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TRM-203/403 User`s Manual - Vanguard Instruments Company, Inc.

1. 66 317 Working with T SE RK CON AS tie tant yo t sofa 68 3171 kn la a is 68 3 17 2 Printing the Contents of the Working Memory 1 2 70 3 17 3 Printing a Test Record 71 3174 Restornne a Test RECO A kise ia t ep ti fy kk samc eee E cee 74 3 17 5 Copying Test Records to a USB Flash 78 3 17 6 Erasing Test ROC Ol OS 81 3 18 Converting Resistance 5 86 TRM 203 AND TRM 403 USER S MANUAL REV 1 LIST OF FIGURES Figure 1 TRM 203 403 Controls and Indicators 5 Figure 2 Typical Connections a Load Tap Changer 7 17 Figure 3 Typical TRM Connections Diagram c ccsccccsssecccsececesececeescecceeseceeeeceseecessencesseeeeeees 17 Figure 4 Typical Dynamic Resistance Test 18 Figure 5 Typical Three Phase Delta Transformer Resistance Test Results Printout 33 Figure 6 Typical Three Phase Wye Transformer with Neutral Resistance Test Results Printout di ke 34 Figure 7 Typical Single Phase Resistance Test
2. TEST SET TO 3 LOWER START TO RUM TEST TU ABORT TRM 203 AND TRM 403 USER S MANUAL REV 1 Set the LTC or Voltage Regulator tap position to the position indicated on the screen To change tap positions press and hold the RAISE or LOWER LTC control button on the front panel Release the button when the tap position has been set to the position indicated on the screen Press the START key The following screen will be displayed momentarily CALIBEATING PLEASE WAIT After the TRM finishes its internal calibration the following screen will be displayed CHART Mio Hes 1 PLEASE HAIT AMPS EHERDIZED p TRM determines when the resistance reading is stable and displays the resistance values on the LCD screen as shown below TEST ESS TI T 29 91 AMPS 1 491 ACCEPT EMERG ZED Press the ENTER key to accept save the readings for this tap q The following screen will be displayed momentarily CHART Mio 39 91 AMPS 1 491 mQ TEST SAYET a EHERDGIZED I REV1 TRM 203 AND TRM 403 USER S MANUAL Once the reading has been saved the following screen will be displayed TO LOWER START TO CONTINUE FMR ENERGIZED Set the LTC or Voltage Regulator tap position to the position in
3. This warning is a reminder that the next sequence of test steps will run current through the test load Press any key to continue The following screen will be displayed DELTA 18 AMP TEST START TO RUM TEST TO ABORT Press the START key to run the test k The following screen will be displayed momentarily enn CALIBEATIHG PLEASE WAIT After the TRM finishes its internal calibration the following screen will be displayed CHARGING HAKI HAKZ FLEASE WAIT FMR ENERGIZED This is an informational screen to remind the operator that a test is in progress and shows which phase the test is being performed on The display duration of this message depends on the size of the winding s inductance REV1 TRM 203 AND TRM 403 USER S MANUAL The TRM will then ramp up the current and the screen will be updated accordingly aAFHE CHARI IHi Hese HAns PLEASE WAIT 108 935 AMPS FMR ENERGIZED The determines when the resistance reading is stable and displays the resistance value on the LCD screen as shown below TEST 14 11 27 AMPS 1 945 Q TO ACCEPT PHS The TRM will continue the test and update the resistance values on the LCD screen Press the ENTER key to save the readings for the current phase The following screen will be displayed TEST PRUGRESS 12 1l z2f AMPS
4. The following screen will be displayed a Press any key to return to the START UP menu You can print the test results using the steps in section 3 17 2 A sample test results printout for a Delta type transformer is shown in Figure 5 A sample test results printout for a Wye with neutral type transformer is shown in Figure 6 REV 1 TRM 203 AND TRM 403 USER S MANUAL TEST RESULTS DATE 05 11 12 TIME 09 44 24 EQUIVALENT RESISTANCE DATA MEAS TEMP Tm 23 0C 7 REF TEMP Ta 75 0C 167 ALUMINUM WINDINGS Tk 225 0C Phase A RmA meas x Cila TKi Tm TK 32 All temps for eqn are in deg C beaoe tbaba bessa 4t Phase A measured resistance Calculated phase A resistance at reference temp Calculated phase A winding resistance Calculated phase A winding resistance at reference temperature Sample test results showing individual winding resistance values for a Delta transformer The TRM 203 403 can also calculate the phase resistance and individual winding resistance values at a given reference temperature Rs and Rws respectively Figure 5 Typical Three Phase Delta Transformer Resistance Test Results Printout TRM 203 AND TRM 403 USER S MANUAL REV 1 TEST RESULTS DATE 05711712 TIME 69 27 56 X2 COMPANY COMPANY 2 STATION Phase B RmB Phase C RmC RwB EQUIVALENT RESISTANCE DATA MEAS TEMP T
5. SETTING CORE ENERGIZED DEGAUSSIHG XFMR H xi Hzx SETTING CORE CHARGING REVERSE EHERDIZED TEGAUSSING XFMR H xi Hzx SETTING CORE CHARGING REVERSE gt RESETTING CORE EHERDIZED DEGAUSSIHG XFMR H xi Hzx SETTING CORE CHARGING REVERSE RESETTING CORE gt PHASE COMPLETE XFMR ENERGIZED The above process will be repeated for the remaining two phases When the process is complete you will be returned to the START UP menu 000000 000 TRM 203 AND TRM 403 USER S MANUAL REV 1 3 17 Working with Test Records 3 17 1 Saving Test Records After performing a test the user is presented the option to save the test results to the unit s Flash EEPROM or to a connected USB Flash Drive If the test results are not saved immediately after performing a test they will still remain in the working memory and can be saved later as long as a new test has not been performed and the unit has not been turned off Follow the steps below to save the test results from the working memory to a test record the following procedure can also be used to re save a restored test record to a new memory location or to a USB Flash Drive a Start from the START UP menu Press the 2 key SETUP b The following screen will be displayed Press the 3 key SAVE RESTORE RECORD c The following screen will be dis
6. TRM 203 AND TRM 403 USER S MANUAL k The following screen will be displayed ese TEST UL Lees 46 TEST START TO RUM TEST TO ABORT Press the START key to run the test The following screen will be displayed momentarily CALIBEATING PLEASE WAIT After the TRM finishes its internal calibration the following screen will be displayed CHAR IHE FLEASE WAIT 1 81 AMPS EMERG ZED E This is only an informational screen to remind the operator that a test is in progress The display duration of this message depends on the size of the winding s inductance The TRM will ramp up the current and then display the following screen PRESS TENTER 13 TO START LOGGIMG 35 92 EHERDIZED Press the ENTER key REV1 TRM 203 AND TRM 403 USER S MANUAL m The following screen will be displayed temporarily MEASURTHG RES The TRM determines when the resistance reading is stable and shows the resistance value on the LCD screen as shown below the first line shows the remaining test time REMATHIMG TIME ml 1 431 FMR ENERGIZED TEST RESULTS 29 91 AMPS 1 4921 mQ FMR ENERGIZED Press any key to continue n The following screen will be displayed SAVE THIS RECORD 1 YES 2 HU 1 YES Press the 1 key YES to save the test record
7. b The following screen will be displayed 1 RECORD II 2 RECORD 5 SAVE RESTORE RECORD 4 SET TIME LANGUAGE Press the 4 key SET TIME c The following screen will be displayed DATE 1 00 7 Type the current date using the keypad The following screen will be displayed TIME HH Hh zz Enter the time using the keypad When the time has been entered you will be immediately returned to the START UP menu DI 000 TRM 203 AND TRM 403 USER S MANUAL REV 1 3 9 Setting the Interface Language Follow the steps below to set the interface language English Soanish or Turkish a Start from the START UP menu _ BUM TES e 1 Ell TEST B9 A6 21 2 SETUP 22E TAF 2 USER DIAGHOSTICS Press the 2 key SETUP b The following screen will be displayed 1 RECORD II 2 RECORD 5 SAVE RESTORE RECORD 4 SET TIME SET LANGUAGE Press the 5 key SET LANGUAGE c The following screen will be displayed 1 2 TURE ISH 2 SPAHISH Select the preferred interface language by pressing the corresponding key on the keypad 1 2 The interface language will be set and a confirmation screen will be displayed as shown below EMGLISH SET Press any key to return to the START UP menu REV1 TRM 203 AND TRM 403 USER S MANUAL 3 10 Performing a Three Phase Resista
8. QWERTY style membrane keypad is used to enter test information and operate the unit REV 1 TRM 203 AND TRM 403 USER S MANUAL Computer Interface The TRM 203 403 can be connected to a PC via the unit s RS 232C USB or Bluetooth interface A can be used to control the TRM 203 403 to perform transformer resistance tests Test records stored in the TRM 203 403 or a USB Flash drive can also be retrieved reviewed and printed Test records are automatically exported to PDF Excel and XML formats Safety Features The TRM 203 403 automatically dissipates the energy stored in the transformer at the end of each test The discharge circuit will continue to work even if the TRM 203 403 power supply is lost Test Record Storage The TRM 203 403 can store up to 256 static test records 111 tests per record and 120 dynamic test records internally For external test record storage the TRM 203 403 features a USB Flash drive interface port Up to 999 test records can be stored on a connected USB Flash Drive TRM 203 AND TRM 403 USER S MANUAL REV 1 1 2 TYPE PHYSICAL SPECIFICATIONS OPERATING VOLTAGE RESISTANCE READING RANGE ACCURACY TEST CURRENT TEST VOLTAGE INPUT CHANNELS DISPLAY PRINTER INTERNAL DATA STORAGE EXTERNAL DATA STORAGE COMPUTER INTERFACES SAFETY ENVIRONMENT HUMIDITY MAX ALTITUDE MAX CABLES OPTIONS WARRANTY Technical Specifications Table 1 TRM 203 403 Technica
9. Continue to step o 2 NO Press the 2 key NO if you do not want to save the test record The following screen will be displayed B T TRM 203 AND TRM 403 USER S MANUAL REV 1 TOU SURE DATA WILL EE LOST 1 DO SAVE RECORD 2 RECORD Press the 1 key DO NOT SAVE RECORD if you do not want to save the record You will be returned to the START UP menu Press the 2 key SAVE RECORD to save the record Continue to step o o The following screen will be displayed RECORD HUMBER HAS BEEH SAVED Press any key to return to the START UP menu The test results can be printed using the instructions in section 3 17 2 A sample special resistance test results printout is shown in Figure 11 RECORD NUMBER 10 TEST RESULTS DATE 07731712 TIME 13 04 40 COMPANY VIC STATION LAB CIRCUIT 16F TO 16L VIC MODEL SN KVA 75KVA OPERATOR VN SPECIAL TEST HAL HO TESTED AT 20 AMPS T O MIN Rm 1 702 MILLI OHMS I 20 016 AMPS T 0 5 MIN Rm 1 701 MILLI OHMS I 20 012 AMPS 1 0 MIN Rm 1 702 MILLI OHMS I 20 016 AMPS 1 5 MIN Rm 1 701 MILLI OHMS I 20 017 AMPS 2 0 MIN Rm 1 701 MILLI OHMS I 20 017 AMPS Figure 11 Typical Special Resistance Test Results Printout REV1 TRM 203 AND TRM 403 USER S MANUAL 3 14 Performing a Dynamic LTC Test The Dynamic LTC Test is used to conduct a resistance test w
10. Add a device Add a printer 4 Devices 1 Right click on the TRM 20 icon and select Properties from the pop up menu h The properties window will be displayed Click on the Hardware tab TRM 403 Properties x 1 TRM 403 68004 Device Functions Ports COM amp LPT Device Function Summary Manufacturer Microsoft Location on Bluetooth Device RFCOMM Protocol TDI Device status This device is working properly Note the port number listed after the device name 23 in the above example Use this port number in the LTCA software to connect to the TRM REV 1 TRM 203 AND TRM 403 USER S MANUAL 3 3 Typical Connections to a Load Tap Changer LTC Figure 2 Typical Connections to a Load Tap Changer LTC 3 4 Typical TRM 203 403 Cable Connections AN Do not touch or disconnect any test lead that is connected to a transformer terminal while high current is being conducted during a test Failure to heed WARNINGS this warning can result in electric shock to personnel and or damage to the equipment e Disconnect the test clips from the transformer bushing only after the TRM has completely discharged the transformer Always disconnect the test clips slowly from the transformer bushing to prevent an accidental flash over Figure 3 Typical TRM Connections Diagram n TRM 203 AND TRM 403 USER S MANUAL REV 1 3 5 Typical Connections for a Dynamic Resis
11. MANUAL g The following screen will be displayed 1 DELTA 2 HYE HELTEBL 2 5 HYE 2 4 SINGLE PHASE For this example we will test a single phase so press the 4 key S NGLE PHASE h The following screen will be displayed SELECT FHASE 1 H xi H xB PH 2 z Hesz HesB8 B Z bH n5 H x8 PH C d 1 aS CA FH zZ H4xz H2xs1 B 6 H x3 H men CA FH C Select the phase to test by pressing the corresponding numeric key For this example we will be testing phase H X1 H XO so press the 1 key i The following screen will be displayed SELECT TEST zi itn Be CHE uU EH Lei FLE pan Select the test current by pressing the corresponding numeric key on the keypad Press the 6 key CUSTOM if you would like to enter a custom test current and then enter the current between 1A 40A on the next screen j The following screen will be displayed COMVERT READINGS TU 5 TAKDAEN TEMPS l TES TRM 203 AND TRM 403 USER S MANUAL REV 1 1 YES Press the 1 key YES if you wish to convert readings to standard temperature The following screen will be displayed HIHDIHG MATERIAL 1 COPPER da ALUMINUM 2 MANUALLY ENTER Press the 1 key COPPER Tk 234 5 to select copper as the winding material Continue to step k Press the 2 key A
12. TESTS 1 SIHGLE PHS H xli H xB 485 210081 Continue to press the A or the v key until you have found the test record that you would like to restore then press the ENTER key The following screen will be displayed RECORD RESTORED FEINT RECORD 1 TES 2 HU Press the 1 key YES if you would like to print the restored test record The test record will be printed and you will be returned to the START UP menu The restored record will remain in the working memory Press the 2 key NO if you do not want to print the test record You will be returned to the START UP menu The restored test record will remain in the working memory TRM 203 AND TRM 403 USER S MANUAL REV 1 3 17 5 Copying Test Records to a USB Flash Drive Use the steps below to copy one or all test records from the unit s Flash EEPROM to a connected USB Flash drive a Make sure a USB Flash drive is connected to the unit s USB MEM port and then start from the START UP menu sR BT ATTSOiT 1 RUN TEST 2 SETUP TD FOF USEF DIAGHOSTICS Press the 2 key SETUP b The following screen will be displayed 1 RECORD II 2 RECORD 5 SAYE RESTORE RECORD 4 SET TIME LANGUAGE Press the 3 key SAVE RESTORE RECORD c The following screen will be displayed RESTORE RECORD 2 SAVE RECORD z DIRECTOR 4 ERASE RECORD 5 COPY TO
13. USER S MANUAL e The following screen will be displayed l RESTORE RECORD ENTER RECORD HUMBER CROLL TO SELECT ENTER RECORD NUMBER Press the 1 key ENTER RECORD NUMBER to quickly restore a specific record number from the unit s internal Flash EEPROM If you do not know the record number you can first print a test shot directory see section 3 17 3 The following screen will be displayed RESTORE RECORD HUMBER Type the test record number that you would like to restore and then press the ENTER key The following screen will be displayed RECORD RESTORED FEINT RECORD 1 TES 2 HU Press the 1 key YES if you would like to print the restored test record The test record will be printed and you will be returned to the START UP menu The restored record will remain in the working memory Press the 2 key NO if you do not want to print the test record You will be returned to the START UP menu The restored test record will remain in the working memory REV1 TRM 203 AND TRM 403 USER S MANUAL 2 SCROLL TO SELECT Press the 2 key SCROLL TO SELECT to scroll through the test records stored in the unit s Flash EEPROM and then select one to be restored The following screen will be displayed RECORD DIRECTORY TO SCROLL TO SCROLL EYS Press either the A or the v key The following screen will be displayed 12 17431 HUM OF
14. be selected in this example Warning messages are indicated as Important notes are indicated as i TRM 203 AND TRM 403 USER S MANUAL REV 1 1 0 INTRODUCTION 1 1 General Description and Features The TRM 203 and TRM 403 are three phase transformer winding resistance meters that allow the user to connect all test cables to the transformer bushings The unit will then measure the transformer resistance value for each of the phases without the need to disconnect and reconnect cables for each phase The TRM 203 and TRM 403 can provide a fast and stable reading of very large transformers by utilizing a 60Vdc power supply The TRM 203 is capable of outputting a selectable test current from 1A to 20A while the TRM 403 s test current is selectable from 1A to 40A Since both units can accurately measure resistance from 1 micro ohm to 500 Ohms up to 2000 Ohms for the TRM 203 they can be used as micro ohm meters to measure EHV circuit breaker contact resistance or for any low resistance measuring application For a Delta transformer the TRM 203 403 can measure the phase resistance readings and provide the individual Delta winding resistance values The TRM 203 403 can also provide the individual winding resistance values for a Wye transformer without the neutral terminal If the transformer winding resistance temperature is available at the time of testing the TRM 203 403 can calculate the equivalent resistance value at any te
15. become familiar with them before using the TRM Accidental misuse of the controls will usually cause no serious harm Users should also be familiar with the safety summary found on the front page of this User s Manual Load Tap LTC Back Lit LCD Screen Input Power Ground Changer Raise 4 Lower 128 x 64 pixels Connector with Stud Control Fuses Viewable in direct Third wire sunlight and low light Safety Ground Bluetooth Indicator RS 232C Computer Interface USB Computer Interface I E USB Flash Drive Interface Transformer Bushing Connectors LTC Rugged Raise and Lower QWERTY Style 2 5 Wide Switches Membrane Keypad Thermal Printer Voltage Presence Transformer Warning Energy Discharge Indicator Indicator Figure 1 TRM 203 403 Controls and Indicators TRM 203 AND TRM 403 USER S MANUAL 2 0 PRE TEST SETUP 2 1 Operating Voltages The TRM s operating voltages are 100 240 Vac 50 60 Hz 2 2 LCD Screen Contrast Control To increase the LCD screen contrast press and hold the A key for at least two seconds Release the A key when the desired contrast level has been reached To decrease the LCD screen contrast press and hold the v key for at least two seconds Release the v key when the desired contrast level has been reached 2 3 Printer Paper Control To advance the TRM printer paper press and release the A key To retract the TRM printer paper press and release the v key 2 4 Printer Pape
16. station name using the keypad and then press the ENTER key e The following screen will be displayed f Type the circuit information using the keypad and then press the ENTER key The following screen will be displayed Type the manufacturer name using the keypad and then press the ENTER key TRM 203 AND TRM 403 USER S MANUAL g The following screen will be displayed MOTEL Tel TO POSITION TO ACCEPT Type the model information using the keypad and then press the ENTER key h The following screen will be displayed j SERIAL HUMBER Tel TO POSITION ENTER TO ACCEPT Type the serial number using the keypad and then press the ENTER key The following screen will be displayed EVA EATING Tel TO POSITION TO ACCEPT Type the transformer s KVA rating using the keypad and then press the ENTER key The following screen will be displayed OPERATOR Tel TO POSITION ENTER TO ACCEPT Type the operator s name using the alpha numeric keypad and then press the ENTER key All header information will be saved and you will be returned to the START UP menu REV1 TRM 203 AND TRM 403 USER S MANUAL 3 8 Setting the Date and Time To set the date and time a Start from the START UP menu TEc Bro2m012 1 RUM TEST 12 15 11 2 SETUP 220 TAF 2 USER DITAGHOSTICS Press the 2 key SETUP
17. 203 AND TRM 403 USER S MANUAL ERASE RECORD 1 ERASE SINGLE REC ERASE ALL RECORDS STOP TO EXIT Follow the steps above to erase additional records or press the STOP key to return to the START UP menu 2 ERASE ALL RECORDS Press the 2 key ERASE ALL RECORDS to erase all test records from the unit s Flash EEPROM The following screen will be displayed ERASE ALL RECORDS SURE TO CONTINUE Press the ENTER key to continue or you can press the STOP key to cancel A progress screen will be displayed while the records are being erased Once all records have been erased the following screen will be displayed RECORDS ERASED Press any key to return to the START UP menu TRM 203 AND TRM 403 USER S MANUAL REV 1 3 18 Converting Resistance Measurements The TRM can convert the resistance reading of the device under test at its present temperature to the equivalent resistance value at a different temperature The conversion is accomplished by the following formula Rs Rm Ts Tk Tm Tk Where Rs is the resistance at desired temperature Rm is the measured resistance Ts is the desired reference temperature Tm is the temperature at which the resistance was measured Tk is the constant used for the winding material Tk 234 5 for copper Tk 225 0 for aluminum Vanguard Instruments Company Inc 1520 S Hellman Ave e Ontario CA 91761
18. 3 LOWER Rm 1 461 MILLI OHMS I 40 043 AMPS TAP 2 LOWER Rm 1 836 MILLI OHMS I 40 037 AMPS TAP 1 LOWER Rm 2 210 MILLI OHMS I 40 037 AMPS TAP NEUTRAL Rm 3 435 MILLI OHMS I 40 034 AMPS TAP 1 RAISE Rm 3 553 MILLI OHMS I 40 032 AMPS TAP 2 RAISE Rn 2 138 MILLI OHMS I 40 030 AMPS TAP 3 RAISE Rm 1 434 MILLI OHMS I 40 030 AMPS Figure 10 Typical LTC Voltage Regulator Test Report Printout n TRM 203 AND TRM 403 USER S MANUAL REV 1 3 13 Performing a Special Resistance Test The Special Resistance Test is used to conduct a resistance test for a pre defined period ranging from 1 to 90 minutes The resistance data is recorded either at 30 second or 60 second intervals Use the steps below to perform a Special Resistance Test a Start from the START UP menu 1 RUM TEST 87731212 MUN 12 12 11 Mr E T LI F TRAE TIE 2 USER DIAGHOSTICS Press the 1 key RUN TEST b The following screen will be displayed 1 RESISTANCE TEST 2 SPECIAL RES TEST 2 LTC TEST 4 DEGAUSS WINDING Press the 2 key SPECIAL RES TEST c The following screen will be displayed SELECT PHASE 1 H xi H xB PH 2 2 2 PH B Z bH n25 H x8 PH C CA CA FH E CA FH C Select the phase to test by pressing the corresponding numeric key on the keypad For this exampl
19. 5 0 to select aluminum as the winding material Continue to step g Press the 3 key WANUALLY ENTER Tk to manually enter the Tk value The following screen will be displayed REV1 TRM 203 AND TRM 403 USER S MANUAL TI TO ADJUST TE TO ACCEFT You can increase the Tk value by 0 5 C increments by pressing the A key You can decrease the Tk value by 0 5 C increments by pressing the v key Press the ENTER key to confirm the temperature setting Continue to step g 2 NO Press the 2 key NO if you do NOT wish to convert readings to standard temperature Continue to step i g The following screen will be displayed Wells re TI TO ADJUST TK TO ACCEPT Use the A and v keys to adjust the D U T Device Under Test temperature Press the ENTER key to confirm the D U T temperature setting h The following screen will be displayed TEMP 167 BOF TI TO ADJUST TE TO ACCEPT Use the and v keys to adjust the reference temperature Press the ENTER key to confirm the reference temperature setting LIUM TRM 203 AND TRM 403 USER S MANUAL REV 1 i The following screen will be displayed Hobe Po DANGEROUS FLASH OVER HILL IF CABLES ARE DIZCDOHHECTELD This warning is a reminder that the next seque
20. CA software Follow the steps below to properly connect the TRM and configure the LTCA application to recognize the unit a Install the LTCA software please see the LTCA software user s manual for details b Connect the TRM to the PC by connecting a USB cable from an open USB port on the PC to the unit s USB PC port c Turn on the power on the d Ifthis is the first time you are connecting the unit to the PC Windows will recognize it as a new device and automatically install necessary drivers If using Windows XP you may be prompted to install drivers Select the automatic installation option and Windows will locate the generic drivers necessary e Please note that although the unit is connected via USB it uses an internal serial interface to communicate with the PC As such it will appear in the windows Device Manager as a USB Serial Port Open the Device Manager from the Windows Control Panel and note the COM port number For example in the installation shown below the is shown as COM10 USB Serial Port gt Device Manager File Action View Help 4 Computer sat Disk drives a Display adapters DVD CD ROM drives ie Floppy disk controllers H Floppy disk drives ka Human Interface Devices IDE ATA ATAPI controllers EP Keyboards Mice and other pointing devices Monitors Network adapters BW Belkin Wireless G Desktop Card 2 Realtek RTLS168 9111 PCI E Gig
21. Charged Dis charged L A Figure 9 Tap Testing Order for Three Phases Test Finish Use the steps below to perform an LTC Voltage Regulator Test a Start from the START UP menu BHrzZBelz RUN TEST EN iy ELIE 234 5 USER DTAGHOSTICS Press the 1 key RUN TEST b The following screen will be displayed RESISTANCE TEST 2 RES TEST 2 LTC TEST 4 DEGAUSS WINDING Press the 1 key RESISTANCE TEST HIM oo TRM 203 AND TRM 403 USER S MANUAL The following screen will be displayed LTC YTO REGULATOR 1 YES ee Press the 1 key YES d The following screen will be displayed EHTER HUMBER OF RAISE TAPS COUNTING 5 1 10 the number of taps the LTC or Voltage Regulator has using the alpha numeric keypad and then press the ENTER key We will enter 3 for our example e The following screen will be displayed f en HUMBER OF 1 OME 2 THREE SIYE Select the number of neutral taps by pressing the corresponding numeric key on the keypad The following screen will be displayed 5 LOWERs 5 REAISE IS THIS CORRECT 1 YES If the tap information is correct press the 1 key YES and continue to step f If the tap information is incorrect press the 2 key NO and return to step d REV1 TRM 203 AND TRM 403 USER S
22. LUMINUM Tk 225 0 to select aluminum as the winding material Continue to step k Press the 3 key WANUALLY ENTER Tk to manually enter the Tk value The following screen will be displayed Tl TO ADJUST TK TO ACCEPT You can increase the Tk value by 0 5 C increments by pressing the A key You can decrease the Tk value by 0 5 C increments by pressing the v key Press the ENTER key to confirm the temperature setting Continue to step k 2 NO Press the 2 key NO if you do NOT wish to convert readings to standard temperature Continue to step m k The following screen will be displayed REV1 TRM 203 AND TRM 403 USER S MANUAL H L T TEMFE 25 500 TO ADJUST TK TO ACCEPT Use the A and v keys to adjust the D U T Device Under Test temperature Press the ENTER key to confirm the D U T temperature setting The following screen will be displayed TEMP ais alr TI TO ADJUST TE TO ACCEPT Use the A and v keys to adjust the reference temperature Press the ENTER key to confirm the reference temperature setting m The following screen will be displayed DANGEROUS FLASH OVER WILL OCCUR IF CABLES DIZCDOHHECTELD eh ci ki pi eka eh kis pea eka cha k s pos cha KK Press any key to continue n The following screen will be displayed STATIC LIC
23. NUMBER OF TESTS 2 STATION LAB CIRCUIT MODEL TRM 403 SAN 310001 Figure 13 Sample Thumb Drive Test Record Directory Printout TEST DIRECTORY RECORD NUMBER 5 DATE TIME 23 12 17 43 58 SINGLE PHASE TEST 2 1 NUMBER OF TESTS 4 STATION LAB CIRCUIT MFR MODEL TRM 403 S N 310001 RECORD NUMBER 4 DATE TIME 23 12 17 42 50 SINGLE PHASE TEST H 3 H xO NUMBER OF TESTS 3 STATION LAB CIRCUIT MODEL 403 SAN 310001 RECORD NUMBER 3 DATE TIME 23 12 17 41 53 SINGLE PHASE TEST 2 NUMBER OF TESTS 2 STATION LAB CIRCUIT MODEL TRM 403 SAN 310001 RECORD NUMBER 2 DATE TIME O7 T 23 12 17 40 52 SINGLE PHASE TEST H781 H KO NUMBER OF TESTS i STATION LAB CIRCUIT MODEL TRM 403 SzH 310001 RECORD NUMBER 1 DATE TIME 23 12 17 31 26 SINGLE PHASE TEST 1 H xO NUMBER OF TESTS i STATION LAB CIRCUIT MODEL TRM 403 SAN 310001 Figure 14 Sample Internal Test Record Directory Printout TRM 203 AND TRM 403 USER S MANUAL 3 17 4 Restoring a Test Record Use the steps below to restore a test record from the TRM s internal Flash EEPROM or a connected USB Flash drive to the working memory a Start from the START UP menu Press the 2 key SETUP b The following screen will be displayed Press the 3 key SAVE RESTORE REC
24. ORD c The following screen will be displayed Press the 1 key RESTORE RECORD le If a USB Flash drive is connected continue to step d If a USB Flash drive is NOT connected continue to step e REV1 TRM 203 AND TRM 403 USER S MANUAL d The following screen will be displayed 1 INTERNAL STORAGE 2 1 INTERNAL STORAGE Press the 1 key INTERNAL STORAGE to restore a test record from the unit s internal Flash EEPROM Continue to step e 2 THUMB DRIVE Press the 2 key THUMB DRIVE to restore a test record from a connected USB Flash drive The following screen will be displayed RESTORE DEIVE REC Type the record number using the keypad and then press the ENTER key If you do not know the record number you can first print a test record directory see section 3 17 3 After the test record has been restored to the working memory the following screen will be displayed REC 881 RESTORED PRINT RECORD 1 YES 2 HU Press the 1 key YES if you would like to print the restored test record The test record will be printed and you will be returned to the START UP menu The restored record will remain in the working memory Press the 2 key NO if you do not want to print the test record You will be returned to the START UP menu The restored test record will remain in the working memory ES n TRM 203 AND TRM 403
25. R 1 943 0 gt TEST SAVED The TRM will continue to test the next phase The following screen will be displayed FMR CHARGING PLEASE WAIT FMR ENERGIZED The current will be ramped up and the screen updated accordingly n TRM 203 AND TRM 403 USER S MANUAL CHARGING 2 1 PLEASE WAIT 16 05 AMPS ENERGIZED Once the resistance reading is stable it will be displayed the screen TEST FEDGEEZS 1 11 24 ARPS m L946 TO ACCEPT PHS Press the ENTER key to save the readings for this phase m The following screen will be displayed TESI FROGEESS 12 11 24 AMPS 1 346 Q TEST SAVED The TRM will continue to test the next phase The following screen will be displayed CHART Mio 5 2 PLEASE WAIT EHERDIZED current will be ramped up and the screen updated accordingly REV 1 TRM 203 AND TRM 403 USER S MANUAL Once the resistance reading is stable it will be displayed on the screen Press the ENTER key to save the readings for this phase n The following screen will be displayed Press any key to continue o The following screen will be displayed Press the 2 key NO TRM 203 AND TRM 403 USER S MANUAL REV 1 p The following screen will be displayed Press the 1 key YES to save the test record
26. RECORD II 2 PRINT RECORD 5 SAVE RESTORE RECORD 4 SET TIME LANGUAGE Press the 2 key PRINT RECORD c The following screen will be displayed while the report is being printed PLEASE WAIT You will be returned to the START UP menu when printing is finished REV1 TRM 203 AND TRM 403 USER S MANUAL 3 17 3 Printing a Test Record Directory A listing of all the test records in the TRM s internal Flash EEPROM or on a connected USB Flash drive can be printed on the built in thermal printer using the steps below a Start from the START UP menu SERE TEC are 26 11 1 RUM TEST 13 45 25 2 SETUP ae z USER DIAGHOSTICS Press the 2 key SETUP b The following screen will be displayed 1 RECORD II 2 RECORD 5 SAYE RESTORE RECORD 4 SET TIME LANGUAGE Press the 3 key SAVE RESTORE RECORD c The following screen will be displayed l RESTORE RECORD 2 RECORD 3 RECORD DIRECTORY 4 ERASE RECORD a COPY TO THUMB DEIYE Press the 3 key RECORD DIRECTORY If a USB Flash drive is connected to the unit continue to step d If a USB Flash drive is NOT connected to the unit continue to step e TRM 203 AND TRM 403 USER S MANUAL REV 1 d The following screen will be displayed 1 INTERNAL DIRECTORY Press the 1 key INTERNAL DIRECTORY to print a directory of test records store
27. Results Printout 41 Figure 8 Tap Testing Order for a Single 42 Figure 9 Tap Testing Order for Three 43 Figure 10 Typical LTC Voltage Regulator Test Report 51 Figure 11 Typical Special Resistance Test Results 58 Figure 12 Typical Dynamic LTC Test Results Printout Showing an Opened Circuit 63 Figure 13 Sample Thumb Drive Test Record Directory Printout 73 Figure 14 Sample Internal Test Record Directory Printout 73 LIST OF TABLES Table 1 TRM 203 403 Technical Specifications eese 4 REV 1 TRM 203 AND TRM 403 USER S MANUAL CONVENTIONS USED IN THIS DOCUMENT This document uses the following conventions Both the TRM 203 and TRM 403 are simply referred to as TRM in this manual The exact model number is used only in cases where differences between the units are discussed A key switch or knob on the TRM is indicated as KEY SWITCH KNOB Menu names are referenced as MENU NAME TRM LCD screen output is shown as When instructions are provided the menu item that should be selected is printed in bold as shown below option 3 should
28. T 4 DEGAUSS WINDING Press the 1 key RESISTANCE TEST c The following screen will be displayed 1 DELTA 2 HYE 2 5 HYE 2 4 SINGLE PHASE Press the 4 key S NGLE PHASE d The following screen will be displayed SELECT FHASE 1 1 PH 2 2 He amp mz HeosBOCUTH FH E 2 H 3 CYH PH C3 4 1 CA A 2 1 CA PH Z CA FH Ch HZ He x2 TRM 203 AND TRM 403 USER S MANUAL REV 1 Select the phase to test by pressing the corresponding numeric key on the keypad For this example we will be testing phase H X1 H XO so press the 1 key e The following screen will be displayed SELECT TEST CLEREHT 1 in 2 dH 5 1 d E Sta FHA BE CHE TO Select the test current by pressing the corresponding numeric key on the keypad Press the 6 key CUSTOM if you would like to enter a custom test current and then enter the current between 1A 40A on the next screen f The following screen will be displayed COMVERT READINGS TU TAMDARD TEMPS 1 YES Press the 1 key YES if you wish to convert readings to standard temperature The following screen will be displayed HIHDIHG MATERIAL TE 234 5 ALUMINUM TEZZZ3 8 2 MANUALLY ENTER Press the 1 key COPPER Tk 234 5 to select copper as the winding material Continue to step g Press the 2 key ALUMINUM Tk 22
29. THUMB DRIVE Press the 5 key COPY TO THUMB DRIVE REV1 TRM 203 AND TRM 403 USER S MANUAL d The following screen will be displayed CORY REC TO THUMB DEY l LOFTY SIHGLE RECORD 2 ALL RECORDS 1 COPY SINGLE RECORD Press the 1 key COPY SINGLE RECORD to copy a single test record from the unit s Flash EEPROM to the connected USB Flash drive The following screen will be displayed EHTER RECORD HUMBER TO CUPY TO FLASH HUMBER Type the record number using the alpha numeric keypad and then press the ENTER key The test record will be copied to the USB Flash drive and the following screen will be displayed REC 811 SAYED TU THUMB DRIVE Press any key to return to the START UP menu TRM 203 AND TRM 403 USER S MANUAL REV 1 2 COPY ALL RECORDS Press the 2 key COPY ALL RECORDS to copy all test records from the TRM s Flash EEPROM to the connected USB Flash drive All test records will be copied from the unit to the connected USB Flash drive The following screen will be displayed when the process is finished Press any key to return to the START UP menu REV 1 TRM 203 AND TRM 403 USER S MANUAL 3 17 6 Erasing Test Records Use the steps below to erase test records from the TRM s Flash EEPROM or from a connected USB Flash drive a Start from the START UP menu Press the 2 key SETUP b The following screen will be displayed P
30. TRM 203 and TRM 403 TRANSFORMER RESISTANCE METERS USER S MANUAL Vanguard Instruments Company Inc 1520 S Hellman Ave Ontario California 91761 USA TEL 909 923 9390 August 2015 FAX 909 923 9391 Revision 1 5 TRM 203 AND TRM 403 USER S MANUAL REV 1 SAFETY SUMMARY NOTICE This manual applies to both the TRM 203 and TRM 403 transformer resistance meters The operating procedures are virtually the same for both models and any differences are clearly described where applicable FOLLOW EXACT OPERATING PROCEDURES Any deviation from the procedures described in this User s Manual may create one or more safety hazards may damage the TRM 203 403 damage the test transformer or cause errors in the test results Vanguard Instruments Company Inc assumes no liability for unsafe or improper use of the TRM 203 403 All safety precautions provided in this manual must be observed during all phases of testing including test preparation test lead connection actual testing and test lead disconnection SAFETY WARNING AND CAUTIONS The TRM 203 403 shall be used only by trained operators All transformers under test shall be off line and fully isolated DO NOT MODIFY TEST EQUIPMENT To avoid the risk of introducing additional or unknown hazards do not install substitute parts or perform any unauthorized modification to any TRM 203 403 test unit To ensure that all designed safety features are maintained it is highly recom
31. abit Ethernet NIC 5 9 Ports amp LPT Some Miki LISE Serial Port COM10 REV1 TRM 203 AND TRM 403 USER S MANUAL f Launch the LTCA application and then click on the Settings icon The following window will be displayed Application Setup Communications For TRM Device always disable USB and select serial port Use USB Port COM Port 1 Graph and Overlay Settings N I BEC EN E Graph Main Graph T W Motor Current gt W Test Current Export to Excel Make sure the User USB Port is UN checked Then from the COM Port drop down menu select the COM port that corresponds to the port that the TRM is connected to Then click the OK button The LTCA software will now recognize the TRM TRM 203 AND TRM 403 USER S MANUAL REV 1 3 2 Connecting the TRM to a PC via Bluetooth The TRM can also be connected wirelessly to a PC using Bluetooth To connect the unit via Bluetooth it must first be paired with the PC Follow the steps below to pair the TRM to a PC via Bluetooth For Windows XP a Make sure the TRM is turned on Then double click on the Bluetooth system tray icon on the bottom right corner of your computer screen b The My Bluetooth Places window will be displayed My Bluetooth Places Sele ae File Edit View Bluetooth Favorites Tools Help Address My Bluetooth Places w Go 3 Back d P S
32. asskey and then click Next If you do not the passkey see the instructions that came with TR 8001 Back Next Cancel Type the word default without the quotes and in all lower case and then click on the Next button e The following window will be displayed with the option to connect to the TRM as a serial port Bluetooth Service Selection hk Select the services you are interested in The following services are available through the selected Bluetooth Device Select the service that you want ta access on the selected device Connect to this service EJ AT Serial Establish a virtual serial port connection with a remote Bluetooth device The connection can then be used by any application that supports the COM port number assigned Make sure to check the box next to AT Serial and then click on the Next button DOM n TRM 203 AND TRM 403 USER S MANUAL REV 1 f The following confirmation screen will be displayed Bluetooth Setup Wizard Completion Page M DM X TS ye ai Completing Bluetooth Setup X GAN Wizard A BA TRM 403 68001 AT Serial e ai 4 Connect to the remote device using this connection shortcut m Create a shortcut and then restart this wizand so that can create additional shortcuts To complete this connection click Finish Click on the Finish button g The TRM 20 will now be displayed in the My Bluetooth Places
33. d gt Enter the device s pairing code The device comes with a pairing code Check for one on the device or in the device manual Pair without using a code This type of device such as a mouse does not require a secure connection How can I tell if my device has a pairing code Click on Enter the device s pairing code option EZ REV 1 TRM 203 AND TRM 403 USER S MANUAL e The following window will be displayed Enter the pairing code for the device This will verify that you are connecting to the correct device Fo The code is either displayed on your device or in the information that came with the device What if I can t find the device pairing code Type the word default without the quotes and in all lower case in the text box and click on the Next button f The following screen will be displayed This device has been successfully added to this computer Windows is now checking for drivers and will install them if necessary You may need to wait for this to finish before your device is ready to use To verify if this device finished installing properly look for it in Devices and Printers Click on the Close button DINEM n TRM 203 AND TRM 403 USER S MANUAL REV 1 g The TRM will now be listed under Bluetooth Devices ee a Devices and Printe Bluetooth Devices Search Devices and Printers p File Edit View Tools Help
34. d in the unit s Flash EEPROM Continue to step e 2 THUMB DRIVE DIR Press the 2 key THUMB DRIVE DIR to print a directory of test records stored on a connected USB Flash drive The directory will be printed on the unit s built in thermal printer and you will be returned to the START UP menu A typical thumb drive directory printout is shown in Figure 13 e The following screen will be displayed Press the 2 key SHORT DIRECTORY The directory will be printed and you will be returned to the START UP menu A typical internal directory printout is shown in Figure 14 TRM 203 AND TRM 403 USER S MANUAL THUMB DRV DIR THUMB DRY FILENAME REC OOO DATE TIME Of z23 12 17 45 49 SINGLE PHASE TEST H RS H x2 NUMBER OF TESTS 6 STATION LAB CIRCUIT MFR MODEL TRM 403 S N 310001 THUMB FILENAME REC OO1 DATE TIME 07423412 17 44 56 SINGLE PHASE TEST H X1 H X3 NUMBER OF TESTS 5 STATION LAB CIRCUIT MODEL 403 S N 310001 THUMB DRY FILENAME REC OO2 DATE TIME 07 23 12 17 43 58 SINGLE PHASE TEST H x2 H X1 NUMBER OF TESTS 4 STATION LAB CIRCUIT MFR MODEL SAN THUMB DRY FILENAME REC 003 DATETIME O 23 12 17 42 50 SINGLE PHASE TEST H XO NUMBER OF TESTS 3 STATION LAB CIRCUIT MODEL TRM 403 SAN 310001 THUMB FILENAME REC_OO4 DATE TIME 23 12 17 41 53 SINGLE PHASE TEST H cxz
35. deleting additional records from the connected USB Flash drive Follow the steps above to erase additional records or press the STOP key to return to the START UP menu 2 ERASE ALL RECORDS Press the 2 key ERASE ALL RECORDS to erase all records from the connected USB Flash drive The following screen will be displayed Press the ENTER key if you would like to erase ALL the test records stored on the connected USB Flash drive All records will be erased and the following screen will be displayed TRM 203 AND TRM 403 USER S MANUAL ALL RECORDS ERASED Press any key to return to the START UP menu e The following screen will be displayed ERASE RECORD 1 ERASE SINGLE REC ERASE ALL RECORDS STOP TO EXIT 1 ERASE SINGLE REC Press the 1 key ERASE SINGLE REC to erase a single test record from the unit s Flash EEPROM The following screen will be displayed ERASE RECORD HUMBER Type the record number that you would like to erase and then press the ENTER key If you do not know the record number you can first print a record directory please see section 3 17 3 The selected record will be erased and the following screen will be displayed RECORD HUMBER 1 ERASED Press any key to continue The following screen will be displayed allowing you to continue deleting additional records from the unit s internal Flash EEPROM REV1 TRM
36. dicated on the LCD screen and press the START key The TRM will continue the test and display the results as in step n Repeat steps p through q for all Lower positions Neutral Position if any and then through all Raise positions r The following screen will be displayed after the last Raise position s resistance reading is stored RECORD lc Wee Sa 1 YES Press the 1 key YES to print the test results on the built in thermal printer A Typical LTC Voltage Regulator test report is shown in Figure 10 Continue to step s 2 NO Press the 2 key NO to bypass printing of the test results Continue to step s s The following screen will be displayed SAVE THIS RECORD 2 1 YES Press the 1 key YES to save the test record The following screen will be displayed n TRM 203 AND TRM 403 USER S MANUAL REV 1 Press any key to return to the START UP menu 2 NO If you do not wish to save the test record press the 2 key NO The following screen will be displayed Press the 1 key DO NOT SAVE RECORD to NOT save the test record You will be returned to the START UP menu REV 1 TRM 203 AND TRM 403 USER S MANUAL TEST RESULTS DATE 07 31 12 TIME 10 45 57 COMPANY STATION CIRCUIT MFR MODEL SN KVA RTG OPERATOR STATIC LTC TEST H X1 H xO TESTED AT 40 AMPS TAP
37. e we will be testing phase H X1 H XO so press the 1 key REV1 TRM 203 AND TRM 403 USER S MANUAL d The following screen will be displayed SPECIAL TEST MODE SEC INTERVAL TO 45 2 GE SEC IKTEEYAL TO 9B Select the test interval by pressing the corresponding numeric key on the keypad For this example we will press the 1 key for a 30 second interval e The following screen will be displayed f EHTER SFECIAL TEST TIME MINUTES 51 450 Enter the test time using the alpha numeric keypad and then press the ENTER key The following screen will be displayed SELECT TEST CURFEHT 1A 2 OA 5 IBA d zm ch JAA Be CHE uU Select the test current by pressing the corresponding numeric key on the keypad Press the 6 key CUSTOM if you would like to enter a custom test current and then enter the current between 1A 40A on the next screen g The following screen will be displayed CONVERT READINGS TO STANDARD TEMP 1 YES HU TRM 203 AND TRM 403 USER S MANUAL REV 1 1 YES Press the 1 key YES if you wish to convert readings to standard temperature The following screen will be displayed HIHDIHG MATERIAL 1 COPPER da ALUMINUM 2 MANUALLY ENTER Press the 1 key COPPER Tk 234 5 to select copper as the winding material Continue to step h Press the 2 key ALUMINUM Tk 225 to select aluminum as the wind
38. e USA Phone 909 923 9390 e Fax 909 923 9391 www vanguard instruments com Copyright 2015 by Vanguard Instruments Company Inc TRM 203 403 User s Manual e Revision 1 5 e August 24 2015 e TA
39. e current reading Press the STOP key when done m The following screen will be displayed FEIMT TEST RESULTS l TES 2 ML Press the 1 key YES to print the test results or the 2 key NO if you do not want to print the test results A sample single phase resistance test printout is shown in Figure 7 LIN n TRM 203 AND TRM 403 USER S MANUAL n The following screen will be displayed Press the 1 key YES o The following screen will be displayed Press any key to continue p The following screen will be displayed Press the 1 key YES to save the test record q The following screen will be displayed Press any key to return to the START UP menu REV1 TRM 203 AND TRM 403 USER S MANUAL TEST RESULTS DATE 30 12 TIME 14 27 59 COMPANY STATION CIRCUIT KV amp RTG OPERATOR SINGLE PHASE TEST H781 TESTED 40 AMPS Rm 1 492 MILLI OHMS I 39 909 AMPS TAP AWINDING DATE 07 30 12 TIME 14 27 59 Figure 7 Typical Single Phase Resistance Test Results Printout TRM 203 AND TRM 403 USER S MANUAL REV 1 3 12 Performing a Load Tap Changer Voltage Regulator Resistance Test The Load Tap Changer Voltage Regulator Resistance Test can be used to conveniently measure the resistance at each tap position Once the number of taps has been entered the TRM will request the user to s
40. earch Folders E Bluetooth Tasks 6 Add Bluetooth Device View My Bluetooth services pa View devices in range E View or modify configuration Click on Add a Bluetooth Device on the left window pane c The Bluetooth Setup Wizard window will be displayed Click on the Next button The PC will scan for nearby devices and list all available Bluetooth devices Bluetooth Device Selection Select a device Remote devices must be in Discoverable mode for this computer to find them For assistance in making a remote device discoverable refer to the remote e device s documentation Show all devices IF the device you are looking for is not in the list verify that the device has power and is operational On some devices you must press the Connect button ta make the device discoverable REV 1 TRM 203 AND TRM 403 USER S MANUAL The TRM will be listed as TRM S N where S N is the device s serial number Click on the icon for the TRM and then click on the Next button d The following window will be displayed asking for a secret key to connect to the TRM Bluetooth Security Setup Bluetooth Pairing Paired devices exchange a secret key each time they connect This key is unique for each pair of devices it is used to verify identity and to encrypt the data that the devices exchange To complete the pairing process type the required p
41. en will be displayed f SET LTCAYEEG TU LOWEST TAF POSITION AMY KEY HHEH READS Set the LTC or Voltage Regulator to the lowest position either manually or by pressing and holding the LTC LOWER button Press any key to continue The following warning screen will be displayed ETHAMILC LIL 1 START TO RUM TEST STOR TO ABORT Press the START key to run the test g The following screen will be displayed momentarily PLEASE WAIT REV1 TRM 203 AND TRM 403 USER S MANUAL After the TRM has finished its internal calibration the following screen will be displayed CHAR IHE FLEASE WAIT 1 758 APPS AF PIR EHERDIZED When the TRM has determined that the resistance reading is stable the following screen will be displayed PRESS EHTER kisa DE LTC EAISE LUNER TO START TIMING Press the ENTER key or the LTC RAISE or LOWER key to continue h The following screen will be displayed SWITCH OPERATION 1 LATCHED 2 Press the 1 key LATCHED The TRM will start capturing data and the following screen will be displayed LTL SILF TO EHI TEST EHERDIZED The second line on the screen will display the remaining time for the test While the TRM captures data you can press the LTC RAISE or LOWER button to cycle throug
42. et the tap position Single phase tests are performed in the order shown in Figure 8 while three phase tests are performed in the order shown in Figure 9 the example shown is for an LTC voltage regulator with three lower one neutral and three raise taps Performing tests in this sequence greatly saves time since the transformer does not have to be continually charged before and discharged after testing at each tap position At each tap position the resistance is measured and displayed on the LCD screen Once the reading is stable it can be stored by pressing the ENTER key please see testing instructions that follow The TRM then instructs the user to change to the next tap position and repeat the testing process for that tap After testing the last tap the transformer is discharged and the test results can be printed and saved Once an LTC Voltage regulator test has been started please make sure to finish testing all taps If testing is aborted all test data will be lost WARNING Transformer Charged Test Start Ta 3L Tap 2L Tap 1L Neutral Tap 1R Tap 2R Tap 3R Transformer Dis charged Test Finish Figure 8 Tap Testing Order for a Single Phase REV1 TRM 203 AND TRM 403 USER S MANUAL PHASE A PHASE B PHASE C Transformer Transformer Transformer Charged Dis charged Charged Test Start Tap 3L 21 Tap Neutra Tap 1R Tap 2R Tap 3R Transformer Transformer Transformer Dis charged
43. h the LTC or Voltage Regulator s taps You can wait for the remainder of the test time or you can press the STOP key at any time to end the test If you have OIM n TRM 203 AND TRM 403 USER S MANUAL REV 1 completed cycling through the taps it is recommended to stop the test manually If the test is performed for the duration of 240 seconds the graph printout will be rather long j When the test time has expired or the test is stopped manually the following screen will be displayed PRINTING REPORT PLEASE HALT The test results will be printed on the unit s built in thermal printer A sample test results printout is shown in Figure 12 The following screen will be displayed when printing is finished SAVE THIS RECORD 1 TES 2 Press the 1 key YES to save the test record k The following screen will be displayed RECORD HUMBER 11 HAS EEEH SAVED Press any key to return to the START UP menu REV 1 TRM 203 AND TRM 403 USER S MANUAL COMPANY STATION CIRCUIT Voltage Plot Continued OPERATOR DYNAMIC LTC TEST HZX1 HZXO TESTED AT 10 AMPS Nominal contact transition VOLTAGE PLOT MARKERS AT 1S INTERVALS o P lt u 539 TOU eee Typical open contact transition results in a higher voltage spike TTA compared to nominal LE contact transition 1 1 Figure 12 Typical Dynamic LTC Test Res
44. hile the LTC or Voltage Regulator is switching taps The test will run for 240 seconds to allow the LTC or Voltage Regulator enough time to switch through all of the taps during the test The resistance data is recorded continuously during the test period Use the following steps to perform a Dynamic LTC Test a Start from the START UP menu 1 RUM TEST er 12 12 11 ok TUF TEE zi DIAGHOSTICS Press the 1 key RUN TEST b The following screen will be displayed 1 RESISTANCE TEST 2 RES TEST 3 DYNAMIC LTC TEST 4 DEGAUSS WINDING Press the 3 key DYNAMIC LTC TEST c The following screen will be displayed SELECT FHASE 1 H x3l H x8 PH 2 z Hesz HesB8 B 2 He RS H RE PH C 4 1 CA FH A 5 2 CA PH B HzaAS HAOEZ CA C Select the phase to test by pressing the corresponding numeric key on the keypad For this example we will be testing phase H X1 H XO so press the 1 key TRM 203 AND TRM 403 USER S MANUAL REV 1 d The following screen will be displayed Hobe Po DANGEROUS FLASH OVER HILL IF CABLES ARE DIZCDOHHECTELD This warning reminds the operator that the next sequence of test steps will run current through the test load Press any key to continue e The following scre
45. ing material Continue to step h Press the 3 key WANUALLY ENTER Tk to manually enter the Tk value The following screen will be displayed TO ADJUST TK TO ACCEPT You can increase the Tk value by 0 5 C increments by pressing the A key You can decrease the Tk value by 0 5 C increments by pressing the v key Press the ENTER key to confirm the temperature setting Continue to step h 2 NO Press the 2 key NO if you do NOT wish to convert readings to standard temperature Continue to step j REV1 TRM 203 AND TRM 403 USER S MANUAL h The following screen will be displayed j H L T TEMFE ZE FOC TT TI TO ADJUST TK TO ACCEFT Use the A and PAPER v Contrast keys to adjust the D U T Device Under Test temperature Press the ENTER key to confirm the D U T temperature setting The following screen will be displayed TI TO ADJUST TE TO ACCEPT Use the A and v keys to adjust the reference temperature Press the ENTER key to confirm the reference temperature setting The following warning screen will be displayed sae DANGEROUS FLASH OVER HILL IF CABLES DIZCDOHHECTELD Sefer Sees Seed Defer Defer Seen This warning is a reminder that the next sequence of test steps will run current through the test load Press any key to continue
46. l Specifications Portable transformer winding resistance meter 21 W x 17 H x 9 D 53 cm x 43 cm x 24 cm Weight 35 Ibs 15 8Kg 100 240 Vac 50 60 Hz 1 micro ohm 2000 Ohms TRM 203 1 micro ohm 500 Ohms TRM 403 1 19 999 micro ohms 0 5 reading 1 count 20 999 milliohms 1 reading 1 count 1 2000 Ohms 1 5 reading 1 count 1 20A in 1A increments TRM 203 1 40A in 1A increments TRM403 60Vdc charging 18V DC max during measurement 4 input channels for measuring resistance Back lit LCD Screen 128 x 64 pixels viewable in direct sunlight and low light levels Built in 2 5 wide thermal printer 256 static test records each can contain up to 111 readings and 120 dynamic test records Up to 999 test records on external USB Flash drive RS 232C USB and Bluetooth Designed to meet UL 61010A 1 and Can CSA C22 2 No 1010 1092 standards Operating 10 C to 50 C 15 F to 122 F Storage 30 C to 70 C 22 F to 158 F 90 RH 40 C 104 F non condensing 2000m 6562 ft to full safety specifications Four 50 foot test cables one LTC control cable one ground cable one power cord one USB cable Transportation Case One year on parts and labor REV 1 TRM 203 AND TRM 403 USER S MANUAL 1 3 Controls and Indicators The TRM 203 403 s controls and indicators are shown in Figure 1 The purpose of the controls and indicators may seem obvious but users should
47. layed f Press the START key The following screen will be displayed Press the STOP key to end the test and return to the START UP menu TRM 203 AND TRM 403 USER S MANUAL 3 16 Demagnetizing the Transformer Core You can demagnetize the transformer core using the steps below a Start from the Start Up menu 1 TEST ATAZA 12 m 12 12 11 da SETUP 2 USER Press the 1 key RUN TEST b The following screen will be displayed 1 RESISTANCE TEST 2 SPECIAL RES TEST 2 LTC TEST 4 DEGAUSS WINDING Press the 4 key DEGAUSS WINDING c The following screen will be displayed 1 DELTA 2 WYE WITH NEUTRAL Sa YE 2 4 SIHGLE PHASE For this example we will demagnetize the core of a Wye type with neutral transformer so press the 2 key d The following screen will be displayed TEGAUSS CURRENT 1 0 2 AMF 2 41 3 2 AMPS 4 5 AMPS 5 14 AMPS Select the degaussing current by pressing the corresponding key on the keypad n REV1 TRM 203 AND TRM 403 USER S MANUAL e The following screen will be displayed THIS MAY TAKE SEVERAL MIHUTES TO COMPLETE DEGAUSS 2 PHS TO CONTINUE Press the ENTER key to continue f The degaussing process will start and updates will be displayed on the screen as shown below DEGAUSSING XFMR
48. m 25 0C 77 0F REF TEMP Ts 75 0C 167 0F ALUMINUM WINDINGS Tk 225 0C Qui X1 Phase A X3 Ra Resan x LiTm TK5 COTm TK2 All temps for egn are in deg LITE Phase A A C measured resistance LE Calculated phase resistance at reference temp Calculated phase A winding resistance Calculated phase A winding resistance at reference temperature 1 Ru 499 64 MILLI OHYS Rus 599 57 MILLI OH S I 0 994 AMPS PHASE 3 Re 1 5189 OHMS Rs 1 8227 HS H x3 Rw 1 0193 OHMS Rws 1 2231 OHMS I 0 9 APS Sample test results showing individual winding resistance values fora Wye transformer with no accessible neutral The TRM 203 403 can also calculate the phase resistance and individual winding resistance values at a given reference temperature Rs and Rws respectively Figure 6 Typical Three Phase Wye Transformer with Neutral Resistance Test Results Printout REV1 TRM 203 AND TRM 403 USER S MANUAL 3 11 Performing a Single Phase Resistance Test Follow the steps below to perform a single phase resistance test a Start from the START UP menu T 3112 RUN TEST een ZE TP 250 DTAGHOSTICS Press the 1 key RUN TEST b The following screen will be displayed RESISTANCE TEST 2 SPECIAL RES TEST 2 LTC TES
49. mended that repairs be performed only by Vanguard Instruments Company factory personnel or by an authorized repair service provider Unauthorized modifications can cause safety hazards and will void the manufacturer s warranty WARNING Do not remove test leads during a test Failure to heed this warning can result in electrical shock to personnel and damage to the equipment REV1 TRM 203 AND TRM 403 USER S MANUAL TABLE OF CONTENTS CONVENTIONS USED IN THIS 1 SEM ui s NIS ere 2 1 1 General Description Features siccare a kana pa Yea e qa egeo eR Soho ax Saa ae 1o Sap 2 1 2 Technical Specifications pi best pi 4 L3 TRM Controls ana INdiCatOrS wii tea cuo VERSES U adu SE qU OE 5 2 0 PRETE betje w b tkm iUo i Meo SH MM 6 2 1 Voltages RE 6 22 LCD Screen Contrast COMMON ae e po t EUM 6 23 PAC PAD Cl CO KON ii saji kitan ka oak el tite eae ca nas aa 6 2 4 ERR EIE E ETIN bum at e a kan pei p 6 2 5 Replacing the Thermal Printer 2 2 0 440 6 nns 7 22 OPERATING PROCEDURES 8 3 1 Configuring the LTCA Software for use with the 8 3 2 Con
50. mperature value This useful feature can be used to compare the field readings against the factory test resistance values The TRM 203 403 can perform a special test to collect data automatically for up to 90 minutes at 60 second sampling intervals or 45 minutes at 30 second sampling intervals The test data is recorded with a time stamp All test results can be printed on the unit s built in 2 5 wide thermal printer Test record header information including the company substation name transformer information and operator information can also be entered using the rugged 44 QWERTY style membrane keypad The TRM 203 403 can automatically demagnetize the inductive device under test eliminating the manual task of demagnetizing the transformer core after a resistance test The TRM 203 403 also has a make before break test mode that can be used to test the Load Tap Changer LTC or Voltage Regulator contact test sequence The TRM 203 403 produces a Dynamic Resistance graph of the LTC or Voltage regulator contact under operation An opened contact can be detected visually from this resistance chart The TRM s built in LTC Voltage regulator can be used to conveniently change the LTC voltage regulator tap position from the TRM 203 403 front panel User Interface The TRM 203 403 features a back lit graphic LCD screen 128 x 64 pixels that is clearly visible in both bright sunlight and low light levels A 44 key
51. nce Test Follow the steps below to perform a three phase resistance test we will be testing a Delta type transformer for this example a Start from the START UP menu 1 TEST ES 12 12 11 d nr E F LE Too 2 USER DTAGHOSTICS Press the 1 key RUN TEST b The following screen will be displayed 1 RESISTANCE TEST 2 SPECIAL RES TEST 5 DYNAMIC LTC TEST 4 DEGAUSS WINDING Press the 1 key RESISTANCE TEST c The following screen will be displayed LIG YTO REGULATOR I ES 2 HO Press the 2 key NO d The following screen will be displayed 1 DELTA HYE HELUTEBL 2 5 HYE CHO 2 4 SIHGLE PHASE Select the transformer type by pressing the corresponding numeric key on the keypad 0000000002 0 TRM 203 AND TRM 403 USER S MANUAL REV 1 For this example press the 1 key for a Delta type transformer e The following menu will be displayed 4 20 5 406 m CUSTOM Select the test current by pressing the corresponding numeric key on the keypad Press the 6 key CUSTOM if you would like to enter a custom test current and then enter the current between 1A 40A on the next screen f The following screen will be displayed COMVERT READINGS TU 2 gt TRMDRRD TEMP 1 YES Press the 1 key YES if you wish to convert readings to standard temperature The following screen will be dis
52. nce of test steps will run current through the test load Press any key to continue j The following screen will be displayed SIMG PHS 1 48 AMP TEST START TO FUH TEST STOR TO ABORT Press the START key to run the test k The following screen will be displayed momentarily CALIBEATING PLEASE WAIT After the TRM finishes its internal calibration the following screen will be displayed CHARGING He H1 H KE PLEASE WAIT FMR ENERGIZED This is an informational screen to remind the operator that a test is in progress and shows which phase the test is being performed on The display duration of this message depends on the size of the winding s inductance REV1 TRM 203 AND TRM 403 USER S MANUAL The TRM will then ramp up the current and the screen will be updated accordingly CHARGING H xi Hzx B PLEASE WAIT AMPS ENERGIZED TRM determines when the resistance reading is stable and displays the resistance value on the LCD screen as shown below Re 23 91 AMPS 1 4921 m Press the ENTER key to save the reading The following screen will be displayed AFHE CHART Mio 39 91 AMPS 1 491 mQ SAVED lt FMR ENERGIZED After the reading is saved the TRM will continue to test the resistance and display the readings You may press the ENTER key again to save th
53. necting the to a PC via Bluetooth eene 10 3 3 Typical Connections to a Load Tap Changer 17 3 4 Typical TRM 203 403 Cable 17 3 5 Typical Connections for a Dynamic Resistance 18 2 General oll 19 3 7 Entering Test Record Header 0 2 10 24 4 4444 20 20 Setting the Date and TIME sisi pel piedra 23 3 9 a en ate no 24 3 10 Performing Three Phase Resistance 25 3 11 Performing a Single Phase Resistance 0 0 00 0 0 35 3 12 Performing a Load Tap Changer Voltage Regulator Resistance 42 3 13 Performing a Special Resistance TeSE 2444 bs ana aba kak ttv dad kann aaa kb koka bi Sac 52 3 14 Perrorming a Dynamic LTC T SE ai kis kodak yes ousi eue sushi dak kan aloral bl e eto b ortu LEE law ae kk a aka kn 59 3 15 Performing a Diagnostic 64 3 16 Demagnetizing the Transformer Core 1
54. played 4 Press the 2 key SAVE RECORD LT REV1 TRM 203 AND TRM 403 USER S MANUAL If a USB Flash drive is connected to the unit continue to step d If a USB Flash drive is NOT connected to the unit continue to step e d The following screen will be displayed 1 SAVE IKTEENALLT da SAYE TO THUMB DRIVE 1 SAVE INTERNALLY Press the 1 key SAVE INTERNALLY to save the test record to the unit s Flash EEPROM Continue to step e 2 SAVE TO THUMB DRIVE Press the 2 key SAVE TO THUMB DRIVE to save the test record to the connected USB Flash drive The following screen will be displayed when the test record has been saved REC Bey SAVED TU THUME DRIVE Press any key to return to the START UP menu e test record will be saved to the unit s internal Flash EEPROM and the following screen will be displayed RECORD HUMBER T HAS EEEH SAVED Press any key to return to the START UP menu B n TRM 203 AND TRM 403 USER S MANUAL REV 1 3 17 2 Printing the Contents of the Working Memory Whenever a test is performed and the reading is kept the data is temporarily stored in the TRM s working memory You can print the test reading in the unit s working memory using the steps below a Start from the START UP menu 1 FUH TEST 2 SETUF de 3 USER DIAGNOSTICS Press the 2 key SETUP b The following screen will be displayed 1
55. played HIHDIHG MATERIAL 1 CUFFERE s Th 2 34 da ALUMINUM TEZZ225 5 MANUALLY ENTER Press the 1 key COPPER Tk 234 5 to select copper as the winding material Continue to step g Press the 2 key ALUMINUM Tk 225 0 to select aluminum as the winding material Continue to step g Press the 3 key WANUALLY ENTER Tk to manually enter the Tk value The following screen will be displayed REV 1 TRM 203 AND TRM 403 USER S MANUAL You can increase the Tk value by 0 5 C increments by pressing the A key You can decrease the Tk value by 0 5 C increments by pressing the v key Press the ENTER key to confirm the temperature setting Continue to step g 2 NO Press the 2 key NO if you do NOT wish to convert readings to standard temperature Continue to step i g The following screen will be displayed Use the and v keys to adjust the D U T Device Under Test temperature Press the ENTER key to confirm the D U T temperature setting h The following screen will be displayed Use the and v keys to adjust the reference temperature Press the ENTER key to confirm the reference temperature setting CO ll TRM 203 AND TRM 403 USER S MANUAL REV 1 The following warning screen will be displayed suene DANGEROUS FLASH OVER HILL IF CABLES ARE DIZCDOHHECTELD
56. r The TRM s built in thermal printer uses 2 5 inch wide thermal paper for printing test results To maintain the highest print quality and to avoid paper jams the use of thermal paper supplied by Vanguard Instruments Company is highly recommended Additional paper can be ordered from the following sources Vanguard Instruments Co Inc 1520 S Hellman Avenue Ontario CA 91761 Tel 909 923 9390 Fax 909 923 9391 Part Number VIC TP 3 paper BG Instrument Co 13607 E Trent Avenue Spokane WA 99216 Tel 509 893 9881 Fax 509 893 9803 Part Number VIC TP 3 paper REV 1 TRM 203 AND TRM 403 USER S MANUAL 2 5 Replacing the Thermal Printer Paper The roll of thermal paper is housed inside a dispenser underneath the printer cover To replace the paper follow the steps below e Unscrew the two large printer cover screws and remove the printer cover e Remove the leftover thermal paper roll from the paper holder Unroll the new thermal paper roll Feed the thermal paper into the slot between the paper pocket and the rubber roller The printer will automatically pull the paper under the thermal head e Place the paper roll into the paper holder e Lift the thermal head and align the thermal paper if necessary e Re install the printer cover TRM 203 AND TRM 403 USER S MANUAL REV 1 3 0 OPERATING PROCEDURES 34 Configuring the LTCA Software for use with the The TRM can be used with a PC using the Vanguard LT
57. ress the 3 key SAVE RESTORED RECORD c The following screen will be displayed Press the 4 key ERASE RECORD le If a USB Flash drive is connected continue to step d If a USB Flash drive is NOT connected continue to step e LIN n TRM 203 AND TRM 403 USER S MANUAL d The following screen will be displayed 1 ERASE FEC 2 ERASE THUMB DRY REC 1 ERASE INTERNAL REC Press the 1 key ERASE INTERNAL REC if you would like to erase test records that are stored in the unit s internal Flash EEPROM Continue to step e 2 ERASE THUMB DRV REC Press the 2 key ERASE THUMB DRV REC if you would like to erase test records that are stored on a connected USB Flash drive The following screen will be displayed ERASE RECORD 1 ERASE SIHGLE REEL ERASE ALL RECORDS TU ERIT 1 ERASE SINGLE REC Press the 1 key ERASE SINGLE REC to erase a single record from the USB Flash drive The following screen will be displayed ERASE THUMB DRIVE REC Type the record number that you would like to erase and then press the ENTER key If you do not know the record number you can first print a record directory please see section 3 17 3 The selected record will be erased and the following screen will be displayed REV 1 TRM 203 AND TRM 403 USER S MANUAL Press any key to continue The following screen will be displayed allowing you to continue
58. tance Test Figure 4 Typical Dynamic Resistance Test Connections REV1 TRM 203 AND TRM 403 USER S MANUAL 3 6 General Procedures The main steps for using the TRM are outlined below a Ground the TRM to the substation ground b Plug the TRM power cable into a power outlet c Attach the test cable clamps to the transformer terminals d Turn on the TRM e The unit will self calibrate and then you will be presented with the START UP menu as shown below TRM 203 AND TRM 403 USER S MANUAL REV 1 3 Entering Test Record Header Information You can enter the test record header information before performing tests The record header includes identifying information such as the company station circuit model number etc Once the header information has been entered it will apply to all subsequent test records To enter the header information a Start from the START UP menu SERE TEC 8425 12 1 RUH TEST 11 45 55 2 SETUP 22C TA 5 USER DIAGHOSTICS Press the 2 key SETUP b The following screen will be displayed 1 RECORD ID 2 RECORD 5 SAVE RESTORE RECORD 4 SET TIME LANGUAGE Press the 1 key RECORD ID c The following screen will be displayed COMPANY Tel TO POSITION ENTER TO ACCEPT Type the company name using the keypad REV1 TRM 203 AND TRM 403 USER S MANUAL d The following screen will be displayed Type the
59. ults Printout Showing an Opened Circuit TRM 203 AND TRM 403 USER S MANUAL REV 1 3 15 Performing a Diagnostic Test In diagnostic mode the TRM can run a resistance test display the sense voltages and test current on the TRM This feature can be used to verify the TRM s voltage and current readings against an external meter Use the steps below to perform a diagnostic test a Start from the START UP menu P T m 1z 12 11 LI F FI E Too 5 USER DIAGHOSTILS TES BTzAz1212 1 EUH TEST Press the 3 key USER DIAGNOSTICS b The following screen will be displayed SELECT TEST CURRENT 1 in za cH 5 lU d SHA ta dE Be CLS TOR Select the test current by pressing the corresponding numeric key on the keypad Press the 6 key CUSTOM if you would like to enter a custom test current and then enter the current between 1A 40A on the next screen c The following screen will be displayed SELECT 1 H x1 H B FH A2 da Heme ae CYH PH Bs 2 OTH PH Li 4 H X1 H XX YA PH AD 5 H X2 H M1 YA PH 6 HAKZ HAHZ CO Select the phase to test by pressing the corresponding numeric key on the keypad For this example we will test phase H X1 H XO so press the 1 key REV1 TRM 203 AND TRM 403 USER S MANUAL d The following warning screen will be displayed Press any key to continue e The following screen will be disp
60. window My Bluetooth Places See File Edit View Bluetooth Favorites Tools Help Address My Bluetooth Places Back 2 Search Folders Bluetooth Tasks 6 Add a Bluetooth Device l View My Bluetooth services Connected COM14 gt View devices in range gt View or modify configuration Note the port number listed under the device name In the above case the port number is 14 Use this port number in the LTCA software to connect to the REV1 TRM 203 AND TRM 403 USER S MANUAL For Windows 7 a Make sure the TRM is turned on Then double click on the Bluetooth system tray icon on the bottom right corner of your computer screen 9 52 AM 07 17 2012 File Edit View Tools Help Add a device Add a printer No items match your search 7 Oitems 5 0 items Click on Add a device TRM 203 AND TRM 403 USER S MANUAL REV 1 c All nearby Bluetooth devices will be listed Select a device to add to this computer Windows will continue to look for new devices and display them here TRM 403 68001 Bluetooth Other What if Windows doesn t find my device The TRM will be listed as TRM S N where S N is the device s serial number Click on the icon for the TRM and then click on the Next button d The device pairing screen will be displayed Select a pairing option gt Create a pairing code for me The device has a keypa

TRM-203/403 User`s Manual - Vanguard Instruments Company, Inc.

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