameters simultaneously. You can move a maximum of 999 parameters at one time. 5.
PQ Log Users Manual Advantage: Many small events that are detected if the mains voltage is close to the threshold are concatenated to one main event. Setting up a Logger - Interharmonics (A) Interharmonics (maximum 5) Up to 5 interharmonic frequencies can be selected. Voltages and currents with these frequencies are monitored. Note Interval data and statistical data are recorded for each interharmonic. Classes between 1 % and 11 % of Vn are created for the 3 s-Max-values for each phase and each frequency.
PC Software for 1740 Series PQ Log Feature Reference 3. Define the type of the connected Logger. Be very careful that your selection matches the Logger type that you are using. If you select an improper type, the results could be unpredictable. Details such as the Type, Mains Frequency, and Order Reference are displayed on rear panel of the Logger. The next field defines the nominal mains frequency.
PQ Log Users Manual • Number of events The available messages are: • No job is programmed • Job is active (between segments) • Job is active, previous job is available • Job is completed Additionally the following information is also available: • Logger name • Logger date/time • Hardware type of the Logger • Serial number • The field ”Current sensor type” shows the type of the connected accessory: o Type 0: No accessory detected o Type 1, 3: Flexi Set 3-phase o Type 2, 4: Flexi Set
PC Software for 1740 Series PQ Log Feature Reference Graphical Summary The Graphical Summary screen, Figure 19, is for the European EN50160 standard. egd015c.bmp Figure 20. Logger Graphical Summary Screen A graphical representation of a statistical analysis of all measured parameters for the total measuring period is shown. We can see which values exceed the limit values as per standard EN 50160 and/or which reserves are available.
PQ Log Users Manual • There are any reserves available Note In the EN-50160 regulation there is a 95 % limit value for all measured parameters. That is, 95 % of all measured values during one week must be below this limit value. For some parameters (frequency and slow voltage variations) there is a 100 % limit value. That is, 100 % of all measured values must be below this limit value. There are thd V bars for thd of voltages of each phase. The bars ”Flicker” show the long term values, Plt.
PC Software for 1740 Series PQ Log Feature Reference egd015d.bmp Figure 21. Voltage Parameters You can easily see which harmonics exceed the permissible limit value and how many reserves are available. Only the first 25 harmonics in the limit value level file EN 50160.GWD are assigned a limit value. If you wish to examine the harmonics between 25-40, select the limit value level file 50160_1000-2-2.gwd. This selection can be made through the menu option – Software Settings.
PQ Log Users Manual egd015e.bmp Figure 22. Current Harmonics Presentations and creation of timeplots are similar to voltage cumulative frequency. Note The nominal value can be modified at any time for the stored measurement data files to achieve optimal scaling: Select File>Change current transformer to enter the required nominal current values and reopen the measurement data file. Creation of a Timeplot: It is possible to directly view the timeplot for each measured variable, i.e.
PC Software for 1740 Series PQ Log Feature Reference Symbol Bar for the Cumulative Frequency Display Scaling Limit value Scales the diagram according to the selected limit value level file. Not available for current cumulative frequency. Scaling Nominal value Scales according to the nominal value. Scaling Class limits Selects the class limits. Analysis>Timeplot Creates a timeplot with selected curves. Print File list Prints a list with all harmonics.
PQ Log Users Manual Timeplot - Channel Selection Options There are three options for selecting the measurement rows for the diagram. • Application-oriented selection • Manual selection • Selection in cumulative frequency representation Application Oriented Analysis Selects predefined measured variable combinations, and represents the values in the timeplot using significant scaling. Select Analysis>Application oriented analysis. The Timeplot – Application Oriented Channel Selection screen appears.
PC Software for 1740 Series PQ Log Feature Reference Note Check the different options using the demo measurements, or one of your own measurements. This will quickly give you an impression of the predefined analyses. 2. Click OK. The timeplot appears in the desired format with the selected channels. Info Click this button to view the information text for each predefined analysis. A message explains why the selected channels are relevant for the analysis.
PQ Log Users Manual Table 2. Available Parameters for Version P Voltage Active power P Current Apparent power S Others V.
PC Software for 1740 Series PQ Log Feature Reference V h1 (V) Harmonics V h1–V h50 Note The phase-phase voltages V delta rms is measured as: • V delta rms L1 or A: between L1 or A and L2 or B • V delta rms L2 or B: between L2 or B and L3 or C • V delta rms L3 or C: between L3 or C and L1 or A Table 4. Available Parameters for Version A - Power, Energy Active Power P Apparent Power S Distorting Power D Others Active power average S.
PQ Log Users Manual • According to the extreme value: All channels are scaled according to the minimum and maximum values. They are always visible in the diagram (the maximum value is scaled to the middle of the diagram). Note Each individual measurement row can have its own scaling. The scaling can look unfamiliar and the evaluation complex especially when indicating the voltage’s minimum, maximum, and mean values. So grouping of similar parameters to use identical scales is recommended.
PC Software for 1740 Series PQ Log Feature Reference Toolbar Scaling Measurement period The entire time-axis is shown. 28-days 28 days are shown. 7-days 7 days are shown. 1-day 1 day is shown. To the beginning Goes to the beginning of the measurement. Previous time segment Moves a time segment backwards. Next time segment Moves a time segment forwards. To Measurement end Goes to the end of the measurement. Enlarge The scaling of time segments is decreased by one level.
PQ Log Users Manual Channel selection Calls up the channel selection dialog for this diagram. Application-oriented channel selection data Calls up the application-oriented channel selection dialog for this diagram. Measurement value list Shows the measurement value list with the channels selected in the level-time diagram. Display energy (measurement function P only) Integrated over visible time interval in actual window.
PC Software for 1740 Series PQ Log Feature Reference Print Click this button to print the selected measurement period using the default settings, or with the desired start time and period setting. Click S, to view details such as the interval information, including number of intervals, voltage (V) and current (I) overflow, as well as power supply failure (N). (G) signifies a valid measurement interval. (C), a clamp error, signifies the type of the current sensor changed during a measurement.
PQ Log Users Manual egd015h.bmp Figure 24. UNIPEDE DISDIP Table L1, L2, L3 Click this button to view the number of events of the respective phases. Lx Click this button to view the events of all the phases. Note If there is a power failure on all three phases, three single events for each phase are recorded. The response time for events is always 10 ms, which cannot be modified. There are two extra lines which sum up short and long interruptions (<3 min, ≥3 min).
PC Software for 1740 Series PQ Log Feature Reference Voltage Variations The column Maximum value displays the maximum and minimum deviation in percentage in relation to the nominal voltage. In the 95 %-value column, the upper and lower limits indicate that 95% of all measurement values are between the positive and the negative values. Note The absolute value of the voltage deviation is used to calculate the 95 % value. However, the information about the sign is lost.
PQ Log Users Manual Only those signaling voltages that have a defined limit value in the actual limit value level file can be analyzed. Frequency The maximum value column shows the maximum and minimum deviation in percent as related to the base frequency. To calculate the 95 %-value the absolute value of the frequency deviation is used. The information about the mathematical sign is lost. So there is only one 95 %-value.
PC Software for 1740 Series PQ Log Feature Reference egd015i.bmp Figure 25. Selecting Parameters Settings This menu is mainly used to set up general settings such as language of user interface, communication parameters, selection of files which contain the limits for evaluation, or files for the AOA, the application oriented analysis function. Settings- General This function is used to: 1. Select the limit value file and file for Application Oriented Analysis. 2. Enter a header for the printouts. 3.
PQ Log Users Manual egd015j.bmp Figure 26. General Settings Menu Title on Print Enter the title text with maximum of 50 characters. This text is displayed on every printout. Limit Value Level File for Analysis Select the file which contains the limit values for the analysis of the Logger measurements. If you change the limit value file while a measurement is open, the measurement will be analyzed with the new limit value file after exiting the screen. Select one of the prepared files.
PC Software for 1740 Series PQ Log Feature Reference Note If one of the files is selected, the presentation of current harmonics bars is suppressed because EN 50160 does not deal with current harmonics. To see graphs for the current harmonics, save the limit value file under another specific name. Filename 50160_61000-2-2.gwd provides harmonics limits up to the 50th order according to IEC 61000-2-2. Default GWD60Hz.gwd is for applications in 60 Hz systems.
PQ Log Users Manual Indicates the Vn lower limit value, which, when exceeded, is registered as a slow voltage variation. The % Vn is entered. The limit value is calculated as Vn - x % Vn. According to the EN 50160 standard, this limit value is 230 V – 10 %, i.e. 207 V. Note A voltage variation occurs when the measured mean value (according to the EN 50160 standard, the 10 minute mean value) is above or below the limit value.
PC Software for 1740 Series PQ Log Feature Reference Note An exceeding occurs when the mean measured value Plt (according to the EN 50160 standards, the mean value Plt is calculated over twelve 10 minute mean values Pst) is above or below the limit value. The standard is met if 95 % of all measured values are below the limit value. Voltage Unbalance This option indicates the limit value for permissible voltage unbalance in three phase systems.
PQ Log Users Manual • The rated current IA which is the nominal current the installation is designed for • The rated apparent power SA • The short circuit apparent power SkV at the PCC (Point of Common Coupling) For each harmonic current In there is limit value which can be calculated from these basic parameters. The PQ Log software is able now to adapt these limits for specific installations where the measurements were taken.
PC Software for 1740 Series PQ Log Feature Reference The calculated values appear in the left list field and can be transferred individually with the button or all at once with the button to the right list field. The values in the right list will be taken into account in further evaluations in PQ Log. • Save the limit value level file under an appropriate name. The installation specific values IA, SkV, SA, and the new limit values are stored for future use.
PQ Log Users Manual Level Enter the limit value in % Vn for the selected harmonics. Set Enter the required harmonic and the appropriate limit value. The frequency and the limit value are adapted in the limit value list by using Set. 50 limit values for harmonics can be defined. Transfers the harmonics selected in the selection list with the appropriate limit value to the limit value list. Transfers all harmonics listed in the selection list with the appropriate limit value to the limit value list.
PC Software for 1740 Series PQ Log Feature Reference Transfers the signaling voltages selected in the selection list with the appropriate limit value to the limit value list. Transfers all signaling voltages listed in the selection list with the appropriate limit value to the limit value list. Transfers the signaling voltages selected in the limit value list with the appropriate limit value to the selection list.
PQ Log Users Manual Copy Copies the text to the clip-board for insertion into a measurement protocol. Delete Enables you to delete an application if desired. Edit Enables you to edit the text in the related fields. Selected channels Displays the predefined channels for the Timeplot. Edit Opens a special editor for precise setup of the analysis channel. We can add and delete specific channels and define analysis parameters, for example begin and end of scale, and rounding.
PC Software for 1740 Series PQ Log Feature Reference Note Changing languages is not available if a measurement file is open. Export This function is used to set up all settings required for automatic or manual data export. For data export to Windows applications, the parameters for the export must be defined once. The menu Software Settings>Export provides all necessary definitions. The default format is perfect for importing into MS EXCEL. Click OK to confirm.
PQ Log Users Manual Appendix A Abbreviations, Symbols General Total For all three phases, A or L1, B or L2, C or L3 Min General: minimum value Max General: maximum value Mean Average value |xxx| Absolute value of a parameter, always positive A or L1, B or L2, C or L3 Phases A or L1, B or L2, C or L3 Voltage Parameters V Voltage Vn Nominal voltage V h1 Voltage, fundamental component V h1 – V h50 Voltage harmonics with order 2 - 50 V delta rms A or L1 Voltage RMS value between A or L1 an
PC Software for 1740 Series Appendix A (1/2-cycle up to 5 s) Iact at Vmax Actual current at the time Vmax occurred Iact at Vmin Actual current at the time Vmin occurred Imax act Maximum current based on 10 ms rms values THD I Total harmonic distortion, harmonic contents of current Power Parameters P Active power P h1 Active power of fundamental Q Reactive power Q h1 Reactive power of fundamental S Apparent power D Distorting power COS PHI Power factor of fundamentals PF Power factor
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Index —"— —D— "50160_61000-2-2.gwd, 43 Default GWD60 Hz.gwd, 16 —1— —E— 100 % limit value, 17 95 %-value, 17 EN50160, 16 EN50160 50 Hz.gwd, 30 En50160.gwd, 16 EN50160.
PQ Log Users Manual Limit value level file, 47, 53 Limit values, 47 List of Harmonics, 33 Live stripchart, 11 Logger Information, 27 —M— Main Symbol Bar, 19 Measurement data file, 9 Measurement Principle, 26 Measurement protocol, 23 —O— Setup printer, 23 Show source, 53 Signaling Voltage, 43 Signaling Voltages, 51 Software Settings, 45 Standard limit value file, 45 Statistical measurement data, 24 Stripchart view, live, 11 Summenhaufigkeit, 31 Symbol Bar Cumulative Frequency, 22 Symbol Bar Events, 22 Sy
