Megger AVTMTTR100 Instruction Manual
  1. Manuals
  2. Brands
  3. Megger Manuals
  4. Test Equipment
  5. AVTMTTR100
  6. Instruction manual

Megger AVTMTTR100 Instruction Manual

Single-phase handheld ttr transformer turn ratio test set
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Instruction Manual AVTMTTR100
Transformer Turn Ratio Test Set
Catalog Nos. TTR100 and TTR100-1
Read the entire manual before operating.
Antes de operar este producto lea este manual enteramente.
for
Single-Phase Handheld TTR
High-Voltage Equipment
Aparato de Alto Voltaje
AVTMTTR100-ENG
Rev. 6
Nov 2015
M
2621 Van Buren Ave
Norristown, PA 19403-2329
610-676-8500
www.megger.com

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the AVTMTTR100 and is the answer not in the manual?

Questions and answers

Related Manuals for Megger AVTMTTR100

Summary of Contents for Megger AVTMTTR100

  • Page 1 AVTMTTR100-ENG Rev. 6 Nov 2015 Instruction Manual AVTMTTR100 Single-Phase Handheld TTR Transformer Turn Ratio Test Set Catalog Nos. TTR100 and TTR100-1 High-Voltage Equipment Read the entire manual before operating. Aparato de Alto Voltaje Antes de operar este producto lea este manual enteramente.
  • Page 3 Single-Phase Handheld TTR Transformer Turn Ratio Test Set Instruction Manual...
  • Page 4 If the product or its individual instrument are used for purposes other than those specified herein, confirmation of their validity and suitability must be obtained from Megger. Refer to the warranty information included at the end of this instruction manual. Specifications are subject to change without notice.

  • Page 5: Table Of Contents

    Quick Test Single Phase Transformer ..............59   Quick Test Three Phase Transformer ..............60   Test T-Type Transformers ..................61   Full Test Single Phase Transformer ................. 62   Full Test Single Phase Tapped Transformer ............63   AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 6 Calibration ........................ 81   TTR100 Test Set Functional Test ................82   Battery Maintenance ....................83   Troubleshooting ....................... 85   Repair ........................86   ................ 87   RDERING NFORMATION AND PARE ARTS ..........................91   ARRANTY AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 7 Figure 6-11.  SYSTEM SETUP Screen 2 ..................... 68  Figure 6-12.  SAVED READINGS Screen .................... 69  Figure 6-13a. Sample Test Report Header .................... 74  Figure 6-13b. Sample Single Phase Test Report .................. 74  Figure 6-14.  Report Printout ........................ 79  AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 8 Self-test Error Messages ....................71  Table 6-2.   Test Error Messages ....................... 72  Table 6-3.   Test Result Error Messages .................... 73  Table 6-4.   Miscellaneous Messages ....................73  Table 7-1.  Troubleshooting Guide ....................85  AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 9: Introduction

    Telephone 610-676-8500. Examine the instrument for damage received in transit. If any damage is discovered, file a claim with the carrier at once and notify Megger or its nearest authorized sales representative, giving a detailed description of the damage. This instrument has been thoroughly tested and inspected to meet rigid specifications before being shipped.
  • Page 10 Quick test mode provides the fastest testing of a transformer.  Two auto selected excitation test voltages: 8 V, and 1.5 V.  Testing to ANSI, IEC, or Australian standards.  Leads marked to ANSI, IEC, and Australian standards.  Choice of six languages. AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 11 INTRODUCTION  Large, easy-to-read LCD shows alphanumeric data  Meets the requirements of both the European EMC and Low Voltage Directives.  Trouble-free operation in switchyards under electrostatic and magnetic interference conditions. AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 12 AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 13: Safety

    The power input plug must 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 the receptacle is properly wired before inserting the plug. AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 14 Any repair or component replacement must be performed by qualified service personnel. Megger has made formal safety reviews of the initial design and any subsequent changes. This procedure is followed for all new products and covers areas in addition to those included in applicable standards. Regardless of these efforts, it is not possible to eliminate all hazards from electrical test equipment.
  • Page 15 Megger considers this an excellent safety practice. Users of equipment should note that high-voltage discharges and other sources of strong electric or magnetic field may interfere with the proper functioning of heart pacemakers.
  • Page 16 AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 17: Specifications

    2 test voltages, auto selectable: 8V rms for testing distribution or power transformers and PTs; 1.5V rms or 8V rms for testing CTs. Current: up to 100 mA, 4 digit resolution Test Frequency 55Hz, internally generated providing a universal 50 / 60 Hz test set. AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 18 DC Winding Resistance: ±(10% of reading ± 1 digit) (10 to 2000 Ohms range) ±(10% of reading ±1 mOhm) (10 mOhm to 9.99 Ohms range) ±(10% of reading ±0.5 mOhm) (0.10 mOhm to 9.99 mOhms range) AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 19: Environmental Conditions

    0 to 95% noncondensing (storage) Physical Data Dimensions: 9.5 x 4.5 x 1.875 in. (241 x 115 x 48 mm) (H x W x D) Weight (test set): 3.3 lb. (1.5 kg) instrument only, without leads AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 20 AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 21: Description

    KEYPAD 16-button keypad for entering menu selections and navigating through the various screens. In addition to alpha-numeric keys, AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 22: Figure 4-1 Single-Phase Ttr Display & Control Panel

    NOTE: the asterisk button is used to return to the Main Menu screen from any other screen. Display Screen CONTRAST Back Light switch Power OFF switch Power ON switch Keypad Figure 4-1 Single-Phase TTR Display & Control Panel AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 23: Figure 4-2. Top Side Connector Panel

    Connecting the universal charger will charge the battery pack. CAUTION Do not connect charger if battery is disconnected or removed from unit. RS232/PRINTER A DB-9 male connector for connecting a printer or connecting the TTR100 to a PC. AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 24 AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 25: Setup And Connections

    1. The H test leads of the test set are the exciting leads. The TTR100 will utilize the 8 or 1.5V test voltage level when testing CTs, and it will automatically switch between the indicated voltages. All other transformers will be tested at 8 V. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 26: Single-Phase, Two-Winding Transformers

    When testing full secondary winding (X1 – X3), connect X1 lead to X1 terminal, connect X2 lead to X3 terminal (X3 lead is not used in such test, and it should be kept clear of ground and other terminals). Remove the ground connection to X2 terminal. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 27: Figure 5-1. Setup For Testing Single-Phase Transformer

    Polarity of the transformer is displayed for the connections shown. GROUND LEAD Figure 5-1. Setup for Testing Single-Phase Transformer GROUND LEAD Figure 5-2. Setup for Testing Single-Phase Autotransformer AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 28: Figure 5-3. Setup For Testing Single-Phase, Type A (Straight Design) Step Voltage Regulator

    GROUND LEAD Figure 5-3. Setup for Testing Single-Phase, Type A (Straight Design) Step Voltage Regulator GROUND LEAD Figure 5-4. Setup for Testing Single-Phase, Type B (Inverted Design) Step Voltage Regulator AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 29: Current Transformers (Cts)

    The test can be performed without removal of the BCT from the equipment. Connect the TTR100 to BCT as shown in Figure 5-7. NOTE: A jumper lead is not supplied with the TTR100. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 30: Figure 5-5. Setup For Testing Unmounted Current Transformer

    H1 LEAD H2 LEAD X2 LEAD BUS OR USE HEAVY GAUGE LEAD WIRE X1 LEAD Figure 5-5. Setup for Testing Unmounted Current Transformer TTR 100 Figure 5-6. Setup for Testing Taps on Multiple Tap CT AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 31: Figure 5-7. Setup For Testing Bct Mounted On Single-Phase Two-Winding Transformer

    SETUP AND CONNECTIONS Figure 5-7. Setup for Testing BCT Mounted on Single-Phase Two-Winding Transformer. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 32: T-Type Transformers

    / terminals of the device being tested. Any connection(s) to ground/case of T-type transformer on H or X side should be removed before testing a transformer. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 33: Connections And Vector Voltage Diagrams

    For the ANSI specification, the rated voltage on the high-voltage winding is represented by V represents rated voltage on the low-voltage winding. AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 34 Nameplate voltage rating (line-to-line) of HV transformer winding. Nameplate voltage rating (line-to-line) of LV transformer winding. A, B, C Winding tested on HV side of transformer. a, b, c Winding tested on LV side of transformer. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 35: Table 5-2. Ansi Transformer Winding Phase Relationship

    By TTR Winding Winding Turn Ratio Remarks Single-phase transformer 1ph0 Single-phase transformer 1ph6 Neutral Dyn1 accessible • 3 on wye winding Neutral • 3 Dyn7 accessible on wye winding Neutral YNyn0 accessible both wye windings AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 36 – X wye winding Neutral accessible • 3 Dyn5 on wye winding -( H – X accessible • 3 – H -( H – X neutral on – H -( H – X wye winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 37 Neutral • 3 Dyn11 accessible on wye winding accessible • 3 Dy11 neutral on wye winding accessible neutral accessible neutral – X accessible YNy0 – X neutral on – X low-voltage winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 38 YNy6 neutral on low-voltage winding accessible Yyn6 neutral on high-voltage winding accessible neutral on both wye windings accessible • 3 Yzn1 neutral on wye winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 39 Turn Ratio Remarks • accessible neutral accessible • 3 Yzn5 neutral on wye winding • accessible neutral accessible • 3 Yzn7 neutral on wye winding • accessible neutral accessible • 3 Yzn11 neutral on wye winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 40 Turn Ratio Remarks • Yz11 accessible neutral accessible ZNy5 neutral on • 3 wye winding • accessible neutral accessible ZNy11 neutral on • 3 wye winding • Zy11 accessible neutral accessible • neutral on wye winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 41 • 3 winding accessible • neutral on wye winding accessible • neutral on wye winding Neutral YNd11 – X accessible • 3 – X on wye winding accessible • Yd11 neutral on wye winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 42 • winding -( H – X accessible • 3 – H -( H – X neutral on – H -( H – X wye winding Neutral accessible • 3 YNzn1 on wye winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 43 YNd9 • on wye winding • accessible neutral on wye winding accessible • neutral on wye winding YNyn2 Neutral – X accessible – X both wye – X windings YNyn8 Neutral accessible both wye windings AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 44 External neutral terminal on LV transformer winding (alternate notation n). Inaccessible neutral point on HV or LV transformer winding. Nameplate voltage rating (line-to-line) of HV transformer winding. Nameplate voltage rating (line-to-line) of LV transformer winding. U, V, W Phase tested. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 45: Table 5-3. Cei/Iec 76-1:2011 Transformer Winding Phase Relationship

    1V-1W 2V-2W 1W-1U 2W-2U 1U-1V 2W-2V 1V-1W 2U-2W 1W-1U 2V-2U 1U-1V 2W-2U 1V-1W 2U-2V 1W-1U 2V-2W 1U-1V 2V-2U 1V-1W 2W-2V 1W-1U 2U-2W 1U-1V 2V-2W 1V-1W 2W-2U 1W-1U 2U-2V 1U-1V 2U-2W Dd10 1V-1W 2V-2U 1W-1U 2W-2V AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 46 1W-1U 2U-2W winding Neutral 1U-1V 2V-2N accessible • 3 Dyn7 1V-1W 2W-2N on wye 1W-1U 2U-2N winding DH1109 No neutral 1V-1W 1U-1V 2V-2W accessible • 3 1W-1U 1V-1W 2W-2U on wye 1U-1V 1W-1U 2U-2V winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 47 1V-1W 2V-2W on zigzag 1W-1U 2W-2U winding Neutral 1V-1W 1U-(1V+1W) 2N-2V accessible 1.5U1 Dzn2 1W-1U 1V-(1W+1U) 2N-2W on zigzag 1U-1V 1W-(1U+1V) 2N-2U winding 1U-1V 2W-2V No neutral 1V-1W 2U-2W accessible 1W-1U 2V-2U on zigzag winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 48 1V-1W 2W-2V on zigzag 1W-1U 2U-2W winding Neutral 1V-1W 1U-(1V+1W) 2V-2N accessible 1.5U1 Dzn8 1W-1U 1V-(1W+1U) 2W-2N on zigzag 1U-1V 1W-(1U+1V) 2U-2N winding No neutral 1U-1V 2V-2W accessible 1V-1W 2W-2U on zigzag 1W-1U 2U-2V winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 49 1V-1N 2V-2W on LV 1U-1N 1W-1N 2W-2U winding No neutral 1U-1V 2U-2V accessible Yyn0 1V-1W 2V-2W on HV 1W-1U 2W-2U winding No neutral 1U-1V 2U-2V accessible 1V-1W 2V-2W on HV & LV 1W-1U 2W-2U windings AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 50 With or 1U-1V 2N-2V without • Yzn1 1V-1W 2N-2W accessible 1W-1U 2N-2U neutral on wye winding No neutral 1V-1W 1U-(1V+1W) 2U-2V accessible • 1W-1U 1V-(1W+1U) 2V-2W on HV & LV 1U-1V 1W-(1U+1V) 2W-2U winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 51 With or 1U-1V 2U-2N without • Yzn11 1V-1W 2V-2N accessible 1W-1U 2W-2N neutral on wye winding No neutral 1V-1W 1U-(1V+1W) 2U-2W accessible • Yz11 1W-1U 1V-(1W+1U) 2V-2U on HV & LV 1U-1V 1W-(1U+1V) 2W-2V windings AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 52 1W-(1U+1V) 2V-2W on wye • winding 1U-1N 2V-2U Neutral YNd7 1V-1N 2W-2V accessible 1W-1N 2U-2W on wye • winding 1V-1W 1U-(1V+1W) 2V-2U No neutral 1W-1U 1V-(1W+1U) 2W-2V accessible 1U-1V 1W-(1U+1V) 2U-2W on wye • winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 53 Winding Winding Turn Ratio Remarks 1U-1N 2U-2W Neutral YNd11 1V-1N 2V-2U accessible 1W-1N 2W-2V on wye • winding 1V-1W 1U-(1V+1W) 2U-2W No neutral Yd11 1W-1U 1V-(1W+1U) 2V-2U accessible 1U-1V 1W-(1U+1V) 2W-2V on wye • winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 54 Nameplate voltage rating (line-to-line) of HV transformer winding. Nameplate voltage rating (line-to-line) of LV transformer winding. A, B, C Winding tested on HV side of transformer. a, b, c Winding tested on LV side of transformer. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 55: Table 5-4. Transformer Winding Phase Relationship (Australian Std. 2374, Part 4 - 2003)

    1ph6 n - b Neutral • 3 Dyn1 n - c accessible n - a on wye winding No neutral • 3 accessible on wye winding Neutral • 3 Dyn11 accessible on wye winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 56 C+B+C+A C2 - A2 a3 - c3 winding Neutral A2 - N a2 - n accessible YNyn0 B2 - N b2 - n on HV & LV C2 - N c2 - n windings AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 57 LV A2 - N C2 - N a1- c1 winding No neutral A2 - B2 b1 - a1 accessible Yyn6 B2 - C2 c1 - b1 on HV C2 - A2 a1 - c1 winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 58 - (C on HV & LV - (A windings Neutral A2 - N a2 - b2 accessible YNd1 B2 - N b2 - c2 on wye LV • 3 C2 - N c2 - a2 winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 59 Neutral B4 - C4 A4 - N b1 - a1 accessible ZNd6 C4 - A4 B4 - N c1 - b1 on zigzag 1.5 LV A4 - B4 C4 - N a1 - c1 winding AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 60 C4 -(A4+B4) c2 - b2 windings Neutral A4 - N a2 - c2 accessible ZNyn11 B4 - N b2 - a2 LV • 3 on HV & LV C4 - N c2 - b2 windings AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 61: Operation

    The TTR test set menus and test screens are operated by using the keypad. On power up, the test set performs a self-test check, and all hardware and software variables are initialized. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 62: Figure 6-1. Opening Display Screen

    If no errors are detected, the screen showing a battery charge level, in % of full charge, is displayed for 3 sec. Depending on battery charge level, the “DO NOT CHARGE BATTERY!” or “CHARGE BATTERY!” message follows the battery charge level message. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 63: Figure 6-2. Main Menu Screen

    6. SAVED READINGS: Allows viewing, deleting, printing or uploading to PC up to 200 saved test results. The number of saved readings is displayed after colon mark. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 64: Figure 6-3. Transformer Configuration Screen

    Figure 6-2, with the selected transformer configuration / type is displayed. By selecting #3, various “T” type transformer configurations will be displayed on the screen. For example: T-T0, T-T30 Lag or T-T30 Lead. Refer to Figure 6-6. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 65: Figure 6-4. Single Phase Transformer Configuration Screen

    (when 6. MORE is selected on the screen shown in Figure 6-4) H-Xc transformer configuration contains H and X winding terminals tied together inside a transformer can. There is one common H2, X2 terminal on a transformer can. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 66: Figure 6-5. Three Phase Transformer Configuration Screen

    OR: * - MAIN MENU, - BACK Figure 6-6. T - Type Transformer Configuration Screen Having selected the transformer type to test, return to the Main Menu screen and select type of test to perform; Quick or Full test. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 67: Quick Test Single Phase Transformer

    HEADER from this screen or return to TEST RESULT 2 screen. From the TEST RESULT 2 screen, one can also select the following by pressing the appropriate number: Print the test result (on an optional printer) by selecting AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 68: Quick Test Three Phase Transformer

    HEADER information, PRINT header and the test results, STORE the test results, continue with the NEXT TEST if testing a tapped transformer, or return to either the previous TEST RESULT screen or to the MAIN MENU. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 69: Test T-Type Transformers

    Selecting CONTINUE at the conclusion of the Phase B test, one can provide HEADER information, PRINT header and the test results, STORE the test results, or return to either the previous TEST RESULT screen or to the MAIN MENU. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 70: Full Test Single Phase Transformer

    Stop message is displayed on the lower portion of the screen. “PRESS ANY KEYS TO STOP TEST.” At the completion of the test, TEST RESULT 1 screen is displayed containing the test number, the ID number, the calculated turns ratio, measured turns ratio, AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 71: Full Test Single Phase Tapped Transformer

    To test other taps, select 5 "Next Test" on TEST RESULT 2 screen. Additional TEST SETUP screens will be displayed. Select 2, and enter the number of the tap to be tested, followed by 3. Start Test. Continue this process until all of the taps have been tested. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 72: Full Test Cts

    Also, from this screen the HEADER information can be entered and then printed, test results PRINTED or STORED, device RE-TESTED, or return to the TEST RESULT 1 screen or MAIN MENU. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 73: Test Result Symbols

    A, B and C, respectively. RXA, RXB, RXC Secondary winding resistance of three phase transformer for phase A, B and C, respectively. ‘, O, ^ Phase angle (displacement) in minutes, degrees, or centiradians, respectively AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 74: Custom Configurations

    CUSTOM CONFIGURATIONS can be saved when conducting a FULL TEST on devices. If transformer ID number and transformer configuration exceeds 18 characters, the transformer configuration is NOT displayed on the CUSTOM CONFIGURATION screen. Only the transformer ID will be displayed. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 75: System Setup

    ENTER key. 5. MORE: Selecting 4, an additional SYSTEM SETUP screen is displayed, Refer to Figure 6-11. 6. MAIN MENU: Selecting 6 or asterisk will return one to the MAIN MENU screen. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 76: Figure 6-11.  System Setup Screen 2

    Adjust as necessary with the use of the scroll keys, and select by depressing the ENTER key. 4. PREVIOUS MENU: SELECTING 4 will return one to the SYSTEM SETUP screen 1. 5. Selecting 5 will return one to the MAIN MENU screen. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 77: Figure 6-12. Saved Readings Screen

    Prompt lines will be displayed at the bottom of the screen. If all saved readings are to be deleted, enter 0; if a specific test result is to be deleted enter the associated test number and AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 78 In all cases, a message will be flashed at the bottom of the screen indicating that TRANSFER is completed. 5. MAIN MENU: This selection will return one to the MAIN MENU. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 79: Error Messages

    Serial EEPROM can’t be written to or read from. Contact the factory for repair. ONEWIRE FAILED There was an error trying to connect to both the temperature sensor and the real time clock. Contact the factory for repair. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 80: Table 6-2. Test Error Messages

    Temperature sensor and the real time clock interface failed. Contact the factory for repair. ADC FAILED A/D converter failed. Contact the factory for repair. ADC TIMEOUT A/D converters didn’t respond. Contact the factory for repair. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 81: Table 6-3. Test Result Error Messages

    Open connections, wrong connections, open windings, shorted windings, high resistance windings, other abnormal transformer problems, or a combination of these may cause a large deviation from normal turn ratio or indicate an unusual AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 82: Use With The Optional Printer

    TYPE: SINGLE PHASE TRANSFORMER 1ph0 TAPS TESTED: 3 – 17 H VOLTAGE: 10000 X VOLTAGE: 10000 CALCULATED TURNS RATIO: 1.0000 TEST VOLTAGE: 8V RATIO 1.0013 % DEVIATION 0.13 PHASE(min) -14.7 Iexc(ma) 0.03 Figure 6-13b. Sample Single Phase Test Report AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 83: Using Comlink Program

    File menu, type the full name of the file (for example, D:\Setup.exe), press the Enter key and follow the prompts.  COMLINK is a 32-bit program and Win 3.1 won’t handle it. Windows NT, Windows XP, Windows 95, and MS ACCESS are registered trademark of Microsoft Inc. AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 84 To transfer data to a PC, log to the disk drive and/or directory that contains the COMLink program and select it. Connect the TTR's RS232 port to the PC through a cable (Megger p/n 33147-18) supplied. If the USB port is used, plug a USB serial adapter, USA-19QW or equivalent, into the USB port of the PC.
  • Page 85 The uploaded data is automatically saved to a default “C” drive COMLink directory, or to a previously selected directory as a “.txt” file using the name which appears in the “Test data file name” box. AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 86 To select the transformer test report to be printed: 1. Click the left mouse button and drag the mouse to highlight a group of tests 2. Press and hold “Control” then clicking the left mouse button to highlight multiple tests AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 87: Figure 6-14. Report Printout

    OPERATION 3. Then, press print button. Figure 6-14. Report Printout AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 88 Viewing Test Results from the Database To view the reading from the PC database: From the COMLink Main Menu: 1. Select the Login tab. 2. Press "View Readings form PCDB". 3. Select transformer's test results. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 89: Service

    As a result of such calibration procedure, each TTR100 test set may be NIST certified. To check a TTR100 calibration, at a customer site or in the field, the Megger Calibration Standard Cat. No. 550050 or equivalent standard should be used. To perform a quick simplified calibration check, the Megger Calibration Checkbox Standard Cat.

  • Page 90: Ttr100 Test Set Functional Test

    Keep X3 lead clear of ground and test setup. 5. When the main menu appears, select 2. START QUICK TEST. 6. Turn Ratio reading on the test result screen should be from 0.9980 to 1.0020. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 91: Battery Maintenance

    It is safe to charge the battery overnight. The next day the charge indicator LED may not indicate that the charge is complete but the charge will likely be ≥90%.  You may check the battery charge by turning on the instrument and observing the battery capacity. AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 92 However, failure to satisfy conditions concerning charging, discharging, temperature, and other factors during actual use can lead to shortened life (or cycle life) damage to products and deterioration in performance due to leakage and shortened service life. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 93: Troubleshooting

     Incorrect connection of leads.  Incorrect marking of a transformer.  Printer power not turned on.  Printer battery discharged. Cannot obtain printout when printer is connected.  Problem in TTR100 printer interface electronics. AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 94: Repair

    Repair Megger offers a complete repair and calibration service and recommends that its customers take advantage of this service in the event of equipment malfunction. Contact your Megger representative for instructions and a return authorization (RA) number. Equipment returned for repair should be shipped prepaid and insured and marked for the attention of the Repair Department.

  • Page 95: Ordering Information And Spare Parts List

    Power Cable for Battery Charger Determined by Country Protective neoprene carrying case and accessory pouch 55-2008 Software for uploading test results to as PC (COMLink) 35794-2 Quickstart Guide 55-2013 Instruction Manual AVTMTTR100-XXX (XXX = language code) AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 96 60 Hz (Non –CE marked) Test Leads X winding, 20 ft (6.1 m) 2007-714-20 H winding, 20 ft (6.1 m) 2007-716-20 X winding, 33 ft (10.06 m) 2007-714-33 H winding, 33 ft (10.06 m) 2007-716-33 USB Serial Adapter 35871 AVTMTTR100-ENG Rev 6 Nov 2015...
  • Page 97 35753 Universal battery charger 35757 All cables listed below for TTR100-1. For TTR100 lead sets, consult your local sales rep or Megger Valley Forge factory. Cable, H winding, 6 ft (1.8 m) 2007-716-6 Cable, X winding, 6 ft (1.8 m) 2007-714-6 Cable, H winding, 12 ft (3.6 m)
  • Page 98 AVTMTTR100-ENG Rev 6 Nov 2015...

  • Page 99: Warranty

    WARRANTY Products supplied by Megger are warranted against defects in material and workmanship for a period of one year following shipment. Our liability is specifically limited to replacing or repairing, at our option, defective equipment. Equipment returned to the factory must be shipped prepaid and insured. This warranty does not include batteries, lamps, or other expendable items, where the original manufacturer's warranty shall apply.
  • Page 100 AVTMTTR100-ENG Rev 6 Nov 2015...

This manual is also suitable for:

Tt100Ttr100-1

Table of Contents