Megger Baker AWA-IV User Manual
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Megger Baker AWA-IV User Manual

Static motor analyzer
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  • Page 1 Baker AWA-IV Static Motor Analyzer User Guide...
  • Page 2 www.megger.com...
  • Page 3 Web: https://us.megger.com or https://us.megger.com/support/customer-support Information furnished in this manual is believed to be accurate and reliable. However, Megger Baker Instruments assumes no responsibility for the use of such information or for any infringements of patents or other rights of third parties that may result from its use.
  • Page 4 Please provide the specific model and serial number of the instrument. 2. Equipment returned to Megger Baker Instruments must be packaged in such a manner that it will reach the factory undamaged from transit.
  • Page 5 Equipment Description: Testers for Surge, DC Hi-Pot, and Winding Resistance of motors. Equipment Model Designations: Baker AWA-IV-2, Baker AWA-IV-4, Baker AWA-IV-6, and Baker AWA-IV-12. Application of Council Directive 72/23/EEC on the harmonization of the laws related to Member States relating...
  • Page 6 Notices Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 7: Table Of Contents

    Contents 1 — Baker AWA-IV Safety and General Information ............1 Instrument Notices ........................1 General ............................1 When Used with a Baker Power Pack ..................1 Safety Information ........................1 General Safety Warnings ......................2 Test Related Warnings ......................... 2 Equipment Stop Button ......................
  • Page 8 Using the Tests Tab ........................57 Test Setup ..........................58 Temperature/Resistance Test Setup Window ................58 Manually Entering Resistance Measurements ................61 Wye-wound Resistance Measurement ..................61 Delta-wound Resistance Measurement ..................61 Coil Resistances .......................... 61 Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 9 Running an Automatic Test ......................95 Reviewing Test Results and Data ....................98 Single-phase Testing ........................101 Single-coil Testing ........................102 Go/No Go Surge Testing ......................102 Single-coil Testing Using a Test Reference ..................107 Printing Reports ......................... 111 www.megger.com...
  • Page 10 False P-P EAR Failures ........................117 Surge Test Underpowered ......................117 Surge Testing through Capacitors....................118 6 — Using the Baker AT101 ZTX with Baker AWA-IV Analyzers ........ 119 Low-impedance Armature or Coil Testing ................119 Principles of Armature Insulation Testing ................119 Connecting Baker AWA-IV to the Baker ZTX Accessory ............
  • Page 11 Appendix B — Technical Specifications and Applicable Standards ......139 Calibration Information ......................139 Baker AWA-IV 2 kV and 4 kV Tester Specifications ..............139 Baker AWA-IV 6 kV, 12 kV, and 12 kVHO Tester Specifications ..........141 Environmental Specifications ....................142 Applicable Standards ......................... 143 Appendix C —...
  • Page 12 Contents Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 13: Baker Awa-Iv Safety And General Information

    This will cause problems with the analyzer’s operation. NOTICE: A power pack is purchased with and calibrated to the Baker DX or Baker AWA-IV tester host that it is shipped with. The tester is certified to work only with that power pack.

  • Page 14: General Safety Warnings

    NOTICE: The ground-fault system on the Baker AWA-IV requires a proper ground for the tester to operate properly in all modes. When the Baker AWA-IV tester is used as a host to a power pack, improper grounding can also affect...

  • Page 15: Equipment Stop Button

    Baker AWA-IV Safety and General Information Equipment Stop Button The Baker AWA-IV tester features a red Equipment Stop (E-Stop) button on the front panel of the unit. Use it to quickly discontinue a test and to shut off power to the unit’s high-voltage circuitry.

  • Page 16: Safety, Hazard, And Warning Symbols On The Tester

    Baker ZTX E-stop and Remote E-stop The Baker ZTX can be used with the Baker AWA-IV 6/12kV models. The Baker ZTX unit and the remote E-Stop unit are both equipped with a red Equipment Stop button. The Equipment Stop button is on top of the Baker ZTX unit and it is in the line with the status lights on the remote E-Stop accessory.

  • Page 17: Baker Awa-Iv Instrument Overview

    2 — Baker AWA-IV Instrument Overview The Baker AWA-IV automatically performs repeatable, user-programmable tests to thoroughly assess the strength of a motor’s insulation and circuit. The analyzer can be programmed to perform a specific set of insulation tests in the shop or office, then used as programmed in the field.

  • Page 18: Baker Awa-Iv 2 Kv/4 Kv Model Front Panel

    Baker AWA-IV 2 kV/4 kV Model Front Panel All Baker AWA-IV series analyzers feature a large eight-inch touch screen with a graphical user interface. The interface features a logical layout of large touch icons that improve ease of use. Each tester’s voltage capacity is identified by the markings found just below the touch screen.
  • Page 19 Do not force the knob; turning the knob harder does not cause voltage to ramp any quicker and may damage the instrument. High-voltage test leads—The Baker AWA-IV uses high-voltage test leads for surge, Baker ZTX, and DC testing. Three test leads (red) and a ground lead (black) are provided for motor test connections.

  • Page 20: Baker Awa-Iv 6 Kv/12 Kv Model Front Panel

    Baker AWA-IV Instrument Overview Baker AWA-IV 6 kV/12 kV Model Front Panel Fig 4: Front panel controls for Baker AWA-IV 6 kV and 12 kV models. Item Description VGA port—used to connect the tester to a larger monitor (not included) for easier viewing of test results.

  • Page 21: Baker Awa-Iv 6 Kv Model Distinctions

    Test leads 1–3 select buttons. High-voltage test lead, black, ground. High-voltage test leads—The Baker AWA-IV uses high-voltage test leads for surge, Baker ZTX, and DC testing. Three test leads (red) and a ground lead (black) are provided for motor test connections. Both sides of the connection clips must be in contact with the terminal of the motor being measured.

  • Page 22: Setting Up The Baker Awa-Iv Tester

    Making Basic Connections and Starting the Analyzer 1. Place the Baker AWA-IV on a large table or bench. Check the power switch and ensure it is in the Off position. 2. Plug one end of the power cable into the line connector on the left side of the analyzer and plug the other end into a grounded wall socket.
  • Page 23 Baker AWA-IV Instrument Overview The following image provides an example of a typical connection to a 3-phsae motor. Best practices: ƒ Label phase A, B, and C leads on the motor. Leads 1, 2, and 3 are labeled on the cables near the connectors.

  • Page 24: Configuring A Printer

    Black lead to ground. Configuring a Printer The Baker AWA-IV comes with a set of printer drivers installed. More printer drivers may be added if necessary. Connect the analyzer to the printer then run the configuration process via the Windows Control Panel application.

  • Page 25: Database Management And Maintenance

    Consequences of Not Organizing Data Because the Baker AWA-IV can be configured to store every test it performs, we recommend that you establish a structure that everyone performing tests will follow. Consider the following example. A maintenance program is established to test motors at seven production plants, each in a remote location.

  • Page 26: Creating A New Database

    6. Click on the Save button. A database will be created and opened that has one default motor and the default Test IDs. At this point, begin entering new motors using the Data tab Nameplate view. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 27: Opening An Existing Database

    3. Alternatively, click on the Open database icon in the toolbar. Fig 10: Selecting an existing database. 4. A Select Baker AWA-IV Database window appears to help you locate and select the desired database. It will default to the folder that has been selected in View-Options-File Locations menu item.

  • Page 28: Using Multiple Databases

    Do not delete records associated with Motor IDs. Always back up a database before deleting records or manipulating the database in any way. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 29: Data Transfer Feature

    1. To create a new database, select the File  New menu item or click on the New icon in the toolbar. 2. To start the data transfer feature, click on Database in the main menu then Data Transfer, or click on the Data Transfer icon in the toolbar. Fig 12: Data transfer buttons. www.megger.com...
  • Page 30 Pick the default database or choose another database to transfer data from as needed. Fig 13: Select source Baker AWA-IV database 4. After selecting the source database, click the Open button. The Data Transfer window appears with the source database opened on the left side.
  • Page 31 Motors IDs added, the number of records updated, and Test ID data updates (if update Test IDs box is checked). If the transfer encounters problems, it logs the Motors ID and reason the transfer failed. You can print this log by clicking on the Print Log button. www.megger.com...

  • Page 32: Transferring Test Ids

    5. As in the motor and test result record transfer, the application writes to the Transfer Log, recording what action has been taken. When finished transferring Test IDs, click on the Close button to return to the Data Transfer window. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 33: Archiving A Database

    Fig 17: Archive. The archive feature provides an easy means to back up Baker AWA-IV data. The feature is also the best way to move a database to another storage device or computer. If the archive option is used to copy a database, use the Restore option (discussed in the next section) to extract the database from the storage device back to the source.

  • Page 34: Restoring A Database

    WinZIP will need to be installed on the system. To view archived data with the software, the database must be restored first. 1. Click on Database then Restore. Fig 20: Restore database menu item. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 35 3. After choosing the archived database to restore, choose the folder to which the archived database will be extracted. If the database is to be restored to a different folder, relocate to that folder. When the appropriate folder is located, click the OK button. Fig 22: Locate the proper folder needed. www.megger.com...
  • Page 36 Windows Explorer then restore again, or restore using another folder that does not contain the same named database. 6. After the archived database is extracted, the software will return to the main screen. Click on File  Open to open the newly-restored database. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 37: Baker Awa-Iv Software Overview

    Test IDs. Pre-configured motors are identified by Motor IDs. Motor IDs are stored in the Baker AWA-IV’s database along with the Test ID to be used when testing that motor. Additional information about the motor such as manufacturer, serial number, horsepower rating, frame size, speed, operating voltage, and current are also stored in the Motor ID.

  • Page 38: Creating A New Database

    Click on the Save button. A database will be created and opened that has one default motor and the default Test IDs. At this point begin entering new motors using the Data tab Nameplate view. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 39: Opening An Existing Database

    File  Open while using the software, or click on the Open Database icon while using the software. A Select Baker AWA-IV Database window appears to help you locate and select the desired database. It will default to the folder that has been selected in View  Options  File Locations menu item.

  • Page 40: Using Version 4 Software For The First Time

    This information will be used to track each data record and to identify which Baker AWA-IV analyzer acquired the given record. The tester information is usually entered at the manufacturer before the Baker AWA-IV is shipped.

  • Page 41: Main Window

    To view test results for a given motor or to perform a test on a motor, select the desired motor from the database. The Baker AWA-IV software Main window is split into two panes. The left pane contains three different tabs—...

  • Page 42: Main Menu

    Databases that are open are listed just above the Exit item. Clicking on Exit closes the application. The Print menu item provides access to printing features by opening the Report Generator. Fig 30: File menu. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 43: View Menu

    Baker AWA-IV Software Overview View Menu The View menu allows you to specify whether the Toolbar and Status Bar will be displayed in your view of the user interface. A check mark next to an item indicates that the feature will be displayed.

  • Page 44: Database Menu

    Window Menu The Window menu provides you with functions for selecting which database to use (if several are open) along with options for displaying windows within your screen. Fig 33: Window menu. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 45: Tools Menu

    The Tools menu provides access to other basic tools including WordPad, MS Paint, and a web archive file viewer. The Baker AWA-IV generates reports in a mhtml format (optionally); these files can be viewed using the web archive file viewer. WordPad can be used to view files output in MS Word format, and the MS Paint program is handy for annotating screen captures.

  • Page 46: Help Menu

    This window is typically used to change the language being used in the application, and to enable other program features such as debug modes and allowing data transfers to overwrite nameplate information. NOTICE: Only knowledgeable users or administrators should make changes here. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 47 Baker AWA-IV Software Overview When the Edit button is clicked, followed by clicking on Cancel in the Password dialog box, The Tester Information Viewer allows access to a few basic parameters such as changing the language and enabling debug elements in testing.

  • Page 48: Overriding The Open Ground Interlock

    Make the necessary adjustments then click on Save Changes. Fig 38: Tester Information Viewer after entering default password. NOTICE: Some information shown in the viewer is available only to authorized Megger Service personnel and cannot be changed by the user or client administrator.

  • Page 49: Toolbar

    Baker AWA-IV Software Overview Toolbar The Toolbar contains several icons that provide shortcut access to several features that can also be accessed from the Main menu. From left to right the icons (and their features) include New, Open, Print, Transfer Motors, and About.

  • Page 50: Tabs

    It becomes the current motor. Expand a motor location by clicking on the plus sign or contract a location by clicking on the minus sign. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 51: Motor Id Tab

    Baker AWA-IV Software Overview Motor ID Tab The Motor ID tab alphabetically lists all motors currently stored in the database. When you double-click on a motor in the list, the list item is highlighted and the Motor ID appears in the field found just above the list. The motor’s information is also loaded into the Main Display Area to the right.

  • Page 52: Route Tab

    This tab also allows editing and printing of these routes. Click on the Edit Route button to open the Route Editor dialog box, which allows you to add, rename, and delete routes. You can also add, remove, and change the Motor ID list order. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 53: Adding A Route

    Baker AWA-IV Software Overview Fig 43: Route Editor. Adding a Route 1. To add a new route, click on the Add button at the top of the window. The Routes field will be blank so you can enter a new Route ID. After entering the new ID, start adding Motor IDs from the Available Motors list on the right to the Route Motors list on the left.

  • Page 54: Editing Motor Ids On An Existing Route

    7. When you have finished editing a route, click on the Save List button to save your changes. 8. Click on Close to return to the Route tab in the Main window. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 55: Modifying List Elements Displayed In The Motor Id And Route Tabs

    Baker AWA-IV Software Overview Modifying List Elements Displayed in the Motor ID and Route Tabs The information presented in the motor lists within the Motor ID and Route tabs can be customized by a qualified AWA.INI system administrator modifying the file.

  • Page 56: Viewing Test Data

    Fig 45: Right pane of Main window features Data, Tests, and Trending tabs. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 57: Using The Data Tab

    Baker AWA-IV Software Overview Using the Data Tab The Data tab contains two sections, one above the other. The top section shows the date and time for the test result data, and whether the motor passed the specific test. By clicking on a date/time, you can view test result data for that specific date within the Application, Surge, PI, or Step/Ramp-Voltage tabs in the lower section.

  • Page 58: Motor Location Fields

    Motor ID Field The records stored by the Baker AWA-IV are hierarchically linked to each other. The Motor ID field serves as the primary key for linking associated records. The Motor ID is the primary means of locating and interacting with a motor’s data.

  • Page 59: Data Tab-Nameplate View

    Baker AWA-IV Software Overview Data Tab—Nameplate View The Nameplate view contains the nameplate data for each motor in the database. The software uses the first field, Motor ID, to uniquely identify the motor. Values must be entered in the Motor ID field and the two motor location fields.

  • Page 60: Adding A New Motor

    2. A dialog box appears to confirm that you want to delete the selected Motor ID, and all of its test results. If you are sure that you want to delete the Motor ID, click Yes. The motor and all of its test results will be deleted. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 61: Data Tab-Application View

    Baker AWA-IV Software Overview Data Tab—Application View The Application view provides a place to enter data about a particular test. Information such as who did the test, who the test was done for, which MCC the test was performed from, and a general memo can all be entered in their respective fields when the test is conducted or at a later date.

  • Page 62: Test Params Feature

    In many cases, it will simply reflect the parameters assigned to the Test ID; however, if an operator makes changes to the parameters for any reason before executing the tests, the actual parameters used will be reported in this window. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 63: Data Tab-Results Summary View

    Baker AWA-IV Software Overview Data Tab—Results Summary View The Results Summary view displays the test results summarized in a grid or spreadsheet form. Each column represents one test result. Fig 52: Data tab—Results Summary view example. The first two rows are used as the heading for each column, displaying the date and time the test was performed. If all tests that were performed passed, the background of the date/time cell will be green.

  • Page 64: Data Tab-Surge View

    You can also use your finger to draw the box around the area you want to zoom in on. In a nested view, waveforms for a single selected lead at the 1/3, 2/3, and full voltage are superimposed. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 65 Baker AWA-IV Software Overview Additionally, if the test failed, the previous to fail and the failed waveform will be displayed with the failed waveform being drawn in white. Fig 55: Enlarged Surge view—waveforms nested. The Surge view not only displays the surge waveforms for all leads, it also renders a view of the pulse-to-pulse (P-P) Error Area Ratio (EAR).

  • Page 66: Data Tab-Pi View

    In the small graphic display area, you can hold down the left mouse button and drag a box around an area of the screen to zoom in on the area. You can also use your finger to draw the box around the area you want to zoom in Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 67: Data Tab-Step/Ramp-Voltage View

    Baker AWA-IV Software Overview Data Tab—Step/Ramp-Voltage View Clicking on the Step/Ramp-Voltage tab displays the Step Voltage test data in both graphical and tabular form. The graph defaults to plotting current vs. voltage. The triangles indicate the current level at the end of each step.
  • Page 68 You can also use your finger to draw the box around the area you want to zoom in on. Press the space bar on the keyboard to zoom back out to full view. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 69: Using The Tests Tab

    Baker AWA-IV Software Overview Using the Tests Tab Clicking on the Tests tab changes the display area in the right side of the Main window as shown in the example below. This is the main testing window. Each test the analyzer performs is indicated by several columns of buttons that show the test status.

  • Page 70: Test Setup

    Temperature can be entered in degrees Celsius or Fahrenheit. The temperature acquired at test time is used during testing to adjust coil resistance values per IEEE 118 and insulation resistance values per IEEE 43/95. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 71 Baker AWA-IV Software Overview Resistance measurements can be influenced by humidity. To enable setting the relative humidity, check the Relative Humidity box then enter the humidity present. Click on Accept to commit the settings. The resistance test has several options. The test can be performed on a two-lead (single phase) device such as a single coil or a three-lead (three-phase) device such as a three-phase motor.
  • Page 72 1. Click the Test All Leads button. The analyzer then measures each lead’s resistance sequentially (semi-automatic testing). 2. Click one of the lead buttons on the Baker AWA-IV front panel. The analyzer then measures the resistance of the clicked lead only and displays the results (manual testing).

  • Page 73: Manually Entering Resistance Measurements

    Coil Resistances As discussed above, the resistance measurements made by the Baker AWA-IV are a user-configured series or a parallel combination of coils. At the end of a resistance test, the analyzer will calculate and display the coil resistances. If a temperature has been entered, it will report those values.

  • Page 74: Dc Tests Configuration Window

    The right side of the window displays the real-time voltage, current, and insulation resistance readings collected during the Megohm and HiPot tests. The voltage and current are displayed as slider bars. Below the slider bars are real-time voltage and current numerical outputs. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 75: Ramp Voltage Test

    Baker AWA-IV Software Overview Ramp Voltage Test The ramp voltage test is mostly used when testing generators. It gives information on the contamination level with the winding. The ramp voltage test is performed for a predetermined length of time at a specific voltage level. The voltage increases linearly on a specific time scale.

  • Page 76: Step Voltage Test

    After this test has been set up, it can be edited prior to running. Click on Config in the DC Tests setup window and the second step page appears. Fig 67: Step voltage Config Wizard—step 2. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 77: Surge Test Setup Window

    Baker AWA-IV Software Overview Surge Test Setup Window The Surge Test setup window, shown in the example below, appears when you click on the Surge test setup button, at the end of the Surge row in the Tests tab. Fig 68: Surge Test setup window.
  • Page 78 Clicking on the All Leads button starts a semi-automatic three-lead Surge test. A Surge test can also be started by clicking one of the test buttons on the front panel of the analyzer. Fig 70: Run surge buttons. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 79 ZS Override and apply the same voltage level to subsequent identical coils. Hi L—The Hi L (high impedance) feature extends the Baker AWA-IV 4 kV model’s base surge test circuitry range. „...

  • Page 80: E Bar Graph

    The voltage readout seen just above the waveform (shown as 2040 in this example) shows you the voltage level as you increase the voltage with the footswitch or Voltage Output Control knob. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 81: Creating A Surge Test Reference

    Baker AWA-IV Software Overview Creating a Surge Test Reference Creating a reference waveform involves determining and setting parameters collected from a known-good reference motor. 1. To acquire a reference waveform, check the Edit Test ID box in the Tests tab, and turn on the Surge test.

  • Page 82: Testing A Reference Motor

    6. Motors that use the Test ID associated with the reference motor’s Test ID will now have Test-Ref EAR% enabled in the Surge Test setup window. 7. When you have finished the process, click Save then uncheck the Edit Test ID box to turn off edit mode. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 83: Testing A Production Motor By Comparing With A Reference Motor

    Baker AWA-IV Software Overview NOTE: If the reference waveform is no longer needed or if has been created by accident, uncheck the Test-Ref EAR(%) and click the Done button, then update the Test ID and it will detach the reference waveform from the selected Test ID.

  • Page 84: Viewing Surge Test Results

    NOTE: If the reference waveform is very close to the selected motor’s waveform, it will hide the dashed waveform so only the solid lines are viewed. To see one lead at a time, check or uncheck the desired lead’s check box. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 85: Using The Trending Tab

    Baker AWA-IV Software Overview Using the Trending Tab Clicking on the Trending tab brings up a graph that charts acquired data. Trending information such as Max Delta R%, Balance Resistance, L-L Resistance, Coil Resistance, Megohm (correct or not corrected), PI, and HiPot leakage currents can be graphed over time so you can get an idea of the long-term status of a motor’s insulation.

  • Page 86: Max Delta R

    Hovering over a data point will show a date/time stamp and give the value of the test. This feature allows for easy identification of the test record for that point. Fig 81: Resistance trending graph. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 87: Insulation Resistance/Megohm

    Baker AWA-IV Software Overview Insulation Resistance/Megohm Megohm data is graphed by clicking on the Megohm Trend item in the drop-down list. Hovering over a data point shows a date/time stamp and gives the value of the test. Fig 82: Megohm trending graph.

  • Page 88: Hipot

    Clicking on HiPot in the drop-down box brings up a graph of the HiPot leakage current data. This has the same features as the Megohm trending graph. Fig 84: HiPot trending graph. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 89: Relative Humidity

    Baker AWA-IV Software Overview Relative Humidity Checking Relative Humidity (RH%) adds the RH percentage value entered at test time to the tool tips displayed when you hover over a data point. Default values displayed in the tool tips include the Time/Date stamp and measurement value of the point.
  • Page 90 3. The application will create a comma-delimited file. This dialog will also allow printing of all the data see in the list box. Click on Print List to print all selected data. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 91: Test Procedures

    3. HiPot, ramp voltage, step voltage 4. Surge NOTE: This chapter includes brief descriptions of each test type conducted with the Baker AWA-IV analyzer. For more details on the theory and application of each test, refer to the Motor Testing Theory Reference Manual.

  • Page 92: Megohm Test

    ƒ ƒ Poor cable insulation. The DA is essentially the same as PI, but shorter in duration (10 min vs 3 min). The first minute for both tests is the Megohm test. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 93: Hipot Test

    The final step will be at the standard test voltage and the final resistance calculation is recorded as the HiPot resistance result. The Step Voltage Test Setup Wizard can be used to customize the voltage, step times, and minimum resistance trip values. www.megger.com...
  • Page 94 16.8 - 12.8 = 4 6360 22.20 22.2 - 16.8 = 5.4 7350 27.20 27.2 - 22.2 = 5 8320 37.40 37.4 - 27.2 = 10.2 DOUBLED 9360 51.80 51.8 - 37.4 = 14.4 Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 95: Surge Test

    For example, for the 480-volt motor, the test voltage would be: 1960V * 1.2 = 2352V 1960 * 1.7 = 3332V For additional information on recommended test voltages, refer to “Appendix C—Recommended Test Voltages.” www.megger.com...

  • Page 96: Performing An Example Test

    If an existing Test ID will serve your needs, you can simply select it and assign it to your motor when creating the new Motor ID. Fig 88: Creating a Test ID. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 97 4. Click OK when the application accepts the password. The Update, Add, and Delete buttons will appear and the voltage class drop-down list will be enabled. 5. Click on the Add button. The Create New Test ID dialog box appears as shown below. www.megger.com...
  • Page 98 10. A dialog box will appear asking if this action is correct. If it is, click OK in the dialog box. 11. When you are satisfied with your selections, click OK to close the Create New Test ID dialog box. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 99 14. The new Test ID is created and ready for assignment to the new Motor ID, which you will create next. Fig 92: Tests tab view with new Test ID created and selected. All tests turned on. Item Description Test configuration buttons. Run tests buttons (semi-automatic testing). Test On/Off buttons. www.megger.com...

  • Page 100: Creating A Motor Id

    6. The Reset button restores the previous motor’s information to the form. 7. Ensure that the proper radio button is selected for Winding Config. This value will be used by the software during test setup. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 101 11. Assign a Test ID to the newly-created motor. In this example, we select the new Test ID we just created: 480 w/ rotor DA Step. 12. Click on the OK button. The new Motor ID is now added to the Motor Tree. www.megger.com...

  • Page 102: Setting Up Temperature And Resistance Test

    3. Click on the Manual Temperature Entry radio button. NOTE: The Baker AWA-IV will accept both ° C (Celsius) or ° F (Fahrenheit) temperatures and a temperature range of -32° C to 250° C. If you choose not to use Temperature entry, click on the radio button and it will be disabled (grayed out).

  • Page 103: Setting Up Dc Tests

    PI test in favor of the DA test at three minutes if the insulation resistance (IR) is greater than 5000 Megohms at the one-minute mark. Insulation resistance readings of 5000 Megohms or greater at one minute is the generally accepted criteria for aborting the PI test. www.megger.com...
  • Page 104 9. If you choose Thermoplastic or Thermosetting, the correction field will be enabled so you can set the value needed for temperature correction. 10. When you are satisfied that your DC Tests have been configured as needed, click the Close button to return to the main test window. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 105: Setting Up Surge Tests

    11. Other features in the Surge Test setup window apply to special cases that are documented elsewhere and are not used in this example. www.megger.com...
  • Page 106 Test ID assigned to it. 14. Uncheck the Edit Test ID box after you click Save to end the editing process. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 107: Running An Automatic Test

    Resistance—If the readings pass per the Test ID requirements, the Temperature/Resistance Test window will „ close. If low-voltage leads were used, a dialog box appears to instruct you to switch to the high-voltage leads. www.megger.com...
  • Page 108 Fig 102: Step -Voltage Test window—called automatically from DC Tests process. If no failures are found during this test, the analyzer will close the Step-Voltage Test and DC Tests windows, and continue to the Surge test. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 109 Fig 103: Surge Test window—appears when Surge test is executed. If no failures occur, the data from all tests will be saved to the database and the main test window will re-appear, showing the general results in the Tests tab. Fig 104: Main window—Tests tab—with passing test results. www.megger.com...

  • Page 110: Reviewing Test Results And Data

    Double click on a test date and time to move to a new record. You can also right click on a record to open a Delete dialog box if you choose to remove a specific test record. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 111 The Results Summary view presents the test data acquired in a spreadsheet style. The test date and time are shown across the top of the window with specific measurement results shown in each column. Fig 108: Test results spreadsheet; lower section. www.megger.com...
  • Page 112 Because this test was a DA, only the PI ratio has I=0 No PI indicating there is no PI value because the current was zero. Fig 109: Reviewing PI test data. Click on the Surge tab to view surge test data. Fig 110: Surge waveform view. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 113: Single-Phase Testing

    6. Set up parameters for DC and Surge tests as needed for the device using the respective setup windows. No specific parameter in either window will directly affect single-phase testing. The tests are set up and conducted the same as they would be for 3-phase testing, except that only leads 1 and 2 will be used. www.megger.com...

  • Page 114: Single-Coil Testing

    Single-coil Testing NOTE: The processes described in this section apply to testing coils with normal impedance. For testing low- impedance devices, refer to chapter 6, ”Using the Baker AT101 ZTX with Baker AWA-IV Analyzers” on page 119. Go/No Go Surge Testing This example describes a common application of conducting Go/No Go surge tests on a batch/lot of coils.
  • Page 115 Table 2: AWA-IV high-voltage test lead connections to device under test for single-coil Surge testing; first coil tested. Test Lead 1 Test Lead 2 Test Lead 3 Ground Lead Coil lead 1 Coil lead 2 Not Connected Not Connected www.megger.com...
  • Page 116 Table 3: AWA-IV high-voltage test lead connections to device under test for single-coil Surge testing; all subsequent coils being tested. Test Lead 1 Test Lead 2 Test Lead 3 Ground Lead Coil lead 2 Coil lead 1 Not Connected Not Connected Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 117 18. If the coil fails, mark the coil according to your organization’s testing process and record relevant information as needed. (This process is external to Baker AWA-IV recording of test results. Results are not saved to the AWA-IV when using this process.) 19.
  • Page 118 Additionally, when using this feature, do not move the Voltage Output Control knob. Changing the knob position will result in an improper test voltage level, which could damage the device under test. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 119: Single-Coil Testing Using A Test Reference

    (inactive at this time). 8. When the settings have been defined, click on Close. 9. In the Tests tab, click on Save then uncheck the Edit Test ID box to complete the initial Test ID setup. www.megger.com...
  • Page 120 15. The software will display the Safe to Turn On dialog box, instructing you to connect the high-voltage test leads then press the MΩ and L3 buttons on the front of the tester. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 121 EAR percentage is set to the value you need. An EAR of 3% is commonly used for coil comparison purposes. Fig 119: Ramping voltage to acquire Lead 1 22. After making final adjustments, click on Close. www.megger.com...
  • Page 122 30. Disconnect the coil from the tester. 31. If you need to test another coil, connect it to the tester as described above and repeat the process starting from step 27. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 123: Printing Reports

    Test Procedures Printing Reports The Baker AWA-IV’s software includes report generation features so you can provide test results to managers, customers, and repair personnel as required. Reports containing test data, nameplate data, application data, and more can be sent to a printer, or they can be printed to a Microsoft Word file or other file formats as needed or preferred.
  • Page 124 In other cases, you will want to print a more specific set of reports and/or data for a collection of motors tested. Just be sure to carefully consider what you need so you can generate the results required. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 125 Word document. This feature should also be used with discretion because printing reports to MS Word takes time; selecting a lot of records to print means the system would be tied up until all records can be transferred to the Word document. www.megger.com...
  • Page 126 The reports can be modified by adding text between the tables or the data tables can be cut and pasted into other documents. Fig 125: Example MS Word report with nameplate, summary, and surge graphic. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 127 In the following example, we see a report that includes the Results Summary and the Surge Summary. Fig 126: Example MS Word Report with nested surge results and graphics. Files can be saved in other formats including MHTML (MIME HMTL / web archive), a comma delimited text file, and Ref to Bar EAR CSV file. www.megger.com...

  • Page 128: Creating A New Motor Voltage Class

    7. Click on the Add Voltage Class button then click Yes in the confirmation dialog that appears next. The new motor voltage class will be added to the list for future use. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 129: Surge Testing Notes And Recommendations

    The will be realized when the energy bar on the right side of the Surge test window tops out and the surge voltage stop below the expected test voltage. If this occurs, a larger surge tester with more joules of energy should be used. www.megger.com...

  • Page 130: Surge Testing Through Capacitors

    Fig 128: Removing capacitors from motor circuit to prevent surge pulse absorption. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 131: Using The Baker At101 Ztx With Baker Awa-Iv Analyzers

    6 — Using the Baker AT101 ZTX with Baker AWA-IV Analyzers NOTE: This chapter describes how to combine the Baker AWA-IV analyzer with a Baker AT101 ZTX to test low- impedance devices. The Baker PPX 30A power pack includes Baker ZTX functionality, so it also can be used to this end.

  • Page 132: Connecting Baker Awa-Iv To The Baker Ztx Accessory

    Test cables connect to rear of ZTX (see image below). 2. Connect Baker AWA-IV test lead 1 to the TEST LEAD 1 receptacle located on the back of the Baker ZTX. 3. Connect Baker AWA-IV test lead 2 and 3, and the ground lead to the GND/L2/L3 LEADS receptacle on the back of the Baker ZTX.

  • Page 133: Armature Preparation

    Using the Baker AT101 ZTX with Baker AWA-IV Analyzers 4. Connect the ATF-5000 armature testing accessory to the FOOT SWITCH connector on the front panel of the Baker ZTX. 5. Connect the ATF-5000 surge and sense cables to the Baker ZTX surge and sense cables (round connectors).

  • Page 134: Setting Up A Surge Test For Armature Bar-To-Bar Testing

    Using the Baker AT101 ZTX with Baker AWA-IV Analyzers Setting Up a Surge Test for Armature Bar-to-bar Testing 1. First, you must create a Motor ID for the armature to be tested. You can easily do this by starting with the Motor ID for the armature’s motor, allowing you to re-use most of the nameplate information already entered.
  • Page 135 11. Immediately after you check the Arm box, the Surge Test setup window will change to the Surge Test Armature setup window as shown in the example below. NOTE: If the ARM check box is not visible, the Baker AWA-IV being used is not configured to work with a Baker ZTX. www.megger.com...
  • Page 136 Using the Baker AT101 ZTX with Baker AWA-IV Analyzers 12. Ensure that the Target Voltage is set as needed for your armature. 13. Set the Volts/Div value to Auto. The analyzer will auto-range for the reference wave. Fig 134: Surge Test window showing tester is Baker ZTX compatible.

  • Page 137: Running The Manual Armature Surge Test Using The Baker Ztx

    Using the Baker AT101 ZTX with Baker AWA-IV Analyzers Running the Manual Armature Surge Test Using the Baker ZTX NOTE: In most applications, you will need help from another person to complete at least the first part of this test process: obtaining the reference waveform.
  • Page 138 Using the Baker AT101 ZTX with Baker AWA-IV Analyzers 9. A dialog box will appear with a warning that the output voltage will automatically start at the target voltage level for all subsequent test, overriding the zero-volt interlock feature. Fig 136: Zero-start Override warning message.
  • Page 139 Using the Baker AT101 ZTX with Baker AWA-IV Analyzers 18. After all bars have been tested, click the Close button. The software will return you to the Main view Tests tab, which will look similar to the example below. 19. Because this is not an automatic test, you must click on the yellow Save Results button to save the test results to the database so it can be recalled for further viewing and to print reports.

  • Page 140: Reviewing Test Results And Data

    Using the Baker AT101 ZTX with Baker AWA-IV Analyzers Reviewing Test Results and Data 1. Click on the Data tab, Surge view (bottom tab) to review the test results. The graph will display the reference waveform in black and up to three saved waveforms in red, blue, and yellow.
  • Page 141 Using the Baker AT101 ZTX with Baker AWA-IV Analyzers Fig 139: Bar-to-Bar EAR graph. This graph has zoom capabilities that allow you to look more closely at a section of bars. 5. Hold the left mouse button down and drag the cursor to draw a box around the bars you want to enlarge.

  • Page 142: Printing Reports

    Using the Baker AT101 ZTX with Baker AWA-IV Analyzers Printing Reports To print reports for bar-to-bar surge data, click on the printer icon on the upper left of the Main window. The Report Generator window will appear. 1. Select the filter(s) you want to use.

  • Page 143: Generating Csv Files

    Using the Baker AT101 ZTX with Baker AWA-IV Analyzers Generating CSV Files The report generator provides you with the option to print the reference-to-bar EAR values to a comma separated values (CSV) file for easy import in to a spreadsheet application. To utilize this feature: 1.
  • Page 144 Using the Baker AT101 ZTX with Baker AWA-IV Analyzers Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 145: Appendix A - Baker Awa-Iv Troubleshooting

    NOTE: All information above except for software version number is located on the rear panel product label. Software version can be found by starting the software and clicking on the Help-About Baker AWA-IV… menu item. If the analyzer has special options installed, please note these. Any analyzer information derived is helpful! A great tool would be a printout or sketch of the waveforms displayed on the analyzer.

  • Page 146: Applications: What To Do First

    1.1. The test motor may be too large for the analyzer being used. The impedance of the windings may be too low. 1.2. The Baker AWA-IV may be at fault in this case. Do not continue testing until you contact the Megger Baker Instruments product service department.

  • Page 147: Precautions For Proper Operation

    1.1. The item being tested is in fact faulty and has either low insulation resistance or open connections. 1.2. The Baker AWA-IV has an internal problem. 1.3. The analyzer has a test lead problem as shown above for an open condition.

  • Page 148: Hipot Overcurrent Trip Check

    NOTE: It is not necessary to run the output control at a high level to determine if the Baker AWA-IV is working properly. If the display still shows no voltage bar, call the service department. Use a meter to confirm the insulation resistance of the device being tested.

  • Page 149: Checking Test Leads For Broken Sections

    6. If the analyzer is operating correctly, reconnect to the possible bad motor and retest. If it is not operating correctly, contact the Megger Baker Instruments service department for assistance. Third-party Software Warning NOTICE: Do not install spyware or spam blockers, screen savers, virus detectors, or wireless internet software to the analyzer.

  • Page 150: Warranty Return

    The warranty-return form below must be filled out and returned with the analyzer to obtain warranty service. This form will help to ensure that Megger Baker Instruments service personnel can identify the problem, and quickly repair your unit and return it to you.

  • Page 151: Appendix B - Technical Specifications And Applicable Standards

    New Baker AWA testers are calibrated at the manufacturing facility before shipping. Calibration is recommended annually to ensure continued optimum performance. For more information, please contact Megger Baker Instruments support for current calibration information. You may also contact the Service department at (970) 282-1200 or (800) 752-8272.
  • Page 152 1 μA/Div 9μA +/–5% from +/– 5% .9μA–9μA .1 μA/Div .9μA +/– .045μA +/–5% from +/– 10% .1μA–.9μA Table 11: Voltage measurement accuracy—Surge test. Range Resolution 500V/Div +/–12% 1000V/Div +/–12% 2000V/Div +/–12% Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 153: Baker Awa-Iv 6 Kv, 12 Kv, And 12 Kvho Tester Specifications

    Baker AWA-IV 6 kV, 12 kV, and 12 kVHO Tester Specifications Table 12: Surge test specifications. Parameter Baker AWA-IV 6 kV Baker AWA-IV 12 kV Baker AWA-IV 12 HO Output voltage 0–6000 Volts 0–12000 Volts 0–12000 Volts Max output current...

  • Page 154: Environmental Specifications

    Pollution degree II This unit is intended for Installation Category II in a Pollution Degree II environment. (From IEC 61010-1 3.6.6.2) Only non-conductive pollution occurs. However, temporary conductivity caused by condensation is expected. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 155: Applicable Standards

    Electrotechnical Manufacturers Association 1331 Baur Boulevard 445 Hoes Lane Commission (IEC) (NEMA) St. Louis, MO 63132 P.O. Box Piscataway, NJ www.IEC.ch Global Engineering 08855-1331 Phone: 314-993-2220 Documents Phone: 1-800-678-IEEE FAX: 314-993-1269 Phone: 1-800-854-7179 Fax: 908-981-9667 International: 303-379- www.ieee.org 2740 www.megger.com...
  • Page 156 Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 157: Appendix C - Recommended Test Voltages

    Recommended DC HiPot and Surge Test Voltages Megger Baker Instruments has a recommended standard (see table) for test voltages for DC tests and Surge tests conducted on a motor, generator, or transformer. That standard is twice the AC line voltage plus 1,000 volts.
  • Page 158 In Service, 2E + 1,000 (E = nominal line voltage) 1,960 2,150 2,200 2,300 1,878 5,600 4,160 3,397 9,320 6,900 5,634 14,800 13,800 11,268 28,600 NOTE: Use the “Peak Voltage” value shown on the screen to obtain the proper test voltages. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 159: Appendix D - Details Of Customizable Motor Identifiers

    Here is an example of the entries in the AWA.INI file [Options] section to illustrate how they work. The “AllowDupMotorIDs” option is a default parameter in this section—it has nothing to do with the new feature. [Options] AllowDupMotorIDs=0 MotorDisplaySpecs=3 MotorDisplaySpecs.AllowedContexts=RouteList MotorDisplaySpec.1.Field=tree_level_2 MotorDisplaySpec.1.ExclusionsRegex=^(.*\bDefault.*|_TEMPLATE(_BACKUP)?)$ MotorDisplaySpec.1.Format=%s | MotorDisplaySpec.1.AppliesTo=RouteList MotorDisplaySpec.2.Field=tree_level_1 MotorDisplaySpec.2.Exclusions=_TEMPLATE,_TEMPLATE_BACKUP MotorDisplaySpec.2.Format=| %s : MotorDisplaySpec.3.Field=motorid MotorDisplaySpec.3.Field=motorid MotorDisplaySpec.3.Exclusions=_TEMPLATE,_TEMPLATE_BACKUP MotorDisplaySpec.3.Format=: (%s) www.megger.com...
  • Page 160 ExclusionsRegex (optional)—Provides a valid ECMAScript-style regular expression, against which the entire field value is matched. A successful full-value match excludes the identified motor from being displayed where the custom identifiers are used. This does not affect the motor tree in the Explore tab. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 161 Here is an example that displays tree_level_2, tree_level_1, and motorid in the motor lists of the Route tab and Route Editor dialog, while displaying motorid and tree_level_2 in the Motor ID tab: MotorDisplaySpecs=4 MotorDisplaySpecs.AllowedContexts=All MotorDisplaySpec.1.Field=tree_level_2 MotorDisplaySpec.1.BAK.ExclusionsRegex=^(.*\bDefault.*|_TEMPLATE(_BACKUP)?)$ MotorDisplaySpec.1.Format=%s | MotorDisplaySpec.2.Field=tree_level_1 MotorDisplaySpec.2.Exclusions=_TEMPLATE,_TEMPLATE_BACKUP MotorDisplaySpec.2.Format=| %s : MotorDisplaySpec.3.Field=motorid MotorDisplaySpec.3.Exclusions=_TEMPLATE,_TEMPLATE_BACKUP MotorDisplaySpec.3.ExclusionsRegex=.*\b[Cc]opy\b.* MotorDisplaySpec.3.Format=%s MotorDisplaySpec.3.AppliesTo=All MotorDisplaySpec.4.Field=tree_level_2 MotorDisplaySpec.4.Exclusions=_TEMPLATE,_TEMPLATE_BACKUP MotorDisplaySpec.4.Format=: %s MotorDisplaySpec.4.AppliesTo=MotorIdList www.megger.com...
  • Page 162 Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 163: Appendix E - Database Definition

    Appendix E — Database Definition Version 4.0 Database Definition The Baker AWA-IV database is an Access 97 database (.mdb). It can also be converted to an Access 2000 database and be used by the analyzer. The Access database is divided into several tables.

  • Page 164: Nameplate Table-(Motorid)

    Text (16) Defines the length of time during which the motor can carry its nameplate rating safely. user_defined_description Text (64) User defined motor description field. winding_config Text (8) Wye or delta winding configuration. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 165: Test Results Table-(Testresults)

    Text (25) Enter the person who is performing the test on the motor. baker_sn Long integer Serial number on the Baker AWA-IV being used for the test. baker_tester_type Text (25) Type of Baker AWA-IV being used for the test. (AWA, D12R, and so on).
  • Page 166 Reason why motor failed (if it failed). Meg-Ohm_voltage Long integer Voltage used in Meg-Ohm calculations. Meg-Ohm_current Double Current used in Meg-Ohm calculations. Meg-Ohm_Meg-Ohm Long integer Meg-Ohm value = voltage/current. Meg-Ohm_IR_at_40C Long integer Meg-Ohms (insulation resistance) at 40 °C. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 167: Memo Table-(Memo)

    This table contains the memo if any that a user can fill out per test result. Table 34: Memo table field descriptions. Field name Type Description Test_resultno Long integer Foreign key used to link test result records. motor_key Long integer Motor key Identification key. memo Memo Memo field type containing the user entered text. www.megger.com...

  • Page 168: Polarization Index Test Results Table-(Testresultspi)

    Resistance in Meg-Ohms @ 600 seconds. pi_current_1sec Memo Comma delimited field containing the current for each second 180 data , if it is a DA only, or 600 if a full PI was run. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 169: Step Voltage Test Results Table-(Testresultsprghipot)

    Comma delimited field containing the current for each second of the interval, including current during ramping of voltage. time_1sec Memo Comma delimited field containing the times progression for each second of the interval, including time during ramping of voltage. www.megger.com...

  • Page 170: Surge Test Results Table-(Surgewaveform)

    Full waveform for lead 3. wave3Mid Middle waveform for lead 3. wave3Min Minimum waveform for lead 3. wave3PrevFail Wave form before the failed waveform for lead 3. wave3ppEAR Pulse-to-Pulse EAR for lead 3. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 171: Test Results Parameters Table-(Testresultsparameters)

    Defines the value that the temperature will be corrected to. resist_temp_correct_factor Double Default 234.5 for copper. resist_target_coilRes_ Yes/No 1=Coil resistance checking enabled;0=not enabled. enabled resist_target_coilRes Double Coil resistance to compare tested value with. resist_target_coilRes_ Long integer Tolerance set for target coil resistance. tolerance www.megger.com...
  • Page 172 Length of test. HiPot_ramp_rate Short integer Ramp rate. HiPot_trip_level Short integer HiPot trip value. HiPot_discharge_multiplier Short integer Number of minutes to discharge. HiPot_PowerPack_enabled Yes/No 1=PP enabled; 0=No PP. StepHiPot_PowerPack_ Yes/No Not used. enabled Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 173 Table 44: Test results parameters table; additional fields descriptions. Field name Type Description surge_AT101_enabled Yes/No 1=AT101 enabled; 0=Not enabled motor_voltage_class Long integer Voltage class of the Test ID used temp_RH_enabled Yes/No 1=Relative Humidity enabled; 0= Not enabled HiPot_rampVTest_enabled Yes/No 1=Ramped Voltage Test enabled; 0= Not enabled www.megger.com...

  • Page 174: Test Id Table-(Testid)

    Default 234.5 for copper. resist_target_coilRes_ Yes/No 1=Coil resistance checking enabled; 0=not enabled. enabled resist_target_coilRes Double Coil resistance to compare tested value with. resist_target_coilRes_ Long integer Tolerance set for target coil resistance. tolerance Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 175 Target voltage of test. HiPot_min_Meg-Ohm Short integer Minimum Meg-Ohm value. HiPot_test_time Short integer Length of test. HiPot_ramp_rate Short integer Ramp rate. HiPot_trip_level Short integer HiPot trip value. HiPot_discharge_multiplier Short integer Number of minutes to discharge. HiPot_PowerPack_enabled Yes/No 1=PP enabled; 0=No PP. www.megger.com...
  • Page 176 Yes/No 1=AT101 enabled; 0=Not enabled motor_voltage_class Long integer Voltage class of the Test ID used temp_RH_enabled Yes/No 1=Relative Humidity enabled; 0= Not enabled HiPot_rampVTest_enabled Yes/No 1=Ramped Voltage Test enabled; 0= Not enabled Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 177: Step Voltage Test Id Table-(Testidprghipot)

    Short integer Peak voltage reached for lead 2. peak_volts3 Short integer Peak voltage reached for lead 3. wave1Full Full wave form for lead 1. wave2Full Full wave form for lead 2. wave3Full Full wave form for lead 3. www.megger.com...

  • Page 178: Database Information Table-(Databaseinfo)

    Motor Voltage Class Table—(MotorVoltageClasses) Table 57: Motor voltage class table fields descriptions. Field name Type Description motor_voltage_class Long integer Voltage class (480, 4160, and so on). class_description Text (64) Voltage class description. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 179: Appendix F - Baker Awa-Iv Specific Winding Faults

    Appendix F — Baker AWA-IV Specific Winding Faults Table 58: Software fault messages Status Failure type Failure message PASS No failure was detected according to the Test Model given. FAIL USER ABORT A user abort has been detected. FAIL EMERGENCY...
  • Page 180 Surge Test Result: Fail – L-L EAR Lead- to-Lead EAR % is out of tolerance. CAUTION Unequal zero Test results: Caution – UNEQUAL ZERO CROSSINGS Waveforms crossings do not have the same number of zero crossings. Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...
  • Page 181 Surge test Erratic wave Indicates weakness in copper-to-copper insulation. Most likely turn-to-turn insulation. Indicates insulation’s end of useful life. Surge test Wave imbalance Indicates winding imbalances caused by asymmetries from the winding process or an insulation failure. www.megger.com...
  • Page 182 Baker AWA-IV 71-015 EN V16 User Guide www.megger.com...

  • Page 183: Index

    AWA-IV troubleshooting 133, 147, 151 Baker AWA-IV 2 kV and 4 kV tester specifications 139 Baker AWA-IV 6 kV, 12 kV, and 12 kVHO tester specifications 141 Baker AWA-IV 6 kV/12 kV model front panel 7, 9 Baker AWA-IV 6 kV model distinctions 9...
  • Page 184 Service: What to do first 135 Setting up a new motor voltage class 86 Limited output surge waveform 136 Setting up the Baker AWA-IV tester 9, 11, 12 Low-impedance Armature or Coil Testing 119 single phase testing 59 Single-phase Testing 101...
  • Page 185 (single phase) 59 Updating an existing motor’s nameplate information 48 Using multiple databases 15 Using the Baker AT101 ZTX with Baker AWA-IV Analyzers 119 Using the Baker ZTX with Baker AWA-IV analyzers 119 Using the footswitch 12 Using the Tests tab 57...
  • Page 186 Local Sales office Megger USA - Fort Collins 4812 McMurry Ave., Suite 100 Fort Collins Colorado, 80525 1-970-282-1200 or 1-800-752-8272 1-282-1010 baker.sales@megger.com Manufacturing sites Megger Limited Megger GmbH Megger USA - Valley Forge Archcliffe Road Obere Zeil 2 61440 Valley Forge Corporate Center...

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