Fluke 1577, 1743, 1744, 1745 User Manual
®
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 Page
Introduction........................................................................................................ 1
Logging Functions......................................................................................... 1
Activities You Can Do with PQ Log............................................................. 2
System Requirements .................................................................................... 2
Installing PQ Log .......................................................................................... 2
Preparing the Logger for Use............................................................................. 3
Establishing a Connection to the Logger....................................................... 3
Setting Up Logger for a P Type Job.............................................................. 5
Logging Power Quality Data ............................................................................. 9
Downloading Logged Data to the PC ................................................................ 9
Viewing Live Readings ..................................................................................... 11
Advanced (Optional) Logger Settings ............................................................... 11
Settings – User Preferences ........................................................................... 11
Settings for Medium Voltage Networks........................................................ 13
Defining Interharmonics (A function only)................................................... 14
Sequential Logging Jobs................................................................................ 15
Analyzing Logged Data ..................................................................................... 16
Timeplot Display........................................................................................... 16
EN 50160 (for Europe).................................................................................. 16
PQ Log Feature Reference................................................................................. 18
Tool Bar......................................................................................................... 18
The Main Toolbar ..................................................................................... 19
Toolbar for Timeplot:................................................................................ 19
Toolbar for ONLINE Test......................................................................... 20
Toolbar for Measurement Value List....................................................... 21
Toolbar for Voltage, Current Cumulative Frequency ............................... 22
Toolbar for Events (UNIPEDE DISDIP Table)....................................... 22
Toolbar for Data List of All Events .......................................................... 22
Logger Menu ................................................................................................. 25
Setting up a Logger - Interharmonics (A) ................................................. 26
Reset.......................................................................................................... 26
Information about the Logger ................................................................... 27
Online Data from Logger.......................................................................... 28
Analysis ......................................................................................................... 28
Graphical Summary .................................................................................. 29
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Voltage Cumulative Frequency (A Only) ................................................ 30
Current Cumulative Frequency (A Only)................................................. 31
Symbol Bar for the Cumulative Frequency Display ................................. 33
Events........................................................................................................ 41
Table Summary ......................................................................................... 42
Statistical Values (A Only) ....................................................................... 44
Most Critical Values (A Only).................................................................. 44
Settings .......................................................................................................... 45
Settings- General....................................................................................... 45
Limit Value Level File.............................................................................. 47
Limit Value Level File – Voltage Harmonics........................................... 51
Limit Value Level File – Interharmonics.................................................. 52
Limit Value Level File - Signaling Voltages ............................................ 52
Application Oriented Analysis File........................................................... 53
Colors........................................................................................................ 54
Print Diagram without Background .......................................................... 54
Curve Width.............................................................................................. 54
Language................................................................................................... 54
Export........................................................................................................ 55
Window Menu............................................................................................... 55
Appendix A........................................................................................................ 56
Abbreviations, Symbols ................................................................................ 56
General ...................................................................................................... 56
Index
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List of Tables
Table Title Page
1. System Requirements............................................................................................. 2
2. Available Parameters for Version P....................................................................... 36
3. Available Parameters for Version A -Voltage, Current ......................................... 36
4. Available Parameters for Version A - Power, Energy ........................................... 37
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List of Figures
Figure Title Page
1. Start Menu.............................................................................................................. 3
2. Preparing a Logger Job .......................................................................................... 4
3. Problem in Connection Message............................................................................ 4
4. Serial Port Settings................................................................................................. 5
5. Current Setup Menu ............................................................................................... 6
6. Time Setting Menu................................................................................................. 7
7. Summary Screen .................................................................................................... 8
8. Warning Message Before Sending Setup Information........................................... 8
9. Successful Saving Confirmation Message ............................................................. 9
10. Selecting an Analysis Time Period ........................................................................ 10
11. Timeplot Display.................................................................................................... 10
12. General Settings Menu........................................................................................... 12
13. Potential Transformer............................................................................................. 13
14. Current Transformer............................................................................................... 14
15. Set up Logger for Function A ................................................................................ 15
16. Timeplot Display.................................................................................................... 16
17. PQ Log Table Summary......................................................................................... 17
18. Harmonics Graph ................................................................................................... 18
19. Information About the Connected Logger ............................................................. 27
19. Logger Graphical Summary Screen ....................................................................... 29
20. Voltage Parameters ................................................................................................ 31
21. Current Harmonics ................................................................................................. 32
22. Application Oriented Channel Selection................................................................ 34
23. UNIPEDE DISDIP Table....................................................................................... 42
24. Enter your title here................................................................................................ 42
25. Selecting Parameters .............................................................................................. 45
26. General Settings Menu........................................................................................... 46
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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
PC Software for 1740 Series
PQ Log is the PC application software for 1740 Series Loggers. PQ Log is compatible
with MS Windows
downloaded data from the Logger. You transfer logged data to a PC for graphical and
tabular evaluation, export to a spreadsheet, or generation of reports for printing.
Logging Functions
Models 1744 and 1745 have two types of logging functions: logging function A
(Advanced) and logging function P (Power). Function A is the full set of parameters, and
function P provides logging capability optimized for load studies and basic power
logging. Function P contains every parameter in Function A except voltage and current
harmonics and interharmonics. Model 1743 operates only with logging function P.
Logging function parameters:
• RMS Voltage of each phase (average, min, max)
• RMS Current of each phase and neutral (average, min, max)
• Voltage events (dips, swells, interruptions)
• Power (kW, kVA, kVAR, Power Factor, Cosine φ)
• Energy, total energy
• Flicker (Pst – short term, and Plt – long term)
• Voltage thd (Total Harmonic Distortion)
• Current thd
NT, 2000 and XP. PQ Log prepares the Logger for use, and receives
• Current CF (Crest Factor)
• Voltage harmonics to the 50
• Voltage interharmonics (not in P function)
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th
(not in P function)
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• 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
typical analysis tasks)
• Perform harmonic studies
• Perform statistical analysis
• Generate data tables
• Print tables, graphs, and comprehensive, formatted reports
• Export data to an ASCII file
• Upgrade the Logger’s Firmware (operating software) when a new release is
available on the Fluke website
• Perform standardized analysis of measured values according to the European
standard EN 50160
System Requirements
Table 1 shows the minimum computer requirements for PQ Log.
PC Configuration for PQ Log Necessary Recommended
Free hard disk space 10 MB >50 MB
CD-ROM drive }
Monitor 800 x 600 pixels 1024 x 768 pt
Serial interface, or a serial-to-USB interface
adapter and the USB adapter manufacturer’s
driver software for the adapter
Table 1. System Requirements
}
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Windows NT, 2000, XP or later version }
Color printer }
Installing PQ Log
Insert the Logger’s product CD into the CD-ROM drive. If your CD-ROM drive is
configured for Autorun, the installation starts automatically. If not, run the Launch.exe
program on the CD-ROM. Follow the instructions on the screen to install PQ Log in your
choice of language.
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.
W X Warning
To avoid electrical shock or damage to the equipment, read and
follow the safety warnings and cautions in the 1744/1743 or
1745 Users Manual before you make any connections to the
Logger.
Establishing a Connection to the Logger
Connect the Logger to a power supply and to the PC’s serial interface using the original
serial cable provided with the Logger before you proceed. If you are using a serial-toUSB converter cable, install the drivers that are shipped with the converter cable first,
then connect the original Logger serial cable and adapter to your USB connector.
Note
The red serial cable shipped with the Logger is a special cable – it is a nullmodem cable, with the TX and RX lines crossed. This allows the Logger to
work with a modem or a PC.
To establish a connection to the Logger:
1. Start up your PC.
2. Start PQ Log by selecting the PQ Log program icon
from
Start/Programs/Fluke/PQ Log. The PQ Log Start Menu appears:
Figure 1. Start Menu
3. Click on the Set up button next to ”Set up a logger for function P – basic power
logging”.
egd001.bmp
4. Verify that a screen similar to the one shown below appears. This means the PC
and Logger are communicating properly.
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Figure 2. Preparing a Logger Job
egd002.bmp
5. If the following screen appears, there is a problem with the connection to the
Logger.
Figure 3. Problem in Connection Message
egd003.bmp
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.
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PC Software for 1740 Series
Preparing the Logger for Use
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. Enter the Nominal Voltage. This can be a phase-to-neutral voltage or a phase-to-
phase voltage.
3. Select 50 Hz or 60 Hz from the Frequency pull-down menu.
4. Select the Power Type from the pull-down menu. This is where you set up the
Logger for Delta (3-wire) or Wye (star or 4-wire), or other power configurations
from a list of choices.
5. Select the Min-Max-value from the pull-down list. This determines the averaging
period of min/max capture for rms voltage levels for later display. Some
standards require certain min/max averaging periods. The shortest setting is ½cycle, which is the most sensitive for measuring the absolute highs and lows that
occur within an overall averaging period for measurements. (You choose
averaging period for measurements in in Figure 2.)
egd004.bmp
6. Click on the Current button on the right side of the menu. The Current menu
appears.
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Figure 5. Current Setup Menu
egd005.bmp
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. (Optional) Choose Measure or Calculate to determine how PQ Log will derive
the data it displays for neutral current. Sometimes it is useful to choose Calculate
even if the neutral current probe is connected around the neutral feeder. This is
the case when you want to measure power the same way a revenue power meter
does it, if the power meter uses a calculated neutral.
10. Click OK and you are back to the Setup for Logger function P menu. Select the
Averaging Period from the pull-down list. Notice how different settings affect the
available logging time. If you select 1 s, the available logging time is shortest,
but you get the most detailed data. Choose the setting that is required for the
power quality standards you want your data to comply with, or the one that gives
you the most detailed data for the time period of your logging session.
11. Select whether you want the Logger to quit logging when its memory is full
(Linear), or keep logging continuously by overwriting the oldest data with new
data (Circular).
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12. (Optional) Choose the averaging period for min/max power measurements from
the pull-down list.
13. Select how you want to control the start and stop times of the logging session:
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. If you select Time
activated job, you need to fill in the start and stop times in the following
menu. This menu appears when you select the Time activated job radio
button
Figure 6. Time Setting Menu
egd006.bmp
14. Click the Next button. The confirmation screen appears, which allows you to
review the settings you are about to load into the Logger or save as a template to
a file on the PC.
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Figure 7. Summary Screen
egd007.bmp
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.
Figure 8. Warning Message Before Sending Setup Information
egd008.bmp
16. Click on the Yes (Continue) button. A message tells you that the settings have
been saved successfully.
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PC Software for 1740 Series
Logging Power Quality Data
Figure 9. Successful Saving Confirmation Message
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.
Logging Power Quality Data
W X Warning
To avoid electrical shock or damage to the equipment, read and
follow the safety warnings and cautions in the 1744/1743 or
1745 Users Manual before you make any connections to the
Logger.
Once you have saved the Logger setup data in the Logger, disconnect the Logger from
the PC, and attach the voltage leads and current probes to the distribution system to be
measured as described in the Logger’s Users Manual. The Logger settings and the
recorded data are retained in the Logger’s memory when the power is disconnected from
the Logger.
How you start and stop the logging session depends on how you set the Measurement
Period buttons – continuous job, switch activated job, or time activated job.
Note
egd009.bmp
Downloading Logged Data to the PC
After completion of the measurement or when the job is active, you can transfer logged
data stored in the Logger to the PC. This action does not disrupt the ongoing logging
activity, so you can do it anytime.
To download the logged data to the PC:
1. Connect the Logger to the serial port of your PC. Select the menu Logger>Read
Results or click
2. Specify the name and path for the logged data file.
3. Click Save. PQ Log transfers measurement data from Logger to the PC. You will
see progress bars on the screen as the data is transferred from the Logger to the
PC.
4. The data transfer can take seconds or minutes, depending on the Baud rate and
the amount of data.
5. Once the data has downloaded to the PC, you choose a time period from the
downloaded data to store in the data file for analysis. Selecting a time period
shorter than the logging period does not delete any data. See Figure 10 for an
example how this time period selection appears. Refer to the section “Analyzing
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button from tool bar.
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Users Manual
Logged Data” for how to use the timeplot, and how to analyze the data in the
data file in general.
Figure 10. Selecting an Analysis Time Period
egd009a.bmp
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Figure 11. Timeplot Display
egd010.bmp
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.
You can monitor nearly all parameters, although Flicker (Plt) and min/max-values are not
available. Flicker (Pst) shows 5-second values. For all other parameters, 200 ms values
are displayed.
There is a stripchart on the screen which is updated in about 1-second intervals,
depending on the data transmission speed and the PC response time. PQ Log maintains
about 17 minutes of stripchart data in memory, and then writes over older values.
The buttons for time and y-axis scaling are:
Buttons Descriptions
Scales the Y-axis according to the extreme values. This is useful if the curve
leaves the visible area of the diagram during test
Allows you to add or delete additional parameters to or from the diagram
Activates the application oriented analysis. This feature groups parameters to
view based on the particular problem you are trying to resolve. For more details
refer to “PQ Log Feature Reference” section
Presents recorded data in a table format. The table is not updated automatically
Toggles the auto scroll function (the diagram is scrolled automatically if active)
Suspends the ONLINE display of data
Note
As long as the Online test is active, no communication to Logger is possible
because the serial port is occupied. You can print the stripchart by
selecting File>Print document from the menu bar.
Advanced (Optional) Logger Settings
The preceding setup procedures are the minimum necessary to carry out a logging
session. Other Logger settings that you can specify are explained below.
Settings – User Preferences
The settings menu presents choices for the following:
• Setting of limits (thresholds) for events
• Selection of an “Application oriented analysis” template
• Choice of colors for timeplot traces
• Your choice of language
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In the Settings Menu under General, the following screen presents you with choices for
the following:
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Figure 12. General Settings Menu
egd011.bmp
• Title to print on the automatic report
• Serial port and baud rate
• Calculation method for harmonics readings (A function only)
• Number of harmonic orders included in thd calculation (40 or 50) (A function
only)
• Phase identification (display of ”L1, L3, and L3” or ”A, B, and C”)
• A way to turn off automatic display of the Startup Screen when PQ Log is started
• Turning on or off automatic transfer of the PC’s internal real-time time/date
setting to the Logger’s internal real-time clock every time settings for a new job
are written to the Logger
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. For example, in 14 kV delta power
network, the primary side of a Potential Transformer (PT) might be at 14 kV potential,
and the secondary side might be at 100 V potential. There might be a Current
Transformer (CT) with a ratio of 1000 A to 5 A. For the Logger to display readings in the
14 kV and 1000 A range:
1. In the ”Set up a logger for function P or A” screen, check the box for ”Voltage
transformer” at the top of the screen. Entry boxes for Primary and Secondary
appear. Make the voltage entries as shown:
Figure 13. Potential Transformer
egd012.bmp
2. Open the Current menu. Check the box for Current Transformer, and enter the
current primary and secondary as shown:
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