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Megger IDAX Series Скачать руководство пользователя страница 15

IDAX

15

© 2009 Megger AB

In Test Browser select Measurement Plan file !!C12 (UST), carefully read and follow the
instructions. Or follow the instructions below.

1. Make sure that preparation procedures (both IDAX and Specimen) have been followed.

2. Connect the output to the lower capacitance connector.

3. Connect Current 1 and Sense 1 to the top capacitance connector.

4. Remove possible ground connections from somewhere.

5. Turn on the output switch activate the output and then start the measurement.

6. Wait until measurement is finished or abort earlier by stopping the measurement.

Grounded Specimen Test (GST) Measurement

Содержание IDAX Series

Страница 1: ...2009 Megger AB IDAX User s Manual...

Страница 2: ...rol Part II Results User Interface 25 26 1 Results Menus and Commands 63 2 Test Browser Part III IDAX Error Messages 66 70 1 347 Output voltage is not within specified limits 70 2 361 Overvoltage 70 3...

Страница 3: ...re given in sections Specifications System and accessories Safety precautions 1 1 1 Specifications The Insulation Diagnostic System IDAX measures the insulation impedance at different frequencies for...

Страница 4: ...UST 1 UST 2 UST 1 GST Guard 2 UST 2 GST Guard 1 UST 1 2 GST Calibration Calibration box allows field calibration recommended interval 2 years General Mains Input nominal 90 265 V ac 50 60 Hz Power Co...

Страница 5: ...IDAX 5 2009 Megger AB 1 1 2 System and Accessories 1 1 2 1 IDAX 300 System and Accessories IDAX 300 Transport case Cables...

Страница 6: ...d between mains outlet protective ground and the test object protective ground then additional measures described in local safety standards should be applied to ensure personal safety The measurement...

Страница 7: ...ower ON OFF switch Turns unit on and off b Mains connector For connecting to mains outlet c Fuse Use small screwdriver to gently pry out to change the fuse F1 2A slow blow Interface d USB Port for con...

Страница 8: ...tor output connector h Active Red high intensity LED Is lit when the output is switched on dark when the output is switched off External i AMPLIFIER Connector for external amplifier Input j Input 1 an...

Страница 9: ...s theoretical models used for presenting measurement results 1 4 1 How Impedance is Measured IDAX measures impedance By measuring the impedance at one point i e at a specific frequency and amplitude p...

Страница 10: ...angular Two simple models which are usually used in circuit analysis although more seldom in insulation analysis are capacitance C and resistance R The equivalent RC circuit models available are serie...

Страница 11: ...of the sample described in terms of the geometrical capacitance C0 has to be defined In the illustration below a vacuum or air filled capacitor of defined geometry is shown Since no material is betwe...

Страница 12: ...ted as follows The impedance value Z used in the calculation is the first measurement point in the actual measurement 1 5 Getting Started with IDAX This describes how to perform a diagnostic measureme...

Страница 13: ...necting IDAX 1 5 1 Measurement 1 Make sure that IDAX is properly connected to mains outlet 2 Turn on IDAX using the mains switch POWER on the front panel The IDAX performs a self test and start up pro...

Страница 14: ...equence when using IDAX 300 The specimen to be measured using the built in capacitance box built into the system that terminates at the front panel The respective capacitances are C10 2 5 nF C12 4 7 n...

Страница 15: ...nd Specimen have been followed 2 Connect the output to the lower capacitance connector 3 Connect Current 1 and Sense 1 to the top capacitance connector 4 Remove possible ground connections from somewh...

Страница 16: ...from the connection pins 5 Turn on the output switch activate the output and then start the measurement 6 Wait until measurement is finished or abort earlier by stopping the measurement 1 5 1 2 Compar...

Страница 17: ...moved between test 2 and test 3 between test 4 and test 5 If use IDAX 206 IDA 200 on a three winding transformer the leads need to be moved between every test If using IDAX 300 with two electrometers...

Страница 18: ...lue is the output voltage from the second electrometer The output voltage from the electrometer is a function of the current through the sample 3 The instrument stops automatically after the last meas...

Страница 19: ...ch parameters are of interest to the user the measurement data can be presented using different models E g in the tand model the dissipation and or power factor as well as capacitance can be displayed...

Страница 20: ...Hz Data tab is active 1 5 4 Selecting Models 1 Select Configuration Models in Results window and all available models will be presented as shown below In this picture both the Dielectric and C PF Tan...

Страница 21: ...system hard disk or the measurement computer s hard disk on an IDAX 300 system and can be opened and analysed at any time For comparison purposes many measurements can be loaded into the same Results...

Страница 22: ...and current curve forms 1 6 1 Message Window Messages from IDAX system to the user will be displayed in the Messages window For example if a measurement was aborted prematurely by the program the rea...

Страница 23: ...l control The gain of the input channels can be adjusted with the two vertical slide bars next to the Grid check box at the oscilloscope window The voltage range is displayed beside the Ch0 and Ch1 ch...

Страница 24: ...eset The settings for a cable set can be edited What the different settings means is explained in this table Generator Input 1 Input 2 Ground R Ohm Resistance of centre conductor Resistance of centre...

Страница 25: ...every two years 1 6 8 Calibration Procedure IDAX 300 It is recommended to calibrate the IDAX 300 at least once a year There are two options regarding calibration of IDAX 300 The IDAX unit can be sent...

Страница 26: ...files etc Edit Menu Editing and changing properties of opened measurements Diagram Menu Zooming features View Menu Selection of presentation form Configuration Menu Configuration of Results window set...

Страница 27: ...e As Save the current template under a new name Load D file Temporarily load a measurement file into Results Import Import measurement data Export Export measurement data Print Print short summary of...

Страница 28: ...IDAX User s Manual 28 2009 Megger AB 2 Select appropriate object template by using Browse button and press Open 3 Enter name for the new object for example Test capacitor obj and press OK...

Страница 29: ...s 2 From File menu select File New Measurement Template enter a name e g template icf for new template and press Save New empty template will appear in Text View mode for editing See also section IDAX...

Страница 30: ...nt file s is imported Note Before creating new Measurement Sequence at least one measurement template must be associated with the test object 1 To create new test sequence select New Measurement Seque...

Страница 31: ...files for selected measurement object using this command It invokes a dialog window where user can manipulate with available Measurement Templates see picture below This dialog window can be also inv...

Страница 32: ...equence Object All sweeps in all data files in all Measurement Sequences under selected Object 2 1 1 5 File Remake Measurement In cases when user is dissatisfied with a certain measurement it is possi...

Страница 33: ...ingle measurement files D files During loading a Temporary Object and Temporary Sequence are created as shown in picture below All subsequent data files are opened under the same Temporary Sequence Th...

Страница 34: ...ct Templates Import selected Object Templates 2 1 1 9 1 File Import IDA Zip File Short cut keys Ctrl Alt I Import the data in from archived izf format Data are inserted among existing measurements pre...

Страница 35: ...009 Megger AB 4 Select the Measurement Sequence 5 Select measurement s to be imported By default all measurements located in given directory are imported Deselect those which not to import by unchecki...

Страница 36: ...n be imported from a selected location on the IDAX hard drive or user s computer It is done by invoking a dialog window shown below from menu File Import Measurement Templates 1 Choose directory where...

Страница 37: ...location on the IDAX hard drive or user s computer It is done by invoking a dialog window shown below from menu File Import Object Templates 1 Choose directory where the template s to be imported are...

Страница 38: ...rt of the data in an archived izf format By exporting data into an IDA Zip File the data structure is preserved It is possible to export individual measurements Object and Measurement Sequence informa...

Страница 39: ...rface 39 2009 Megger AB Moreover it is possible to export also the measurement file itself by checking checkbox Include D File which may be favourable when exporting to floppy disk 2 1 1 10 3 Header E...

Страница 40: ...IDAX User s Manual 40 2009 Megger AB Export without header 2 1 1 10 4 Point Comma Point as a decimal separator Comma as a decimal separator...

Страница 41: ...w shown below from menu File Export Measurement Templates 1 Select templates to be exported side from available templates in the left hand 2 Press Add button or double click by left mouse button 3 Cho...

Страница 42: ...te 1 Select it from the right hand side from selected templates 2 Press Remove button or double click by left mouse button 2 1 1 11 File Print Shortcut keys Ctrl P The Print command allows user to pri...

Страница 43: ...special set of drivers only option available when creating report on IDAX MS Word Create Report using features Microsoft Word text editor Requires MS Word application installed on computer 2 1 1 12 1...

Страница 44: ...1 1 12 2 MS Word Report MS Word report generator allows for designing viewing and printing reports using Microsoft Word features When invoking MS Word report generator a dialog window allows for choos...

Страница 45: ...made from menu Configuration Program where the appropriate executable file is selected in dialog box Now the data file loaded into Results can be sent to the chosen external program from File Send to...

Страница 46: ...4 File Rename File Folder 1 Select the file or folder to be renamed 2 Choose Rename File Folder from menu or right click on the file or folder 3 Type new file or folder name and press Enter 2 1 1 15 F...

Страница 47: ...object s or text to clipboard Copy All Copy all selected objects or text to clipboard Cut Cut object s or text to clipboard Paste Paste object s or text from clipboard Select All Select all object s o...

Страница 48: ...7 Edit Toggle Sweep Toggles between Mark Sweep and Unmark Sweep i e displays or hides the selected sweep s in the graph table and the values at power frequency The effect of Toggle Sweep depends on p...

Страница 49: ...is hidden 2 1 2 10 Edit Change Sweep Color Changes colour appearance of selected sweep Change Sweep Color invokes a colour dialog window from which a desired colour for sweep can be selected This com...

Страница 50: ...IDAX User s Manual 50 2009 Megger AB 2 The marked area will the be magnified to cover the entire graph area as shown below...

Страница 51: ...ment Templates 2 1 4 1 View Browser Toggles between hide and show Test Browser It may be convenient to hide it in order to maximise the area for graphical output as well as for table and when editing...

Страница 52: ...ys information relevant to given measurement occasion Measurement Sequence can be edited using also Text view mode The changes made here will however be unique for the given Measurement Sequence only...

Страница 53: ...to existing object s Information Measurement Plan Measurement Plan displays the same information as Measurement Template and can be edited also using Text view mode In the Text view mode appearance of...

Страница 54: ...owever multiple variables and commands can be entered in the same row if they are separated with semicolons When the measurement is started current Measurement Plan is copied to a file LastC icf in D...

Страница 55: ...measured values loss tangent power factor PF capacitance C and others in Table mode also hum current DC offset and object s capacitance are shown for specified configurations 2 1 4 8 View 50 60 Hz Dat...

Страница 56: ...les D files but their editing is disabled 2 1 4 10 View Show Measurement Templates Shows or hides Measurement Templates associated to objects in Test Browser Hiding templates saves space in Test Brows...

Страница 57: ...n the alternatives appear as a drop down menu see below and user can select the appropriate one 3 Highlighting settings allows user to change the color scheme for appearance of text editor see example...

Страница 58: ...llows the names scales grid prefixes etc on the axes to be modified The dialog is divided into three parts Title X axis Y axis 2 1 5 2 2 1 Autoscale Autoscale automatically sets the scale so that all...

Страница 59: ...lues are not possible to display in logarithmic scale 2 1 5 2 2 5 Precision Precision sets how many digits of the point is presented in the Graph Table 2 1 5 2 2 6 Prefix Scientific Changes between Pr...

Страница 60: ...et to white 2 1 5 3 Configuration Table Allows user to choose between displaying or hiding the disturbance data when in Table mode 2 1 5 4 Configuration Power Data Configures display of desired values...

Страница 61: ...urther data analysis This is done by providing the search path to this program as shown below 2 1 5 6 Configuration Models Shortcut keys Ctrl M Command Configuration Models invokes a window where avai...

Страница 62: ...lts window where one can choose which parameters are to be shown Below the Dielectric and C PF Tan Delta models are chosen to be used in Results and e as a parameter is displayed in the graph 2 1 6 Im...

Страница 63: ...paration of measurements and presentation of results Command and Variable Reference Reference of programming directives IDAX Error Messages Error messages generated by IDAX and possible countermeasure...

Страница 64: ...ce is created in order to make a measurement and therefore at least one Measurement Template must be associated with the Object Measurement structure In order to perform a measurement a Measurement Se...

Страница 65: ...W CH measurement of insulation between high voltage winding and ground 2W CHL measurement of insulation between high and low voltage windings 2W CL measurement of insulation between low voltage windin...

Страница 66: ...emplates Object Templates are templates which are recommended to use when creating new objects Available pre specified templates are Test Capacitor General Specimen Autotransformer with Tertiary Bushi...

Страница 67: ...typing error 210 Boolean is expected for check box CB Check boxes can have only Boolean values 211 Not an integer Parameter values must be of the same type as in the parameter declaration 212 Not a re...

Страница 68: ...ments in a command 314 No Amplitude Amplitude must be assigned See User s Manual Appendix A 5 for options 315 No Frequency Frequency must be assigned See User s Manual Appendix A 5 for options 319 No...

Страница 69: ...x error in Calibration or Selftest files 361 Overvoltage An overvoltage occurred 364 Measured capacitances don t match Disagreement between values of capacitance measured for different configurations...

Страница 70: ...ted due to overvoltage detected on measuring electrode Lo Potential difference between signal ground and real ground exceeds limiting value Possible reasons and countermeasures 1 Ground electrode is n...

Страница 71: ...10 higher value than measured capacitance select another measurement configuration if possible decrease in test voltage allows for measuring at higher frequencies 3 6 367 Measured DC current MaxDCCur...

Страница 72: ...6 60 Current Range 3 D Diagram Zoom In 49 Zoom Out 49 51 Directives Emmision 3 Immunity 3 LVD 3 Mechanics 3 Dissipation factor 10 E Edit Change Sweep Color 47 49 Copy 47 Copy All 47 48 Cut 47 48 Mark...

Страница 73: ...ies 5 IDAX 206 System Control Comments 21 Message Window 21 Oscilloscope 21 Selftest 21 Impedance Measurement 9 Models 10 Impedance Models 62 Import 34 File to Structure 34 IDA Zip File 34 Measurement...

Страница 74: ...3 User Interface 25 View Menu 51 S Safety 6 Scale 59 Scientific 59 Settings for Graph 58 Specifications 3 T Table Tab 19 Temperature 3 Operating 3 Storage 3 Test Browser 63 Data Structure 64 Measureme...

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