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FRAX User's Manual

© 2011 Megger Sweden AB

4.7

Views

There are several views available. The Nameplate view is always present and the "Magnitude
(Alt-M), Phase (Alt+P) and Magnitude / Phase (Alt+B) are also present when you first start your
software. You can easily change the view by clicking the view-tab above the view. Also you
can change views and create your own views, see further Graph views...

Below you see the Magnitude view with one measurement loaded.

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Содержание frax 101

Страница 1: ...2011 Megger Sweden AB Released in 2011 06 01 FRAX User s Manual Version 2 5...

Страница 2: ...er 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 w...

Страница 3: ...Disposal 2 Quick Start Tutorial 11 11 2 1 Saftey First 12 2 2 Preparatory Procedures 12 2 3 Start Up FRAX and Establish Communication 13 2 4 Create a New Test 14 2 5 Test Lead Connection 16 2 6 Test...

Страница 4: ...dit Menu 40 4 3 Configuration Menu 56 4 4 Windows Menu 57 4 5 Action Buttons 59 4 6 Legend 62 4 7 Views 5 Appendices 64 64 5 1 Appendix A Calibration Instruction 70 5 2 Appendix B Optional Active Prob...

Страница 5: ...ial winding collapse Hoop buckling Broken or loosened clamping structures Shorted turns and open windings Unique features of FRAX High accuracy Small size and low weight Powerful analysis tools that a...

Страница 6: ...ormer Windings using FRA and Chinese standard DL T 911 2004 FRA on Winding Deformation of Power Transformers Analog Output Channels 1 Compliance Voltage 0 2 20 V peak to peak Measurement Voltage at 50...

Страница 7: ...ont Panel Left hand side top down On Off On Off switch to turn the instrument On Off Switch labeled I On and 0 Off DC Input DC input to connect the AC DC adapter USB USB connector type B to connect a...

Страница 8: ...r for active probes Optional and available on order Caution risk of danger symbol Refers to follow instructions stated in User s Manual to ensure safety See Safety First 1 3 1 2 Rear Panel Left hand s...

Страница 9: ...round cable The separate earth ground wire should be the first connection made and the last removed Power connector Generator Yellow Generator output connected to Reference at Red Clip Reference Red R...

Страница 10: ...ou will find the navigation panel In the middle of the navigation panel you will find the controls for the pointer and buttons for left top and right click bottom The navigation panel also contains Te...

Страница 11: ...e in many situations However in field substation environments Bluetooth class 1 is recommended To configure a built in Bluetooth device please follow the manufacturers instruction To configure the Blu...

Страница 12: ...8 FRAX User s Manual Add the device called PAX Diagnostics A pass code is needed Enter the code 0000 four zeroes as the pass code Select the PAX Diagnostics device...

Страница 13: ...in Battery Pack and Charger As an option FRAX 101 is delivered with a built in battery pack and charger The battery is of Li Ion type 4 8Ah 11 1V The charger is powered from the standard AC DC adapter...

Страница 14: ...ls function make it possible to calculate almost any parameter based on the measured stored data FRAX uses the sine correlation technique This means that the input voltages are multiplied by a sine an...

Страница 15: ...the instrument and software as quickly as possible The objective is not to teach you every single detail but to familiarize you with the basic principles The quick start tutorial is divided into the...

Страница 16: ...connection to transformer at top of transformer if instrument is used on top of transformer The separate earth ground wire should be the first connection made and the last removed 2 Connect the test...

Страница 17: ...s Makes it possible to select a pre defined test template or design Sweep groups Use Measurement as Template Makes it possible to use an earlier measurement as template for a new measurement If you se...

Страница 18: ...Click Save to save the file Note that you can always add information to the Nameplate at any time This feature makes it possible to add notes during the measurement Fore more details see New Test in c...

Страница 19: ...reference is connected to H1 and the black measure is connected to H0 Connect FRAX test leads Make sure to remove paint and or rust from the nuts or bolts used on the flange for proper measurement gr...

Страница 20: ...ans for checking lead integrity and correct operation of the equipment is to perform the FRA self check using a standard test object This check is especially valuable for checking FRA test equipment s...

Страница 21: ...measurement earth ground together The result should be an almost straight line around 0 dB black 2 An open circuit measurement should in theory provide a 0 response i e a minus infinity dB response Ho...

Страница 22: ...E and several others Use the FTB 101 and make a test sweep If the hook up and the equipment is is good working order the sweep should look as the picture You can compare the results with the file FTB...

Страница 23: ...ide connector and the braid from the clip to the bottom connector Connect Measure clip to the right hand side connector and the braid from the clip to the bottom connector Also connect the bottom conn...

Страница 24: ...want to use the data in other software you can use the data files directly or export the data of your choice see Export under FRAX Software File menu 3 Installing FRAX Software Please select one of t...

Страница 25: ...Agreement 3 3 License Agreement Read the license and check the I accept the terms in the License Agreement checkbox This will enable the Next button To continue the installation press Next This will...

Страница 26: ...stallation Location Select the location to which the FRAX Software will be installed Make sure you have enough space available on your hard drive To continue the installation press Next This will take...

Страница 27: ...now ready to install the software To install the application press Install This will bring you to Installation Progress 3 7 Installation Progress The application executables and registry items are be...

Страница 28: ...rement File or Measurement Sweep in the test browser Also the buttons Add Sweep and Delete Sweep are included in this section of the window The large area in the middle presents the Nameplate and the...

Страница 29: ...25 FRAX Software During the first six months the program will report all abnormal program terminations to our software department for debugging purposes...

Страница 30: ...Makes a simple print out of the currently selected tab Add Sweep Ctrl A Adds an additional sweep into a measurement file Delete Sweep Ctrl D Deletes a sweep performed or empty from a measurement file...

Страница 31: ...ent as template for a new measurement In the Quick Test tab simply enter the measurement name of your choice and hit OK In the Multiple Sweeps tab you select one of the pre defined test templates cont...

Страница 32: ...surement file of your choice or use Select Test to find an earlier measurement in the database The Sweep names in the selected previous measurement are shown An X indicates the sweeps in the selected...

Страница 33: ...Please fill in the Nameplate no field is required Press OK Note that you can always add or change information to the Nameplate by clicking the Edit Nameplate button This feature makes it possible to...

Страница 34: ...figuration menu submenu Default Filename Settings The default directory will be My Docum ents on first start and then the directory you used last time You can change the file name to a name of your ch...

Страница 35: ...last time The FRAX software comes with a few examples of actual SFRA measurements as well as a reference measurment using the FTB 101 They are located in the installation folder usually C Program Fil...

Страница 36: ...show up in the Select Test database 4 1 4 Close Test Ctrl I The measurement that is selected in the test browser is closed if Close File in the File menu or Ctrl I is selected A Measurement can also...

Страница 37: ...can also create a new report template delete and or modify an existing template Creating new or modify is straightforward and is easily done when you have an open test file in the FRAX software The e...

Страница 38: ...have them in the FRAX software Make sure both models and views are loaded 4 1 6 Export Alt E Activate the function by clicking the Export button or selecting Export in the menu A Save As dialog will b...

Страница 39: ...e terminal settings especially if you are using custom sweep names that don t use the default sweep names Column type export Exports active sweeps to a txt file Make sure that only graphs you want to...

Страница 40: ...r s Manual CSV Export Exports the entire file selected sweeps or all visible sweeps to a csv file If you use selected view as data source make sure that only graphs you want to export are visible in t...

Страница 41: ...ron file Depending on computer capacity importing a file may take some time The Frameworx CSV import requires that the sweep data is structured as a valid CSV file The first column of the first row sh...

Страница 42: ...he sweep and possible data will be permanently deleted 4 1 11 Edit Nameplate Ctrl E Opens the measurements file Nameplate for editing Some of the fields have a drop down box if you fill in the field a...

Страница 43: ...ed sweep in Legend 4 1 16 Stop measurement F10 Stop active measurement 4 1 17 Exit Alt F4 Terminates the FRAX Software 4 2 Edit Menu Menu Command Description Copy View Copy the current view to the cli...

Страница 44: ...View and Copy Legend 4 2 4 Change Sweep Color Alt O This dialog allows you to change the color and line width of the selected sweep curve and change the thickness of the line The thickness of the line...

Страница 45: ...one of the available languages will change language in menus and dialogs in the FRAX software The language settings will also define what pre defined sweep name template to use for most languages you...

Страница 46: ...paced in a logarithmic scale per decade Example 200 P D between 10 Hz to 1000 Hz gives 400 measurement points logarithmic distributed between 10 Hz to 1000 Hz two decades In linear scale P D is the to...

Страница 47: ...ormed in reverse i e to measure from the highest frequency to the lowest This is a single setting for all bands On the FRAX 101 and 150 it is also possible to scale down the output voltage from the st...

Страница 48: ...20 2 M 1000 93 Omicron max 320 20 2 M 1600 145 Doble max 360 20 2 M 1800 163 FRAX max 6400 20 2 M 32000 4 3 4 Graph Settings Ctrl G In the Graph settings dialog you set auto scale or range and spacing...

Страница 49: ...he Graph Views dialog you can configure which graphs you want access to as a separate tab The default selections include Magnitude Phase and Magnitude Phase as shown below To select a graph check or u...

Страница 50: ...6 FRAX User s Manual To edit or delete a custom graph select the graph in the list and then click the Delete or Edit buttons To add a custom graph click the Add button and the following dialog is show...

Страница 51: ...type a name and a description in the box and click the Add button Enter a description and a number in the Graph Type box The number is used as a unique id for this particular graph You can also use p...

Страница 52: ...dB model is selected This is the most commonly used model Selected models are shown below the graphs in the main window and can be selected and de selected by clicking the small check box If Referenc...

Страница 53: ...els are very useful evaluate why curve deviate at low frequencies in short circuit measurements increase of R at lowest frequencies may be a poor contact change of L may be winding movement Also compa...

Страница 54: ...hase variables Vars come in radians and we want to plot in degrees we multiply the phase by 360 2 Pi ph2 ph1 ph0 The buttons Units Vars Func and Graph Types provide lists with available units variable...

Страница 55: ...in this area 0 3 dB may indicate severe winding deformation Interpretation at higher frequencies is not covered in this User s manual but below are Analyzers are used to help interpret data described...

Страница 56: ...top If more than three sweeps are selected the analyzer will only display the first three The calculations are performed automatically and the Conclusion is presented in the table To see the curves a...

Страница 57: ...6 RMF 1 0 Normal Winding RLF 2 0 RMF 1 0 and RHF 0 6 RLF represents the relative factor when the curve is in low frequency band 1kHz 100kHz RMF represents the relative factor when the curve is in medi...

Страница 58: ...zer selection dialog This brings up a dialog where the settings can be adjusted In bottom right corner you select if the evaluation variable is the correlation coefficient LRxy or the Rxy factor You c...

Страница 59: ...lt Filename Settings Specify the default filename settings that will be used in the New File Save As dialog Data time format YYYY MM DD hh mm ss Generate a file name of format YYYY MM DD hh mm ss txt...

Страница 60: ...into the edit field Once a new file has been created the number will be incremented You can select what number to start from 4 4 Windows Menu Menu Command Description Output window Ctrl O Toggle show...

Страница 61: ...57 FRAX Software 4 5 Action Buttons Action buttons for faster access to common functions 4 5 1 Graph Settings Same as the menu item Graph settings Ctrl G...

Страница 62: ...h Settings dialog 4 5 3 New Test Same as the menu item New Test Ctrl N 4 5 4 Select Test The same as the menu item Select Test Ctrl F 4 5 5 Edit Nameplate Same as the menu item Edit Nameplate Ctrl E T...

Страница 63: ...e selected sweep is already measured Measurement in progress Ready to start measurement You can press the button at any time If you are unsure of what action to take the application provides suggestio...

Страница 64: ...to change File If you have many sweeps or several files open at the same time a scroll bar will be shown to the right of the legend making it possible to scroll up and down to see all sweeps It is al...

Страница 65: ...different attributes Sweep function button Description or Enable Disable the sweep The color and line width can be set for each sweep You can change the color and line width by right clicking on the i...

Страница 66: ...agnitude Alt M Phase Alt P and Magnitude Phase Alt B are also present when you first start your software You can easily change the view by clicking the view tab above the view Also you can change view...

Страница 67: ...63 FRAX Software...

Страница 68: ...BNC connectors 2 meter length FraxCal software Note that the coaxial cables from the FRAX to the calibration box needs to be of equal length Connecting the equipment Install the FraxCal software on yo...

Страница 69: ...igure below The software will automatically detect the serial number of the FRAX unit and the last calibration date It will also automatically suggest current date to be the new calibration date The d...

Страница 70: ...ained from the software thus suggesting a separate calibration report to be created manually Do not forget to apply the sticker on the FRAX back panel informing the FRAX user about the last calibratio...

Страница 71: ...nce Connect as explained in the figure below Run standard sweep from 20 Hz 2 MHz When looking at standard view Magnitude Curve should be around 80 dB between 10 Hz 100 kHz Unclick Magnitude use model...

Страница 72: ...68 FRAX User s Manual To add model click Menu Configuration Menu Models Select CAL 510k...

Страница 73: ...69 Appendices On each CAL 101 there is a resistance value on the s n label To ensure the best possible verification enter this resistance value here In this example we have used 510 k...

Страница 74: ...Active Probes have been discontinued and is not included in this User s Manual However the FRAX SW version 2 5 still supports use of probes after installation of Models as in earlier FRAX SW versions...

Страница 75: ...ng k the voltage can be adjusted Examples k 0 2828 means output voltage 0 2828 10V 2 828 Vpeak 2 V RMS used by FRAnalyzer Omicron k 0 05 means output voltage 0 05 10V 0 5 V HP 4195A output voltage Ope...

Страница 76: ...e phase labeling is different note however you can always change name in the template e g change 1u 1v and 1w to e g R S and T In the IEEE Draft of PC57 149 it is recommended to follow the basic princ...

Страница 77: ...e removed on site then it shall be treated as two separate transformers Series reactors shall be measured from input terminal to output terminal on each phase a total of three measurements for a three...

Страница 78: ...d The low frequency range of this test is basically a low voltage measurement of the voltage dependent single phase excitation current 2 The End to End Short Circuit Short Circuit Self Admittance SC i...

Страница 79: ...wer factor measurement e g CHL 4 In the Inductive Inter Winding IIW Transfer Admittance TA measurement the signal is applied to a terminal on the HV side and the response is measured on the correspond...

Страница 80: ...ound braids made of tin plated copper ensure good contact make them easy to work with and increase life of service compared to e g aluminium The FRAX clamps handles both round and flat connectors Easy...

Страница 81: ...e of bushing up to 90 mm The M12 screw ensures good electrical and mechanical contact No risk of a clamp falling down due to heavy cables and braids The clamp is delivered with a M12 hat nut which can...

Страница 82: ...oaxial cable from FRAX Generator Yellow Reference Red Ground braid connected to ground Keep the braid straight along the bushing and ground the braid at the base of the bushing Ensure good connection...

Страница 83: ...nection black Cable strain relief Coaxial cable from FRAX Measure Ground braid connected to ground Keep the braid straight along the bushing and ground the braid at the base of the bushing Ensure good...

Страница 84: ...braid cable set consists of 4 x 3 meter tin plated copper braids Many transformers have bushings shorter than 3 m which suggests two braids one for each bushing to be enough when it comes to length T...

Страница 85: ...sy to use and versatile ground connection available The G clamp is easy to attach easy to tighten the braid which ensuring a quick and reliable procedure for shortest braid practice which is essential...

Страница 86: ...FRAX User s Manual 5 5 2 2 Ground braid connection The clamp can be attached to ground in many ways See previous section To attach and tighten the braid open up the braid plate by loosening the wing n...

Страница 87: ...and the braid plate Tighten the braid to create a straight line from the C clamp to the G clamp Tighten the wing nuts For extra flexibility when connecting the braids to ground the short braid with c...

Страница 88: ...C clamp to FTB101 Connect the Measure cable Attach the G clamp to ground on the FTB101 Connect the braid to the G clamp Connect the ground cable from FRAX to the G clamp Connect C clamp to FTB101 Con...

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