IDAX300 And IDAX350 User Manual Brochure
User Manual: IDAX300-and-IDAX350-User-Manual-Brochure
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IDAX Monitoring SW to monitor processes using Dielectric Frequency Response User’s Manual WWW.MEGGER.COM Art No. ZP-AG02E Doc. AG033573AE V01a 2017 IDAX Monitoring SW to monitor processes using Dielectric Frequency Response User’s Manual NOTICE OF COPYRIGHT & PROPRIETARY RIGHTS © 2016, Megger Sweden AB. All rights reserved. The contents of this manual are the property of Megger Sweden AB. No part of this work may be reproduced or transmitted in any form or by any means, except as permitted in written license agreement with Megger Sweden AB. Megger Sweden AB has made every reasonable attempt to ensure the completeness and accuracy of this document. However, the information contained in this manual is subject to change without notice, and does not represent a commitment on the part of Megger Sweden AB. Any attached hardware schematics and technical descriptions, or software listings that disclose source code, are for informational purposes only. Reproduction in whole or in part to create working hardware or software for other than Megger Sweden AB products is strictly prohibited, except as permitted by written license agreement with Megger Sweden AB. TRADEMARK NOTICES Megger® and Programma® are trademarks registered in the U.S. and other countries. All other brand and product names mentioned in this document are trademarks or registered trademarks of their respective companies. Megger Sweden AB is certified according to ISO 9001 and 14001. Postal address: Megger Sweden AB Box 724 SE-182 17 DANDERYD SWEDEN T +46 8 510 195 00 F +46 8 510 195 95 AG033573AE Visiting address: Megger Sweden AB Rinkebyvägen 19 SE-182 36 DANDERYD SWEDEN seinfo@megger.com www.megger.com ZP-AG02E IDAX Monitoring 3 Contents 1 Introduction ................................................................ 6 Software Installation...........................................6 2 Getting Started ................................................................ 8 3 Sample connection .............................................................. 10 Oven bushings and high temperature coaxial cables... 10 4 Sweep and temperature settings....... 12 4.1 Overview....................................................12 4.2 Sweep........................................................13 4.3 Temperature...............................................13 Automatic entry......................................................... 13 Manual entry............................................................. 13 Loading a temperature profile.................................... 14 5 Export and Report .............................................................. 16 5.1 Export and report........................................16 Design a personalized report...................................... 16 5.2 Settings......................................................17 5 Appendix A .............................................................. 18 Individual Temperature Correction (ITC).............18 4 IDAX Monitoring ZP-AG02E AG033573AE AG033573AE ZP-AG02E IDAX Monitoring 5 1 Introduction 1 Introduction IDAX Monitoring is an additional feature to IDAX 5.0 SW to make it possible use a IDAX 300 to monitor processes using DFR (Dielectric Frequency Response). Examples of processes to be monitored are: ▪▪Dry-outs, reduction of moisture content, of unimpregnated as well as impregnated cellulose in e.g. power transformers. For such processes ITC (Individual Temperature Corrected) dissipation factor are most commonly used Software Installation Monitoring functionality is installed during installation of IDAX 5.0 software, but it is disabled by default. In order to enable this functionality a licence code must be obtained. Monitoring functionality can be activated by entering user name and corresponding activation code. ▪▪Impregnation, e.g. impregnation of dry cellulose with insulation liquids or resins. For such processes ITC (individual Temperature Corrected) capacitance may be used; however, be aware of that temperature change the geometry and the effect of geometry is not corrected in the ITC. ▪▪Curing of resins. Curing status strongly affect the dielectric properties of the insulation material and therefore monitor of such process is possible. See e.g. “Analysis of Dielectric Response Measurement Methods and Dielectric Properties of Resin-Rich Insulation During Processing” by Anders Helgeson IDAX Monitoring can be used in factory environment as well as in the field. The connection to a PC or other intelligent system is the same as for IDAX via the USB port and/or the Ethernet port on the IDAX front panel. The IDAX may be connected to the PC or other intelligent system operation, however, you may disconnect and reconnect at a later occasion during the monitoring process. Then IDAX Monitoring SW automatically collect all data points collected. 6 IDAX Monitoring ZP-AG02E AG033573AE 1 Introduction AG033573AE ZP-AG02E IDAX Monitoring 7 2 Getting Started 2 Getting Started This section provides a step-by-step instruction. 1] Start the IDAX 5.0 SW. SW will appear similar to picture below. 2] All data will always be saved in a file, therefore, you should press the “New File” button (right-hand side). Important “Monitor” has inherited most of functionality from “Moisture” and therefore “Test Objects” available is limited to those currently available in “Moisture”, and only one “Test Mode” per test is allowed. For monitoring, UST configuration is strongly recommended and therefore the “Two Winding Transformer” with “Test Mode” CHL (UST-R) can be used for almost all samples (if a GST measurement is required, select e.g. “Auto Transformer Without Tertiary”). 4] Select “Test Object” (normally Two Winding Transformer even if you intend monitoring a current transformer, bushing etc.). 5] Enter temperatures into compulsory fields 3] Then the “Create a New File” window will appear, defaulted to “Moisture”. Press the “Monitor” tab. For more information by “Moisture”/”DFR”/”%DF/%PF/”DC” and the tabs “Single Test”/”Multiple Tests/”Use Measurement as Template”, see IDAX User’s manual. “Ambient Temperature” and “Object Temperature”, e.g. 22C. These two fields are there as inherited from “Moisture”, these values will not be used in the Monitoring function. 6] Enter other fields if you need information (or add information to nameplate later). 7] Press “Create”. 8] Save the “File” at location of your choice 8 IDAX Monitoring ZP-AG02E AG033573AE 2 Getting Started Act. Energy 9] Now, you have a “Test” (labeled CHL, upper, left-hand side of window) that can be run (after connected to IDAX and start by press “Start” button in lower right-hand side corner Activation Energy used for ITC temperature correction. Incorrect values scale data slightly incorrect but has limited impact as long as Reference temperature is not too far from actual measurement temperature. Typical values (Cellulose means pressboard, Kraft paper or Crepe paper): ▪▪Oil-impregnated cellulose, -20-80°C: 0.9 eV ▪▪Non-impregnated cellulose, >80°C: 1.0 eV Temperature Reference temperature for ITC Moisture Select a database (Default or other, to be modified in Settings tab), and Moisture is plotted. Note that in case Moisture is selected, Activation energy and (reference) Temperature is fixed to value determined by the selected database In lower part of right-hand side, it is a section labeled “Settings” that display part of settings for the test: Stop frequency Lowest frequency to be used in DFR sweep of the full sweep defined on settings tab (see section Settings tab). You may change “Stop frequency” in drop down list. Test mode By clicking this button you see the basic connection diagram. Voltage (RMS) Applied voltage level. You may use any voltage level, however, if you use voltage level below 7 Vrms (10 V peak), you preferable change from 200 V peak amplifier to 10 V peak amplifier on Settings page (may be advisable measuring under Vapor Phase conditions). AG033573AE ZP-AG02E IDAX Monitoring 9 3 Sample connection 3 Sample connection This section provides a step-by-step instruction on how to connect the test specimen. 1] Start the IDAX 5.0 SW. 2] All data will always be saved in a file, therefore, you start by press “New File” button. Oven bushings and high temperature coaxial cables A common application of IDAX Monitoring is monitor sample during processing in a climate chamber, e.g. oven drying or Vapor Phase drying. In this case, bushings for bringing cables into the chamber are necessary and often also special high-temperature cables, which does not get damaged by high temperatures and kerosene. There are different types of connectors and cables on the market that will work for this application, description below will act as example. BNC-connectors: ▪▪BNC Adapter, female/female: Rosenberger 51K501K00N4 ▪▪High temperature cable: PRO POWER, RG142 Coaxial Cable, RG142, 50 ohm, order code 2064894 ▪▪BNC connector (fit to cable above): Rosenberger 51S107-108N5 10 IDAX Monitoring ZP-AG02E AG033573AE 3 Sample connection AG033573AE ZP-AG02E IDAX Monitoring 11 4 Sweep and temperature settings 4.1 Overview Moisture In the Overview tab, the measurement results as function of time are presented. Note One or more parameters (e.g. %DF) to be plotted need to be activated; otherwise the graph will be empty. By select a database, you activate Moisture assessment based on table database selected (see Settings page). Inactivate the function by selecting “None”. If a database is selected, Frequency (Hz), Act Energy (eV) and Temperature (°C) are set to fixed values determined by database selected. The parameters buttons (below the graph) are: %M The moisture content in % based on Moisture assessment table: Left-hand side axis °C The temperature in degree Celsius; Left-hand side axis C Capacitance in Farad; Right-hand side Y-axis C’’ Complex part of complex capacitance (Impedance Z = 1/(j*2*pi*frequency*(C-jC’’)) %DF Dissipation factor*100 = Loss current*100 / Capacitive current = C’’*100/C %PF Power factor*100 = Loss current*100/Total current = C’’*100/(sqrt(C’’^2+C^2)) Based on settings of “Settings” (lower part of righthand section of window) the frequency sweep data are plotted differently: Frequency (Hz) Frequency for data to be plotted Act. Energy (eV) Activation energy if ITC temperature correction is enabled Temperature By select a temperature you activate (°C) ITC temperature correction to selected temperature (otherwise, select None) 12 IDAX Monitoring ZP-AG02E AG033573AE 4 Sweep and temperature settings 4.2 Sweep 4.3 Temperature In the Sweep tab, the measurement sweeps are presented. At left-hand side the frequency sweeps are listed labeled with Date+Time. In the temperature tab, the measurement temperatures are presented. At left-hand side the temperature labeled with Date+Time is listed (format according to computer settings) at the right hand the temperature at the specific time. Note One or more parameters (e.g. C and %DF) to be plotted need to be activated; otherwise the graph will be empty. The parameters buttons (below the graph) are: C Capacitance in Farad; Right-hand side Y-axis C’’ Complex part of complex capacitance (Impedance Z = 1/(j*2*pi*frequency*(C-jC’’)) %DF Dissipation factor*100 = Loss current*100 / Capacitive current = C’’*100/C %PF Automatic entry Measurement temperatures may be read using either automatic logging device (default) or logfile. Automatic logger use Modbus data interface and is connected via LAN (Ethernet). In order to use it the IP address or hostname must be entered in the field “IP / Hostname” Power factor*100 = Loss current*100/Total current = C’’*100/(sqrt(C’’^2+C^2)) You may change interval at which data are read and saved. It must be verified with specifications of logging device if other parameters need to be changed in case different logger than Querx-PT100 is used. Use any compatible temperature logger with Modbus TCP interface. Manual entry ▪▪Press “Add” button to enter temperature manually. ▪▪To delete a temperature data point, press “Del”. ▪▪Delete all data points by pressing “Clear”. ▪▪Load temperature data points by pressing the “Load” button (more information about “Load” see section “Loading a temperature profile” below). ▪▪The “Edit” function is activated by double-clicking on a temperature in the list. The data points are automatically sorted by date/time and extrapolated before after covered times (using AG033573AE ZP-AG02E IDAX Monitoring 13 4 Sweep and temperature settings two last data points if more than one data point). If you need two constant temperatures, e.g. 100°C and 120°C use 4 data points (two at 100°C and 2 at 120°C). Note If no temperature is entered “Ambient Temperature” from Nameplate is used. Loading a temperature profile It is also possible to load a complete temperature profile. The file should be semicolon separated *.csv with the following format: YYYY-MM-DD HH:MM;Temperature Example YYYY-MM-DD HH:MM;Temperature can be: 2013-09-19 09:42;21,5 The first row means 19th (19) September (09) 2013, at 09:42 (24h syntax). Temperature in degree Celsius is shown after the semicolon. 1] By pressing “Load” button, an Open dialog window will appear showing all files with extension “.csv”. The “Load” function accepts both point and comma as decimal separator. Note 14 By changing view to show all files “*.*” it is possible to show files created e.g. as *.txt IDAX Monitoring ZP-AG02E AG033573AE 4 Sweep and temperature settings AG033573AE ZP-AG02E IDAX Monitoring 15 5 Export and Report 5 Export and Report 5.1 Export and report 1] Press the “Export” button to export all measurement data into a *.txt-file 2] Pressing the “Report” button connects data to Microsoft Word and opens a report dialog where pre-defined report templates are available. 3] Select “Monitor_Example_A4” and press “Generate”. Note 3] Below you see the data “Overview (picture)” that earlier was placed under the Overview name. By delete the square (the overview picture from template) and then drag-anddrop e.g. Sweep (Picture) to same location, you have changed the template. All graphs/pictures will be in report as in SW, if you have enabled only %DF in Overview graph, only %DF will be present in Overview graph in report. 4] Save it under a new name that will appear under Template next time you press “Report” button. Design a personalized report The most simple way of designing a personalized report template is to select an existing template and then modify it. Example 1] Select “Monitor_Example_A4”. 2] Press “Modify”. The “Monitor_Example_A4” report can now be modified under “File”. You may design the report using normal Word functionality and “drag-and-drop” data from the legend on left-hand side of report generator. 16 IDAX Monitoring ZP-AG02E AG033573AE 5 Export and Report 5.2 Settings ▪▪At left hand-side, bottom section, you may add a new table “New”, delete an exciting table “Remove” or “Import” a table into the SW (e.g. created by another SW installation). Export is available from bottom part of table (righthand side). ▪▪“Moisture Table” is the actual table selected • Name is simply the name. • Frequency affects the relation between dissipation factor and moisture, therefore the frequency for the table need to be stated. • Temperature affects the relation between dissipation The Settings Tab looks similar to standard IDAX SW, described in IDAX User’s manual. In bottom, middle, part of the window a section labeled Monitoring is added with the following functions: Sleep Time: (Default 15 minutes) After a measurement is completed, the system waits (sleep) for the selected time before next measurement is started. If a frequency sweep takes about 5 minutes to perform (1 kHz to 10 mHz, single frequency measurements) and sleep time is 15 minutes you will get a new sweep every 20 minutes. Selectable alternatives are none, 5, 10, 15, 20, 30, 60 or 120 minutes. factor and moisture, therefore the frequency for the table need to be stated. • Activation energy for the material assessed affects the ITC correction and therefore it need to be stated (estimated). • The table is the relation between %DF (dissipation factor/100) and moisture content. Values between points are interpolated using Log(%DF) and Log(Moisture%) and extrapolated from two last points outside covered range. Delete data pair by pressing the red “X” Add new data pair by pressing the green “Add” button. Press “Save” to save the data table. Press“Export” of table, to be stored or imported by other used. Time Format: (Default “Process Time”) Edit assessment limits Each DFR sweep has a Date+Time stamp (when it starts) and each temperature also has a date+Time stamp. You can select if data should be plotted with X-axis set as Date+Time (Computer time) or if time = 0 is set at start of first measurement sweep (Process time). Assessment limits for %DF, %PF and Moisture can be adjusted to suit particular requirements. These limits are applicable only to measurements during monitoring process. Edit Ranges (screen shot below) A moisture table may be selected which maps an ITC corrected dissipation factor at a certain frequency to a moisture content. ▪▪At left hand side you have available tables. The “Default” table comes with installation. AG033573AE ZP-AG02E IDAX Monitoring 17 5 Appendix A 5 Appendix A Individual Temperature Correction (ITC) An important property on most insulation materials is the possibility makes a master curve from a set of DFR data obtained at different insulation temperatures [1]. 10 DF at 20C DF at 40C DF at 60C DF at 80C Dissipation factor 1 Figure 2. Master curve at 20°C, dry Kraft paper 0,1 Since the master curve now describe the relation between frequency and temperature, dielectric parameters such as the dissipation factor (DF) at 50 Hz can now be plotted as function of temperature [2]. See Figure 3. 0,01 0,001 0,001 0,01 0,1 1 10 Frequency, [Hz] 100 1000 Figure 1. DFR of dry mass-impregnated Kraft paper at different temperatures. To create a master curve, you prepare the insulation sample and measure the sample at different temperatures while making sure that other entities such as moisture content is kept constant. See Figure 1. The temperatures in Figure 1 are 20°C (blue, lowest dissipation factor at 1 Hz), 40°C (green), 60°C (orange) and 80°C (red, highest dissipation factor at 1 Hz). This technique is used to establish individual temperature correction factors (ITC) [3] to correct measurements performed at a higher, or lower, than a reference temperature of e.g. 20°C. For example if measure the DF at 50 Hz of the insulation material in Figure 1-3 at 40°C, the DF is about 0,004 or 0,4%, see figure 1 (or Figure 3). By measure a frequency sweep and plot it as function of temperature, the estimated dissipation factor at 20°C is about 0,005 (0,5%). The curves are then shifted in frequency by using Arrhenius equation with activation energy as a single parameter and temperature as variable. Figure 2 show the master curve created from measurement data in Figure 1. The activation energy is 0.9 eV. Figure 3. DF at 50 Hz as function of temperature (°C) A similar application is to estimate the DF at a high operating temperature based on a measurement at ambient temperature. In Figure 4, the DF as function of frequency is measured on an about 100 m oil-filled 400 kV cable at about 20°C; the cable connects a Generator Step-Up transformer to the substation. 18 IDAX Monitoring ZP-AG02E AG033573AE 5 Appendix A REFERENCES [1] U Gafvert, “Condition Assessment of Insulation Systems, Analysis of Dielectric Response Methods, NORD-IS 1996 [2] ITC patent. US2010/0106435 A1 [3] M Ohlen et al, Dielectric frequency response and temperature dependence of dissipation factor, TechCon Asia Pacific, Australia, 2009 Figure 4. DF as function of frequency for an oil-filled 400 kV cable The DF is high, about 0,01 (1%) at 50 Hz but is it critical or not? By looking at the 50 Hz DF as function of temperature, see Figure 5, heat dissipation calculations showed that the if DF at 60-80°C is above about 10%, there is a large risk of a thermal runaway breakdown. The cable was replaced prior any failure. Figure 5. DF at 50 Hz as function of temperature. Data from figure 4. Other examples are when evaluating new of modified insulation materials. A manufacturer of Kraft papers for bushings was evaluating different modifications in order to lower the DF. The new material had significantly lower DF at 20 °C, however, DFR measurement showed increase loss at lower frequencies and consequently, the 50 Hz DF was higher at 90°C compared to the original bushing paper. AG033573AE ZP-AG02E IDAX Monitoring 19 Your “One Stop” Source for all your electrical test equipment needs ▪▪Battery Test Equipment ▪▪Cable Fault Locating Equipment ▪▪Circuit Breaker Test Equipment ▪▪Data Communications Test Equipment ▪▪Fiber Optic Test Equipment ▪▪Ground Resistance Test Equipment ▪▪Insulation Power Factor (C&DF) Test Equipment ▪▪Insulation Resistance Test Equipment ▪▪Line Testing Equipment Megger is a leading global manufacturer and supplier of test and measurement instruments used within the electric power, building wiring and telecommunication industries. 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Printed matter No. ZP-AG02E Doc. AG033573AE V01a 2017
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