Subscribe to Our Youtube Channel
Related Manuals for Megger TRAX
Summary of Contents for Megger TRAX
- Page 1 TRAX Transformer and Substation Test System User’s Manual Art No. ZP-AJ01E Doc. AJ0383DE V04a 2016...
- Page 3 © 2016, Megger Sweden AB. All rights reserved. The contents of this manual are the property of Megger Sweden AB. No part of this work may be reproduced or transmitted in any form or by any means, except as permitted in written license agreement with Megger Sweden AB. Megger Sweden AB has made every reasonable attempt to ensure the completeness and accuracy of this document.
-
Page 4: Table Of Contents
7.1 Communication ports ........50 Generator settings ............ 22 7.2 Remote control ..........50 App settings .............. 23 Connecting a device to TRAX ........50 5.3 Manual control application examples ..26 Off-line (simulation) mode ......... 51 Resistance measurements .......... 26 Excitation current (impedance) measurements ... 26... - Page 5 8 Update TRAX ............. 52 8.1 Upgrading ..........52 Upgrading via Internet ..........52 Upgrading via USB ............ 52 Getting a TRAX (USB) upgrade via PC ......52 9 Specifications ............. 54 Specifications TRAX .........54 Index ............56 AJ0383DE ZP-AJ01E TRAX...
-
Page 6: Introduction
▪ State of the art measurement methods for advanced diagnostic testing together with high precision metering instrumen- tation allow TRAX to be used in a wide range of ▪ Variable output frequency for accurate applications such as resistance, ratio, excitation,... -
Page 7: Warranty
Megger of any shortage. ▪ Examine the instrument for damage occurred in transit. If damage is identified, file a claim with the carrier at once and notify Megger giving a detailed description of the damage. ▪ The instrument has been thoroughly tested, calibrated and inspected to meet rigid specifications before being shipped. -
Page 8: Safety
Detector will indicate that the separate to be connected to station ground using a “Test Ground” on the side panel is not separate ground cable (not via TRAX unit!) connected to safety/chassis ground. ▪ In compliance with local safety regulations... -
Page 9: Safety Instructions
Make sure that the instrument is properly grounded, both through its AC power cord and through the ground connector. The AC power cord is the disconnecting device. Always disconnect test leads from test specimen before attempting to disconnect them at the test set. AJ0383DE ZP-AJ01E TRAX... -
Page 10: Maintenance
Maintenance DISCONNECT the MAINS plug before any cleaning or maintenance. Maintenance should be performed only by qualified personnel familiar with the hazards involved with high-voltage test equipment. TRAX ZP-AJ01E AJ0383DE... - Page 11 2 SAFETy AJ0383DE ZP-AJ01E TRAX...
-
Page 12: Controls, Indicators And Connectors
WARNING 0-200 A AC / 0-800 A AC The outputs 1, 2, 4 and 6 are connected TRAX 220: 0-200 A (6 V), TRAX 280: 0-800 A (6 V) internally to the same output transformer AUX CONTROL and should be considered “live” when Ethernet communication and power (54 V DC) to accessories. -
Page 13: Top Panel
Control knob for controlling selected output generator. Press to change value for the incre- mental steps (e.g. 1 V, 2 V, 5 V, 0.1 V). Used as pairing device when connecting TRAX for external control via Ethernet or Wifi cursor up/down when reading reports. -
Page 14: Communication And Safety
ON / OFF Press button for 1 second and the instrument will start. Press for 3 seconds and the instrument will shut off. STROBE External strobe is optional, but when connected, it will flash while generating voltage/current. TRAX ZP-AJ01E AJ0383DE... - Page 15 1 to 16 A DC current outputs. If the channels are used for measuring AC, max input is 40 V RMS. LED INDICATORS Red LED’s indicate which channel to connect to depending on what App is used. AJ0383DE ZP-AJ01E TRAX...
-
Page 16: Basic Operating Description
If a test session needs to be defined before the test is actually performed, the workflow is the following: It is also possible to use TRAX as a manual standard instrument. This operation mode is defined as Open the first app and define the test object, “Manual Test / No configuration”... -
Page 17: Use Measurement As Template
Load the report that was created for the test object. Go from report to a certain app to perform the specific measurements as guided by TRAX. Save and go to the next app. Continue as above for all desired apps. Use measurement as template... -
Page 18: Operating Instructions
Press for one second to turn on TRAX. measurements (see section “Data Logging handling and reporting”) Restart the TRAX SW (but not the HW) Note When TRAX is operated from a PC, shortcut key F5 can also be Restart used for restart Information;... -
Page 19: Gui Settings
Updates (Remote) Reversed Transformer test tables are organized Note For details on TRAX updates see chapter “8 order for with mid-phase in reversed tap order. Update TRAX” on page 52 next tap Note: It is also possible to change tap... - Page 20 5 OPERATING INSTRUCTIONS Apps Updates TRAX stand-alone via USB Press to access the different apps. Insert a USB stick with a valid TRAX update (from remote update) Source Select USB Download Get the available file from USB Install Selected update is installed Network Settings for TRAX remote operation.
-
Page 21: Manual Control
SFRA Output generators and input channels can be selected measurements. to perform a variety of measurements. Manual Control is used to operate TRAX in manual mode. Manual All generators and analog measurement Control channels except transducer input and timing channels can be accessed from Manual Control. -
Page 22: Control Knob
Note: Not in Manual Control. Control knob Saves the test results to report/file. If it is the first test TRAX will ask for filename and location. Starts a new test for the same test session. The new test will be reported as a new table... -
Page 23: App Settings
If Manual Control is used for resistance measurements on inductive loads, manual setting with small and slow adjustment of test current should be used. For measuring highly inductive loads, e.g. transformer windings, the winding resistance app should be used. App settings Press AJ0383DE ZP-AJ01E TRAX... - Page 24 Transducer Transducers can be used to convert a measurement signal to an appropriate current or voltage signal to be measured by TRAX, e.g. active current clamps (current to voltage). Internal measurement channels. Always active showing RMS values in the analog meters. Needs to be selected to be captured and hold and/or used for calculations.
- Page 25 Note Selected measurement channels in Manual Control are “always on” (multimeter mode) to be able to be used with or without TRAX gen- erators. This means that values are displayed also before the TRAX generator is started. For phase measurements, the lowest channel number is reference (e.g.
-
Page 26: Manual Control Application Examples
Select 0-250 V or 0-2200 V generator pending the expected saturation voltage of the test object. Select “Gen I” and “Gen U” measurement Press “OK”. channel set to frequency to measure the ex- Press citation voltage and current and use the data for calculations. TRAX ZP-AJ01E AJ0383DE... -
Page 27: Zero-Sequence Impedance Measurements
Select Gen I measurement channel, set to freq, to capture an hold the excitation cur- rent and use the data for calculations. Select Ch 1, set to freq, for voltage measure- ment. (Gen U can be also used for the measurement AJ0383DE ZP-AJ01E TRAX... -
Page 28: Power Transformer Turns-Ratio Measurements
If excitation current is of interest, also acti- Wait for results to stabilize. vate Int Gen I and configure it to AC RMS. Press and read the results. Activate Channel Ch 1, configure it to Volt- age (V) and Freq. TRAX ZP-AJ01E AJ0383DE... -
Page 29: Ct Ratio With Current
Note The test mode is GST-GND which means that Select 0-200 A (or 0-800 A if TRAX 280) gen- the total current to ground will be measured. erator. The test result will be affected by all stray Select frequency, typically 50 or 60 Hz. -
Page 30: Contact Resistance
Ramp up time (s) 1, 2, 3, 5, 10 or 20 Show current On/Off Constant current time (s) 3, 5, 10, 20, 60 or 3600 Ramp down time (s) 0.3, 1, 2, 3, 5, 10 or 20 TRAX ZP-AJ01E AJ0383DE... -
Page 31: Connection For Measurement
The DualGround feature is used in situations where the current through the test object is not the same as the generated current. A typical example is measuring circuit breaker contacts while the circuit breaker is grounded on both sides. AJ0383DE ZP-AJ01E TRAX... -
Page 32: Winding Resistance
1% of the rated winding current. Avoid testing at >15% of rated current since this may cause heating which will affect the accuracy. Typical test currents are 1-15% and using 5-15% will give fast and stable readings. TRAX ZP-AJ01E AJ0383DE... -
Page 33: Transformer Configuration (Vector Diagram)
Windings can be turned on or off and if two windings are active, TRAX assumes that it should do a dual-channel (simultaneous winding magnetiza- tion) test (recommended for LV delta configurations). -
Page 34: Connection For Measurement
5 OPERATING INSTRUCTIONS Settings HV measurements Press LV measurements Test Parameters Select test parameters and make settings. Demag When activated, TRAX suggest to do Warning demagnetization when leaving the WRM app. Auto Stop Stability Threshold Select minimum values for stability Stability Time Minimum time for stability before initiating measure/stop. - Page 35 Start generating, when reading is stable, stop measurement and the result is displayed Repeat from step 2 until last tap. Reconnect cables and perform test on next phase. Winding variation will be displayed when all phases are measured. AJ0383DE ZP-AJ01E TRAX...
-
Page 36: Demagnetization
5 to 6 will be reported on the row for tap 6. If continuity is OK, TRAX will start meas- Demagnetization is recommended before performing ure resistance for the actual tap on the any tests on the transformer and in particular before active row. -
Page 37: Step-By-Step Instructions
H1/U to H2/V. Select generator. Select demagnetization current, normally the same as the test current, about 1% of rated TRAX turns ratio app determines the transformer winding current. turns-ratio as defined by international standards. The Press to start test... -
Page 38: Step-By-Step Instructions
Voltage unit V or kV HV-Tertiary Test Frequency Test frequency selection; 16 2/3, 25, 50, 55 (default) or 60 Hz Step-by-step instructions No configuration Connect cables. Select test voltage. Press to start test. Perform next measurement. Save results. TRAX ZP-AJ01E AJ0383DE... -
Page 39: Excitation Current
Press Connect cables. Press to display a connecting diagram. TRAX Excitation current app is intended for measuring current and impedance on one side of a transformer with the opposite windings open. WARNING Select test voltage. -
Page 40: Step-By-Step Instructions
Press to start the first test. Readings will be displayed automatically when stable and generator will stop. Continue with next test. New tests will be added to the table. It is possible to re-meas- TRAX ZP-AJ01E AJ0383DE... -
Page 41: Short-Circuit Impedance / Leakage Reactance
Default 3% Impedance Deviation from nameplate imped- Error ance TRAX Short-circuit Impedance/Leakage Reactance app Default 3% is intended for impedance measurements on the HV side of the transformer with the LV side shorted. Transformer configuration Without configuration you need to decide how to Configuration is selected by entering the connect and what to measure. -
Page 42: Step-By-Step Instructions
250 V which may be limiting the maximum test current for small transformers with high HV winding resist- ance. When configuration is selected, TRAX suggest Press to start the generator and meas- measurements per-phase and the variation in leakage ure. - Page 43 5 OPERATING INSTRUCTIONS AJ0383DE ZP-AJ01E TRAX...
-
Page 44: Data Handling And Reporting
Test configuration ▪ A test session is started when TRAX is started and finished when TRAX is closed or when the user In many situations it is advisable and sometimes select “new” in the home view. -
Page 45: Save And Report
Save a copy to a selectable destination e.g. USB Press to save. stick If autosave is selected, TRAX automatically ask for sav- ing when the first app in the test session is opened. Return to previous report/file you can save on PC, TRAX or USB stick. -
Page 46: Load File
Press “Filename” to enter the name. Press “OK” button to save the file. Select test report to open. To select another report, press to select report/file. Press to enable the action buttons, see “Ac- tion buttons” on page 45. TRAX ZP-AJ01E AJ0383DE... -
Page 47: Delete Files
The TRAX file/report will be opened as-is with transformer data and test tables but without any measurements. Scroll down to find desired measurements. -
Page 48: Trax Logfile
6 DATA HANDLING AND REPORTING 6.6 TRAX logfile The logfiles are accessed via “Logging” in the home menu. The files are organized by apps. Logfiles can be downloaded to USB or PC with the upper right button. Filename is *.log. Format is tab delimited text and the files can be directly imported as data from text in Excel. - Page 49 6 DATA HANDLING AND REPORTING AJ0383DE ZP-AJ01E TRAX...
-
Page 50: Remote Control And Communication Ports
SW on the USB stick delivered with the unit and run/ install on your device. Connecting to TRAX: Connect the Ethernet cable to TRAX or to a network where TRAX is connected. Wait until your device has discovered an un- known unit (normally by displaying a “?”... -
Page 51: Off-Line (Simulation) Mode
The pairing procedure has to be repeated every time you make an attempt to connect. This is a safety feature especially in situations where one or more TRAX units are connected to a network and possible to operate from several computers. -
Page 52: Update Trax
Update TRAX 8.1 Upgrading From the home page select “Settings” and “Update”. TRAX SW can be upgraded via Internet or with a USB The PC will start searching for available up- stick. dates and if/when an update is found, display “Update available”. - Page 53 8 UPDATE TRAX AJ0383DE ZP-AJ01E TRAX...
-
Page 54: Specifications
9 SPECIFICATIONS Specifications Specifications TRAX Outputs Item Specification Comment Specifications are valid at nominal input voltage and an ambient 0-2200 V 1 A, 1 min The output is disconnected temperature of +25°C ±5°, (77°F). Specifications are subject to 0.2 A, >2 h with a relay and the output change without notice. - Page 55 TRAX specification is valid at 230-240 V mains voltage. Output power is decreased at lower mains voltages. Derating at high ambient temperature TRAX specification is valid at 23 ±5°C. Max output current times will be reduced when using TRAX in high ambient temperature. Derating at lower frequencies TRAX voltage output specification is at 50 Hz.
-
Page 56: Index
Manual Control ........16, 21 Communication ports........50 Manual test ............ 16 Configured test ..........16 Connecting a device to TRAX ....... 50 Off-line (simulation) mode ......51 Connectors ............ 12 Open ground detection ........8 Contact Resistance ........30 Operating instructions........ - Page 57 TRIG IN ............15 Turn off TRAX ..........18 Turns ratio ............. 37 Upgrading ............52 Use measurement as template...... 17 Voltage withstand measurements....29 Warning and Caution Notices ......8 Warranty ............7 Warranty repair ..........7 Winding resistance ........32 Zero-sequence impedance measurements ...
- Page 58 ▪ Insulation Power Factor (C&DF) Test Equipment worldwide. ▪ Insulation Resistance Test Equipment Megger is certified according to ISO 9001 and 14001. ▪ Line Testing Equipment Megger is a registered trademark. ▪ Low Resistance Ohmmeters ▪...
Need help?
Do you have a question about the TRAX and is the answer not in the manual?
Questions and answers