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Summary of Contents for Megger TTRU1
- Page 1 TTRU1 Handheld transformer turns ratiometer User Guide...
- Page 2 Megger. Refer to the warranty information below. Specifications are subject to change without notice. WARRANTY Products supplied by Megger are warranted against defects in material and workmanship for a period of 1 years following shipment. The warranty is void in the event of abuse (failure to follow recommended operating procedures) or failure by the customer to perform specific maintenance as indicated in this manual.
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Page 3: Table Of Contents
Measurements & Limits ........................36 Regional ..............................38 Display / Battery ..........................38 Edit Vector List ............................. 40 Factory Reset Settings ......................... 42 Info ................................ 43 PowerDB Import ........................... 44 Service ..............................45 Troubleshooting ........................... 45 Maintenance ............................46 Calibration Repairs www.megger.com... -
Page 4: Introduction
If you find any discrepancies in the TTRU1 manual or have any comments, please send them to Megger via fax, e-mail, or phone. -
Page 5: Items Received
Items received Items received TTRU1 Models Part Number Description Image TTRU1-BASIC 37.5 VAC induced handheld turns ratiometer test set TTRU1-ADV 62.5 VAC induced handheld turns ratiometer and go / no go impedance test set with customizable vector lists, guided three phase tests, and PowerDB import... - Page 6 Items received TTRU1 Leads Part Number Description Image 1015-031 2 m (6 ft) H and X leads 1015-032 3 m (9 ft) H and X leads 1015-033 6 m (18 ft) H and X leads 1015-035 9 m (33 ft) H and X leads...
- Page 7 Part Number Description Image 90012-878 USB Drive Optional hardware accessories Part Number Description Image TTRU1-CAL-CERT TTRU1 Calibration Certificate 2012-180 Backpack lead bag 90041-006 USB NiMH battery charger 90029-573 USB Printer 90029-573-P USB Printer Paper (x48 rolls) TRS1-PLUS TRS1+ Calibration Standard...
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Page 8: Warning And Safety Precautions
Instruction Manual prior to operating the equipment. GENERAL SAFETY PRECAUTIONS The TTRU1 and the Unit Under Test (UUT) should both be considered as sources of instantaneously lethal levels of electrical energy. Observe the following safety precautions Observe all safety warnings on the TTRU1. - Page 9 Only use NiMH and Alkaline AA batteries.Do not mix NiMH/Alkaline batteries. Do not use non-rechargeable batteries when the battery setting is set to NiMH. CAUTION! Do not attempt to run tests while the TTRU1 is charging or connected to a PC. www.megger.com...
- Page 10 Ingress IP54 Relative humidity 0-90 %, non-condensing Transformer testing standards IEEE C57.152-2013 60076-1:2011 AS/NZS 6076 1:2014 CIGRE 445 2011 GOST 3484.1-88 Dimensions 22.8 x 10.5 x 7.5 cm 8.98 x 4.1 x 2.95 in Weight 1 kg 2.2 lbs www.megger.com...
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Page 11: Technical Specifications
1.0 mA, 101 mA – 1000 mA Excitation current accuracy ±1 % Reading, ±0.1 mA Frequency accuracy ±1 % Reading, ±0.1 Hz Phase range 0 – 360 ° Phase accuracy ±0.05 ° Max voltage output 45 V AC peak www.megger.com... -
Page 12: Connections And Controls
USB-A Indicator Start/Stop Test Control Power On/Off X1 | 2U | a X2 | 2V | b Test Mode Selector NOTE : TTRU1-EXP model shown. Test Mode selector and PC Data Download will vary by model. Quick Start Guide www.megger.com... -
Page 13: Pc Software Installation
1. Locate the TTRU1 PC software installer a. From the TTRU1 I Connect the TTRU1 to a PC with the included USB cable II Turn on the TTRU1 III After initialization, a CD drive will appear on the PC which contains the software IV Locate the file named TTRU1_installer_X.xxx.exe. - Page 14 PC Software Installation 5. Review the license agreement and click I Agree 6. Choose components and select Next. Defaults recommended. 7. Select Install Location and click Install. Defaults recommended. www.megger.com...
- Page 15 PC Software Installation 8. Click Finish to complete the install. www.megger.com...
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Page 16: Pc Software Update
PC Software Update PC Software Update When updating to a new version of the TTRU1 software, the installer will remove the installed version of software. 1. Locate the updated TTRU1 PC software installer a. From the TTRU1 I Connect the TTRU1 to a PC with the included USB cable... - Page 17 PC Software Update 5. Click Next on the uninstall TTRU1 software screen 6. Click Uninstall www.megger.com...
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Page 18: Powerdb Installation
PC Software Update 7. Click Finish 8. Proceed with the installation instructions from PC Software Installation PowerDB Installation PowerDB can import TTRU1 data. To install PowerDB, download the latest version from www.powerdb.com. Follow the instructions on screen to install PowerDB. www.megger.com... -
Page 19: Initialization
Initialization and Power Off Initialization and Power Off Press the power button to turn on the TTRU1. After turning on the TTRU1, the Megger logo will display, followed by the screen corresponding to the rotary knob position. Press the power button to put the TTRU1 into sleep mode. While in sleep mode, the power button can be pressed again and the TTRU1 will immediately turn back on. -
Page 20: Rotary Knob Functions
Rotary Knob Functions Rotary Knob Functions The rotary knob is used to select different functions of the TTRU1. Move the rotary knob to the left or right to select the desired function. Some functions may have more than one rotary knob position. -
Page 21: Buttons
Buttons Buttons The 8 buttons shown below are the primary controls for the TTRU1. The four rectangle buttons will be mapped to functions displayed on screen directly above the buttons. The enter, delete, and save buttons will have different functions based on the screen displayed. The play button will start and stop tests when the rotary button is set to TTR, Go/No Go (ADV and PRO models), and Impedance testing (EXP model). -
Page 22: Ttr
The differences are shown below. TTRU1 BASIC TTR Screen TTRU1 ADV, PRO, and EXP TTR Screen TTRU1 BASIC Test Setup Press the enter key to select the maximum test voltage from the following options: 1 V, 4 V, 8V, 16 V, 32 V, or 50V. - Page 23 Press the SECONDARY button to cycle through secondary Amp selections With PT selected, press the PRIMARY button to set the primary winding voltage. Press the SECONDARY button to set the winding, connection, and L-L voltage for the secondary winding. www.megger.com...
- Page 24 Press the Play button to start a test. If a TEST ID was not entered when the PLAY button was pressed, the TTRU1 will ask the user if they would like to enter a test ID. Click the buttons below the green check mark to use the default TEST ID. Click the buttons under the red cross and the TEST ID entry screen will be displayed.
- Page 25 Connect the USB Printer to the TTRU1 and select the PRINT button to print the results. Press the enter button to return to the TTR Test Setup screen. The TEST ID will automatically increment to facilitate data grouping.
- Page 26 TTRU1 ADV TTR Test Setup The operation of the TTRU1 ADV is comparable to the TTRU1 BASIC. Key changes are highlighted below. Clicking the SAVE button will save the vector, primary, and secondary winding information as a custom vector based on the TEST ID.
- Page 27 A single phase vector that has multiple secondary connections have the connections options limited to those available. For example, 1Ø TX 1Ph0 #2 has two secondary connections: X1-X2, and X1-X3. When configuring the secondary voltage, the options to select will be X1-X3, X1-2, and N/A. www.megger.com...
- Page 28 TTRU1 PRO TTR Test Setup The operation of the TTRU1 PRO is comparable to the TTRU1 ADV. Key changes are highlighted below. Press the enter key to select the maximum test voltage from the following options: 1 V, 4 V, 8V, 16 V, 32 V, 50 V, 80 V, or 125 V.
- Page 29 TTR Screen TTRU1 PRO TTR Results In place of additive/subtractive phase deviation, the results screen of the TTRU1 PRO shows phase deviation. This is a more accurate representation of the relationship between the primary and secondary winding. When testing three phase vectors, using the enter button to return to the test setup and then pressing play will highlight the next phase to be tested, guiding the customer through all three phases of tests.
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Page 30: Go / No Go Impedance
TTR Screen TTRU1 ADV and PRO Go/No Go Impedance Test Setup The Go/No Go impedance test of the TTRU1 is very similar for the ADV and PRO units. The only difference being the maximum test voltage allowed. The vector select options, including custom vectors, are the same as the TTR Test Setup. Please refer to the previous sections for selecting vectors. - Page 31 TTR Screen TTRU1 ADV and PRO Go/No Go Impedance Test Results When testing is complete, the TTRU1 will report pass or fail for open circuits, short circuits, and inductance tests for each winding. Open circuit ensures continuity through a winding.
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Page 32: Short Circuit Impedance
TTR Screen TTRU1 EXP Short Circuit Impedance / Leakage Reactance Test Setup The short circuit impedance / leakage reactance test is only available in the TTRU1 EXP. As with TTR, pressing enter will change the maximum test voltage. Pressing the KVA and Z% button enables entry of KVA/MVA and impedance % values. These values will be used to evaluate the results of the impedance test. - Page 33 Click and hold the enter button for three seconds to view additional test information, including measured impedance, reactance, inductance, power factor, and AC resistance, and test voltage and current. Press enter to return to the test setup. If testing three phase transformers, the TTRU1 will guide testing to the next phase.
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Page 34: Results
TTRU1 PRO and EXP Results All Results Saved results can be viewed on the TTRU1 PRO and EXP models only. Test results are listed with a test number, Test ID, Date of test, Result type (Ratio, Go/No Go, or Z%), and % error. % error will be blank if primary or secondary information was not saved with the result. - Page 35 Press the play button to load the test setup for TTR and Impedance testing. After pressing the play button, the TTRU1 will instruct the user to choose the appropriate rotary knob position. Once the rotary knob is set to the correct position, the test setup will load on the display.
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Page 36: Settings
Press the up and down arrow to select a setting to change Press the left and right arrow to adjust the selected setting Available settings in Measurement and Limits Max Test Voltage Options „ ƒ TTRU1 BASIC ƒ 1, 8, 30 www.megger.com... - Page 37 „ Ratio Display ƒ TTR, TNR Ratio Evaluation „ % Error, Pass/Fail ƒ Phase Dev Limit (TTRU1 PRO, TTRU1 EXP) „ ƒ 0.5°, 1.0°, 5.0° „ Winding Temp (TTRU1 EXP) 0°C to 85 °C, 1°C increment ƒ Correct to Temp (TTRU1 EXP) „...
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Page 38: Regional
12H, 24H „ Time Adjust hours, minutes, and AM/PM using up, down, left, and right buttons. Press discard to return to the ƒ regional settings without saving changes. Press save to return to the regional settings with saving changes. www.megger.com... -
Page 39: Display / Battery
Press the left and right arrow to adjust the selected setting Press the edit button to adjust date and time settings Available settings in Display / Battery „ Auto Off ƒ 60s, 120s, 300s, 20 minutes Screen Brightness „ 1,2,3,4,5,6,7 ƒ Battery „ ƒ Alkaline, NiMH www.megger.com... -
Page 40: Edit Vector List
TTRU1 ADV, PRO, and EXP Vector List TTRU1 ADV, PRO, and EXP Vector List The vector list is unavailable in the TTRU1 BASIC model. Press the up and down arrows to change vectors Press the Hide button to hide the selected vector from the display list in TTR or Impedance testing... - Page 41 TTRU1 PRO and EXP Custom Nameplates TTRU1 PRO and EXP Custom Nameplates With a custom vector selected, press the edit button to enter complete nameplate information. Press the up and down arrows to select a nameplate field to edit. Nameplate fields available to edit: Test ID „...
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Page 42: Factory Reset Settings
Factory Reset Settings Factory Reset Settings Choose to confirm or cancel after selecting factory reset settings. www.megger.com... -
Page 43: Info
Press the warning button to view the warnings Press the Export Data button to export results and logs Press the update button to update the TTRU1 from a USB thumb drive. Press the self check button to perform a self check. -
Page 44: Powerdb Import
PowerDB Import PowerDB Import The combined 3Ø form can be used to import TTRU1 data into PowerDB. www.megger.com... -
Page 45: Service
+1 670 676 8500 vfcustomersupport@megger.com Troubleshooting The Troubleshooting Guide is designed to evaluate the reasons for a TTRU1 malfunction. The possible test set malfunctions and causes are listed below. Electronic circuit repairs should not be attempted in the field. Refer to Repair section. -
Page 46: Maintenance
The TTRU1 requires only periodic inspection. Inspect all hardware items to ensure all are in good condition. The TTRU1 may be cleaned periodically. In so doing, do not allow water to penetrate panel holes. An all-purpose, household spray cleaner can be used to clean the panel. Polish with a soft, dry cloth. Clean the cables and mating panel receptacles with isopropyl or denatured alcohol applied with a clean cloth. - Page 47 Warnings and safety precautions www.megger.com...
- Page 48 NOTES www.megger.com...
- Page 49 NOTES www.megger.com...
- Page 50 NOTES www.megger.com...
- Page 51 NOTES www.megger.com...
- Page 52 Manufacturing sites Megger Baker Instruments Megger USA - Dallas Megger USA - Valley Forge 4812 McMurry Ave., Suite 100 4545 West Davis Street Valley Forge Corporate Center Fort Collins, Colorado 80525 Dallas TX 75237 2621 Van Buren Avenue Norristown 1-970-282-1200 or 1-800-752-8272...
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