Megger TTR320 Series Скачать руководство пользователя страница 54 | Manualshive

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AVTMTTR300 Rev A Oct 2008

46

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Содержание TTR320 Series

Страница 1: ...ase TTR Transformer Turn Ratio Test Set TTR320 series Catalog Numbers TTR320 TTR320 47 HIGH VOLTAGE EQUIPMENT Read this entire manual before operating M Valley Forge Corporate Center 2621 Van Buren Av...

Страница 2: ......

Страница 3: ...Three Phase TTR Transformer Turn Ratio Test Set TTR320 series...

Страница 4: ...pairing at our option defective equipment Equipment returned to the factory for repair must be shipped prepaid and insured Contact your MEGGER representative for instructions and a return authorizatio...

Страница 5: ...ansformers 14 Three Phase Three Winding Transformers 15 Current Transformers CTs 16 BCTs Mounted on Three Phase Transformers 19 T Type Transformers 22 5 Operation 23 Power up 23 Navigating the screen...

Страница 6: ...nsformer 17 Figure 4 6 Setup for Testing Taps on Multiple Tap CT 18 Figure 4 7 Setup for Testing BCT Mounted on Single Phase Two Winding Transformer 19 Figure 4 8 Setup for Testing BCT Mounted on Delt...

Страница 7: ...t Prior to operation check for loosened hardware or damage incurred during transit If these conditions are found a safety hazard is likely DO NOT attempt to operate equipment Please contact Megger as...

Страница 8: ...AVTMTTR320 EN Rev A Oct 2008 iv M...

Страница 9: ...he transformer to be tested The TTR lead selection circuitry permits automatic measurement of all phases without changing connections This feature eliminates the need to refer to hook up charts when t...

Страница 10: ...rt Quick test mode provides the fastest testing of a transformer Three excitation test voltages 80 V 40 V and 8 V Testing to ANSI IEC and Australian standards Leads marked to ANSI IEC and Australian s...

Страница 11: ...n the direction indicated by the arrows 3 Voltage ON light Red indicator lamp indicates when lit that test voltage is being supplied to the Unit Under Test UUT 4 Remote Trigger receptacle Plug recepta...

Страница 12: ...ser to select Active area of the screen Keypad Key board for entering notes and data Power Suspend Prepares the Instrument for Shutdown A message will indicate when Input Power can be safely removed n...

Страница 13: ...tions ports HOME Action Icons Select to create NEW test Select to define Transformer Tap Structure Select to RECALL test Select to SAVE Test Print Icon Prints the Selected Test data Printer driver is...

Страница 14: ...eport Printer must be standard USB supporting HP PCL protocol USB Out Icon Select to Transfer Files or Reports from external USB Memory Stick to the TTR USB In Icon Select to Transfer Files or Reports...

Страница 15: ...s of instantaneously lethal levels of electrical energy Observe the following safety precautions Observe all safety warnings on the equipment They identify areas of immediate hazard that could result...

Страница 16: ...t be inserted only into a mating receptacle with a ground contact Do not bypass the grounding connection Any interruption of the grounding connection can create an electric shock hazard Determine that...

Страница 17: ...nections should be made in the order as listed below 1 Ground Use the Megger supplied Safety Ground Cable 15 ft 4 6 m to connect the TTR320 Wing Nut Ground Terminal directly to Local Station Earth gro...

Страница 18: ...distance then connect the LTC cable at this time 6 Connect the H and X leads to the TTR320 end only at this time With the clamps disconnected from the UUT connect the Bayonet Plug on the Cable labeled...

Страница 19: ...described in Sections 2 and 3 herein F WARNING Ensure that the transformer to be tested is completely de energized Check every winding Ensure that all terminals of the transformer are disconnected fr...

Страница 20: ...avy duty clamps marked X1 and X2 of the test lead to the corresponding low voltage winding terminals of the transformer under test Figures 4 1 and 4 2 show test setups for single phase transformers Fi...

Страница 21: ...C and Australian standards are as shown in Table 4 1 Table 4 1 Test Lead Markings for Single Phase Transformers Test Lead Marking Transformer Heavy Duty Clamp Test Lead ANSI CEI IEC Australian Termina...

Страница 22: ...sing clockwise rotation to the receptacles 3 Connect the heavy duty clamps marked H0 H1 H2 and H3 of the test lead to the corresponding high voltage winding terminals of the transformer under test Ref...

Страница 23: ...al suffix of 4 See Table A 3 Three Phase Three Winding Transformers This type of transformers has primary secondary and tertiary windings Primary and secondary windings are tested as a regular three p...

Страница 24: ...arity F WARNING Failure to observe proper connections will result in a safety hazard and may result in damage to the test set or CT Failure to observe voltage rating of low current X winding may resul...

Страница 25: ...ared to the Single and Three phase Transformer testing described in the previous sections 4 As shown in Figure 4 5 connect the heavy duty clamps marked X1 and X2 of the test lead to the respective H1...

Страница 26: ...rcuit connections as described in Section 3 2 2 Connect the H and X test cables to the respective H and X receptacles of the TTR320 Make sure that the connectors are securely fastened using clockwise...

Страница 27: ...onnections when the BCTs are mounted on a typical delta winding and Figure 4 9 shows how when mounted on a typical wye winding 1 With the ON OFF Switch in the OFF position make the circuit connections...

Страница 28: ...tion polarities are correct Make connections as shown in figure 4 8 for delta winding configurations and figure 4 9 for wye winding configurations Figure 4 8 Setup for Testing BCT Mounted on Delta Win...

Страница 29: ...Connecting to the Transformer AVTMTTR320 EN Rev A Oct 2008 21 Figure 4 9 Setup for Testing BCT Mounted on Wye Winding of a Three Phase Transformer...

Страница 30: ...should be compared to the calculated turn ratio indicated in Table 4 3 Table 4 3 T type Transformer Winding Phase Relationship Winding Connection Winding Tested IEC Vector Group High Voltage Winding H...

Страница 31: ...urn the ON OFF switch to the ON position and operate the test instrument as described herein F EMERGENCY SHUTDOWN For Emergency shutdown Push red EMERGENCY OFF button or toggle On OFF switch to OFF On...

Страница 32: ...M AVTMTTR320 EN Rev A Oct 2008 24 Action Icons Select NEW TEST to clear Test screen Figure 5 1 Cleared Test screen...

Страница 33: ...0 EN Rev A Oct 2008 25 Select Recall to open test from memory either internal or USB memory Figure 5 2 File Manager Recall Test Select SAVE to save test to memory Use Zone Key to move cursor to variou...

Страница 34: ...M AVTMTTR320 EN Rev A Oct 2008 26 Figure 5 3 File Manager SAVE Test screen Select to define Tap Structure Figure 5 4 Tap Structure Define...

Страница 35: ...will begin with this prefix Error Limit User set error limit Ratio Test voltage Default test signal voltage level Units Units of Measure setting Type Transformer type convention Show Diagram Number A...

Страница 36: ...test result screen indicating an abnormal operating condition verify the condition by taking a repeat measurement before attempting to take any corrective action Open connections wrong connections op...

Страница 37: ...connected or the test transformer connections or markings do not comply with the requirements of ANSI IEC or the Australian standard Upon completion of TEST Powering down 1 Upon completion of testing...

Страница 38: ...M AVTMTTR320 EN Rev A Oct 2008 30 M...

Страница 39: ...the cables and mating panel receptacles with isopropyl or denatured alcohol applied with a clean cloth Fuse Replacement The TTR320 is protected by two mains fuses Fuse replacement is indicated if the...

Страница 40: ...ally for the transformer turns ratio testers a customer performed this test by connecting H1 X1 and H2 X2 test leads The 1 1 turns ratio was expected to be measured Additionally the displayed test res...

Страница 41: ...ete and a QUICK TEST 5 Enter transformer type DIAG 07 YNyn0 F WARNING Do not continue functional test if the diagram type DIAG 07 YNyn0 transformer type is not listed Keep the leads which are energize...

Страница 42: ...tolerance condition s in measurement circuit Red TEST VOLTAGE ON lamp does not light on start of testing Defective lamp EMERGENCY TEST OFF switch is not released Problem in measuring circuit One of t...

Страница 43: ...vice and recommends that its customers take advantage of this service for routine maintenance or in the event of any equipment malfunction In the event Service is required contact your Megger represen...

Страница 44: ...M AVTMTTR320 EN Rev A Oct 2008 36 M...

Страница 45: ...60 2 Hz 100 VA 230 V ac 10 single phase 50 2 Hz or 60 2 Hz 100 VA TTR320 TTR320 47 Included Accessories Canvas carrying bag for test leads 30915 211 Power supply cord 8 ft 2 5 m 17032 4 Ground lead 15...

Страница 46: ...15 m 1 shielded test lead set X and H winding 30 ft 9 1 m 3 lead set adapter to allow use of Megger TTR C N 550503 lead set 30915 xxx Software PowerDB software 1st machine license soft key PowerDB 1st...

Страница 47: ...installation category II Protective Devices Fuses 2 Cat No TTR320 Type T 250 V 3 5A IEC 127 designation Cat No TTR320 47 Type T 250 V 1 5 A IEC 127 designation High voltage and low voltage measurement...

Страница 48: ...mA 3 digit resolution Phase Angle Deviation 90 degrees 1 decimal point for the minutes display 2 decimal point for the degree display 2 decimal points for the centiradian display Accuracy Turn ratio 8...

Страница 49: ...GA color display Memory Storage Internal and USB memory device Over 1000 test results depending on size Interface Ethernet PC USB flash drive Serial port optional printer Environmental Conditions Oper...

Страница 50: ...M AVTMTTR320 EN Rev A Oct 2008 42 M...

Страница 51: ...at are appropriate for specific Megger instruments PowerDB Lite detects the instrument and enables the appropriate form s Data can be entered on screen or captured directly while using the test instru...

Страница 52: ...Test Forms Use or Modify One of Our 200 Built in Test Forms One Step Procedure To Generate Test Reports With Table of Contents and Deficiency Summaries Allows All Of Your Field Test Data To Be Integr...

Страница 53: ...v A Oct 2008 45 Software Installation To install PowerDB Lite load the PowerDB Lite CD into your CD ROM drive and follow the on screen instructions 1 Accept the terms of the License agreement 2 Choose...

Страница 54: ...M AVTMTTR300 Rev A Oct 2008 46 3 Select Default Settings 4 InstallShield Wizard will complete the installation of PowerDB Lite Click Finish to close the installation program...

Страница 55: ...nicate so never check Use Ethernet if you are using a TTR 300 or TTR 310 Select the appropriate communication settings on the Serial Device Configuration screen Use the Refresh button to find any port...

Страница 56: ...layed on the instrument s Preferences screen e Then Click OK on the Instrument Setup Screen to finish 2 Open a New Form a Select the File New menu item or type CTRL N or press the New toolbar button b...

Страница 57: ...8 49 3 Enter Test Data a Header and nameplate information can be manually typed into a form b Click the Initialize Instrument button to initialize the test set c Form fields with automation will now b...

Страница 58: ...he diagram can then be changed by entering a number in this field 2 Standard This enables you to choose between the ANSI Australian or IEC Standard 3 Test Voltage This enables you to choose the test v...

Страница 59: ...reports repeat the notations and lists the page number where reported This allows the user to scroll to a particular page to view a reported anomaly For more information on features of PowerDB visit u...

Страница 60: ...the file you would like to open c Press the Open dialog button d If the file contains multiple test dates select the date that you would like to open for editing or select New to append a new set of...

Страница 61: ...c To change the left logo press the button by the left logo path d The Open screen allows you to browse to a file location select a JPG or BMP file and press the Open button e Repeat steps c and d for...

Страница 62: ...Languages a Select the Tools Options menu item b Select the appropriate language in the dropdown menu 11 How to change units of measurement a Select the Tools Options menu item b Select the units in...

Страница 63: ...found in the Help PowerDB Lite Help menu item Frequently Asked Questions FAQ s 1 Can I change the forms No You must have the full version of PowerDB to change forms 2 Can I synchronize forms to a dat...

Страница 64: ...ht arrow keys to select the low side winding configuration e Press the Enter or Tab key f Select the test voltage from the dropdown menu then press Enter or Tab g Type in the high side tap number and...

Страница 65: ...ary or tertiary tap tested with the primary nominal tap 2 Test for each primary tap with the nominal secondary or tertiary tap If you do not wish to test all of the secondary or tertiary taps you can...

Страница 66: ...M AVTMTTR300 Rev A Oct 2008 58...

Страница 67: ...TTR320 EN Rev A Oct 2008 59 Operating Instructions for the 3PH TTR with TAP Changer Form The procedure for this form is the same as the Simple TTR form The only difference is that it allows the user t...

Страница 68: ...M AVTMTTR300 Rev A Oct 2008 60 M...

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