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Raytech TR-MARK III Instruction Manual

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  • Page 2: Table Of Contents

    Copy Actual Transformer....................... 37 8.2.4 New Measurement......................... 38 8.2.5 Working with Templates ........................ 38 Info ..............................39 8.3.1 Enter Tap Changer Data by Wizard....................41 8.3.2 Enter Tap Changer Data manually ....................41 90100.1.02 Instruction Manual TR-MARK III Page 2 of 70...
  • Page 3 TR-MARK III Communication Port...................... 50 10.3.1 Hardware Protocol ........................50 10.3.2 Software Protocol........................50 10.4 TR-MARK III Remote Commands ...................... 51 Application Notes .......................... 54 Real Three Phase Voltage Option T-Rex ................... 54 A.A.A Introduction:........................... 54 A.A.B Theory of Operation........................56 A.A.C...

  • Page 4: Safety Precautions

    Do not vary the input power source voltage level (IE...Connected to a variable AC power source). The TR-MARK III auto-senses the input power from the mains plus from 100 to 240 VAC 50/60Hz. Varying the input voltage will cause the test voltage to vary and result in a higher or lower test voltage than indicated.
  • Page 5 Because of the danger of introducing additional hazards, do not install substitute parts or perform any unauthorized modification to the instrument. Return the instrument to a Raytech service department for service to ensure proper operation and that safety features are maintained.

  • Page 6: Unpacking

    If any of the above items are missing or damaged contact your local representative or Raytech GmbH immediately. NOTE ⇒ The TR-MARK III field case is a waterproof design. When the case is unlocked, a small hole automatically opens, to compensate atmospheric pressure changes.

  • Page 7: Introduction

    Operation: The TR-MARK III first applies a small voltage on the HIGH winding side of the transformer and measures back through the LOW side of the transformer. Analysis is made and the system determines whether a test can be conducted.

  • Page 8: Advantages & Features

    The system constantly monitors the condition of the transformer under test. The TR-MARK III can even recognize shorted leads and will terminate the test without any damage to the test equipment. This works especially well when test leads accidentally fall free from the transformer while under full voltage measurement.

  • Page 9: System Details

    This is an extremely useful device for checking for shorted turns and incorrect settings of tap changers. The TR-MARK III has an additional feature of allowing the operator to measure the actual phase angle and vector relationship of the windings.

  • Page 10: Transformer Turns Ratio Meter Uses

    But please check chapter ‘1 Safety Precautions’ for safety grounding. ⇒ Hooking up to a transformer: The TR-MARK III protects against a wrong hook-up to a transformer or testing a severely defective transformer. Every effort has been made to alert the operator when something is wrong.

  • Page 11: Limitations Of Turns Ratio Testing

    Most current transformers can be tested by TR-MARK III. Please see chapter ‘A.B Current Transformer Testing’ for details about CT testing. You may find some small low power current transformer difficult to test by TR-MARK III. In this case, please contact Raytech for information about TR-1.

  • Page 12: Quick Start Guide

    3. Press ‘Go ABC’ or ‘Go…’ to 4. Get the results start a measurement. WARNING! ⇒ Do not touch the test clips if the safety indication is red. Test voltage will be present. 90100.1.02 Instruction Manual TR-MARK III Page 12 of 70...

  • Page 13: Connection To Test Object

    Plug the TR-MARK III into an available grounded outlet with 110/240 VAC 60/50 Hz power source. Connect the TR-MARK III to the transformer under test with the colored test leads and if required use the 10 meter red measuring lead extensions. The extensions will connect to the multicolor leads and the connectors on the front panel.

  • Page 14: Comparison Of International Standards

    ⇒ The TR-MARK III auto-senses the input (mains) voltage from 100 TO 240 VAC 50 / 60 Hz. ⇒ The TR-MARK III then “locks–in” the test voltage range. If the input voltage (mains) is varied after the TR-MARK III was powered on the...

  • Page 15: Operation Elements Field Case

    Use this terminal, to connect an additional ground line, if your mains cable does not provide a ground line. Use it also if you are not sure, that the local installation provides a low resistive ground. 90100.1.02 Instruction Manual TR-MARK III Page 15 of 70...

  • Page 16: Emergency Stop

    Indicates there is test voltage on test leads. System is testing. 5.2.10 Display and Touch Panel The TR-MARK III can be easily manipulated and fully controlled by the touch screen panel. If preferred, an external mouse can be connected to the USB Port to control the system.

  • Page 17: Operation Elements Rack

    6.2 Rack: Rear Panel Overview 7: External (Tap Changer) 4: High Voltage Side 6: 3 Phase 1: Fuse and Extension Mains Input 5: Low Voltage Side (T-REX) 2: Ground Terminal 8: Interface (USB and RS232) 90100.1.02 Instruction Manual TR-MARK III Page 17 of 70...

  • Page 18: Transformer, Measurement And Data Structure

    7.2 How it works With TR-MARK III we offer another powerful tool, that increases comfort in handling many transformers which are tested time after time. You do not have to sort a stored measurement anywhere.
  • Page 19 ‘save’. Please see chapter ‘8.1.2.3 Turns Ratio or Voltage Ratio, Print and Save’ for details Please see chapter ’8.2.2 Load from Archive’ or ’8.4 Archive’ for details 90100.1.02 Instruction Manual TR-MARK III Page 19 of 70...

  • Page 20: Operating Menu

    8 Operating Menu TR-MARK III Menu structured as shown in the figure below. Pressing a Cancel button, will bring you one layer towards Main Screen. Main Screen (Measurement) Info Archive Setup Load Copy Actual Load Delete Export Transformer from Archive...

  • Page 21: Main Screen

    8.1.1 Operating on a simple screen, no Transformer Data entered If a new Transformer is entered to TR-MARK III, the main screen appears as followed: Main Screen is the basic platform of TR-MARK III operation. On this screen, you will find buttons, indications and results.
  • Page 22 This Option is also used to do a ‘GO Tap’ if you have tabs. Please see chapter ‘8.1.4 Taps’ about how to define a transformer with taps. 90100.1.02 Instruction Manual TR-MARK III Page 22 of 70...

  • Page 23: Further Options Of Main Screen

    Tip here 8.1.2.2 Continuous Measurement and Stop Measurement On TR-MARK III a running measurement is indicated by a progress bar. In this phase the buttons in the lower part of the display disappear, and the two buttons Cont and Stop appear.
  • Page 24 8.1.2.3 Turns Ratio or Voltage Ratio, Print and Save Of course TR-MARK III provides conversion of voltage ratio in to turn ratio. You can easily switch between these two options After every measurement the results can be printed or stored. Use ‘Print’ and ‘Save’ to do NOTE ⇒...

  • Page 25: Operating On An Advanced Screen, Transformer Data Entered

    To provide more details, deviation appears in column Dev. In chapter ‘8.3 Info’, read about section ‘General’ for details about pass/fail criteria. Pass: Fail: When a Transformer Name is entered, it is displayed here 90100.1.02 Instruction Manual TR-MARK III Page 25 of 70...
  • Page 26 If you change between Turn and Voltage Ratio, nominal and measured Ratio will be displayed in the format of your choice. Calculated or not calculated value affects only nominal ratio display. The following example shows a D:y Transformer and what display options TR-Mark III provides: As number...

  • Page 27: Taps

    8.1.4 Taps As its forerunner, TR-MARK III provides tap changer control. The following Screens show a transformer with a fully filled info field. If you do not fill it out, some shown information may not appear, but the screen keeps the same functionality.
  • Page 28 How to choose taps by nominal voltage: 90100.1.02 Instruction Manual TR-MARK III Page 28 of 70...

  • Page 29: More Taps

    You may find Transformers with tap changers on primary and secondary winding system. TR-MARK III helps you to handle this too. Now let’s see what happens, when we enter in chapter ‘8.2.1.2 Taps’ a Transformer with taps on both sides.

  • Page 30: Tertiary Winding System

    A really special transformer may have a primary, a secondary and a tertiary winding, and several taps on each winding. That’s not a problem when you are using a TR-MARK III. A few buttons will give you control and overview over the complete measurement of such a transformer.
  • Page 31 Just be aware, that when you switch back to measure primary to secondary winding system, the tertiary tap changer is no longer relevant. TR- MARK III then automatically defines the primary tap changer to be free. 90100.1.02 Instruction Manual TR-MARK III Page 31 of 70...

  • Page 32: New

    8.2 New TR-MARK III offers an improved data structure and handling to support your needs. When the button ‘New’ in main screen is pressed, the user is asked what he wants to do by offering the four buttons showed below.

  • Page 33: New Transformer

    Touch ‘Go Info’ to get to main screen via Info menu, if you like to enter transformer details. ‘-> Temp’ will store the new transformer as a template. Please see chapter ‘8.2.5 Working with Templates’ for detailed information. 90100.1.02 Instruction Manual TR-MARK III Page 33 of 70...
  • Page 34 NOTE ⇒ Please Check chapter ‘8.3.1 Enter Tap Changer Data by Wizard’ for detailed information about how to assign voltages to tap steps 90100.1.02 Instruction Manual TR-MARK III Page 34 of 70...
  • Page 35 Don’t worry about transformers with three winding systems. Just activate the ‘tertiary’ option, by touching the checkbox. Then the buttons for one more coil appears. And of course you can also define taps for this third winding system. 90100.1.02 Instruction Manual TR-MARK III Page 35 of 70...

  • Page 36: Load From Archive

    8.2.2 Load from Archive You may already have the transformer you are up to measure stored on TR-MARK III or on a memory stick. Touch here to choose source In the Archive screen, make your choice by touching on a transformer with your finger. Tap ’Load’...

  • Page 37: Copy Actual Transformer

    In this case we recommend you to use the “Copy Actual Transformer” option. After tapping this button, TR-MARK III will copy the actual transformer basics, or lets say those things which don not change on transformers of the same type. In other words, a new...

  • Page 38: New Measurement

    The new profile will be created with a minimum of information, and it will be stored in the archive of TR-MARK III. In the info field ‘serial number’, ‘Teplate’ will automatically be entered, and you will be asked to give a Name to the transformer.

  • Page 39: Info

    8.3 Info This screen has two goals: Helping the operator to identify Transformers • Feeding TR-MARK III firmware with information, to improve its output. • Viewing and printing of results • and it contains four sections. The sections are chosen by touching their name on the left side of the screen.
  • Page 40 When started from Main Screen, in chart ‘Results’ will be named as ‘actual Result’ and it will only show the actual result. 90100.1.02 Instruction Manual TR-MARK III Page 40 of 70...

  • Page 41: Enter Tap Changer Data By Wizard

    Just push on the filed you like to edit. The editor works for designator and voltage. Touch here for Touch here for voltage designator 90100.1.02 Instruction Manual TR-MARK III Page 41 of 70...

  • Page 42: Archive

    The ‘Archive’ menu is used to load, delete, import or export and show information of Data on TR-MARK III. Of course, the import and export feature can only be used, when a memory stick is connected to TR-MARK III’s USB port.

  • Page 43: Setup

    • They can easily be switched with the symbol taps on top of the screen. The content of this four parts is described in the following chapters. Symbol Taps Menu Content 90100.1.02 Instruction Manual TR-MARK III Page 43 of 70...

  • Page 44: General

    8.5.1 General 8.5.1.1 License License Manger is used to enter a Raytech license number. If your license state changes, you may be asked to enter a new license. This menu displays the actual license state. By touching the ‘Enter New License Key’ button, you can do so.

  • Page 45: Operators

    This may be helpful, when several operators are using the same TR-MARK III. 8.5.3 Standards TR-MARK III supports several international transformer standards. Use this menu to choose the one you prefer. 8.5.4 Printer If you are up to use an external USB Printer, you should choose the correct emulation.

  • Page 46: Technical Specification

    0.15% ± Rdg ±1 LSD 101 … 325 0.3% ± Rdg ±1 LSD 326 … 400 0.4% ± Rdg ±1 LSD Current Range Accuracy Resolution 0 ... 1A ±0.001 A 0.1mA 90100.1.02 Instruction Manual TR-MARK III Page 46 of 70...

  • Page 47: Specifications

    TRO203 External test switch for Tap changer testing • T-REX 3-phase Supply to energize all 3 phases at once • TR-MARK IIIR 19”, 4U Rackmount version • * Specifications are subject to improvement at anytime 90100.1.02 Instruction Manual TR-MARK III Page 47 of 70...

  • Page 48: Interfaces

    External Flashlight Standard 1.1 example for external warning device TR-MARK III offers 1 relay contact between Pin 3 and Pin 4. Pin 1 & 2 is the Tap Changer input. Shorten those two pins by a working contact to start measurement when using ‘Go Tap’.

  • Page 49: Raytech Toolbox

    10.2 Raytech Toolbox The Raytech Toolbox is for Data Exchange between the measuring instrument and an external computer. The Raytech Toolbox can be downloaded free of charge from the internet at www.raytech.ch 90100.1.02 Instruction Manual TR-MARK III Page 49 of 70...

  • Page 50: Tr-Mark Iii Communication Port

    NOTE ⇒ TR-MARK III communication interface is designed to work properly with the same hardware and command set as TR Spy II. Commands that are not used on TR-MARK III will return ‘ok’ as Answer. 10.3.1 Hardware Protocol 9 pole D-Sub •...

  • Page 51: Tr-Mark Iii Remote Commands

    Type of answer ( the command itself) 10.4 TR-MARK III Remote Commands Please visit www.raytech.ch or contact your local representative or Raytech Switzerland for a complete and actual command set. 90100.1.02 Instruction Manual TR-MARK III Page 51 of 70...
  • Page 52 Appendix Turns Ratio Meter 3 Phase Type TR-MARK III Raytech GmbH Oberebenestrasse 11 CH 5620 Bremgarten Switzerland 90100.1.02 Instruction Manual TR-MARK III Page 52 of 70...
  • Page 53 Introduction: ........................... 54 A.A.B Theory of Operation........................56 A.A.C Unpacking Procedure ........................57 A.A.D Operating TR-MARK III with T-Rex....................58 A.A.E Operating a TR-MARK II with a T-Rex................... 62 A.A.F Technical Specifications (T-Rex) ....................63 Current Transformer Testing ......................64 A.A.G...

  • Page 54: A Application Notes

    A.A Real Three Phase Voltage Option T-Rex A.A.A Introduction: The Raytech three phase voltage system option T-Rex is an optional system accessory for 3- Phase transformer ratio meter test sets designed by Raytech (i.e. TR-MARK III). T-Rex was designed to allow Engineers and Test Technicians the ability to test the phase relationships and actual voltage ratios of transformer windings while applying three phase voltage.
  • Page 55 The system is precision built and extremely accurate. Ease of use: The T-Rex is an intelligent system option that communicates with the TR-MARK III or TR-Spy MARK II during three phase voltage measurements. No additional programming is required. The system and option can operate a full 3 phase testing sequence with a single push button operation.

  • Page 56: Theory Of Operation

    A Transformer with the following configuration D-Y 1 would have a (+) Positive 30 º result. And likewise, a transformer with a configuration of D-Y 11 would have a (-) Negative 30 º result. 90100.1.02 Instruction Manual TR-MARK III Page 56 of 70...

  • Page 57: Unpacking Procedure

    If any of the above items are missing or damaged contact your local representative or Raytech GmbH immediately. NOTE ⇒ The T-Rex field case is a waterproof design. When the case is unlocked, a small hole automatically opens, to compensate atmospheric pressure changes. 90100.1.02 Instruction Manual TR-MARK III Page 57 of 70...

  • Page 58: Operating Tr-Mark Iii With T-Rex

    A.A.D Operating TR-MARK III with T-Rex NOTE ⇒ To activate a properly connected T-Rex, all you must do is choose “3P“ when creating a new Transformer. WARNING! ⇒ BEFORE OPERATING THIS OR ANY OTHER TEST EQUIPMENT READ ALL SAFETY WARNINGS AND UNDERSTAND THEM FULLY.
  • Page 59 Basically, this connection is performed as if a standard ratio test was to be made. 5. Connect the power cord supplied with the TR-MARK III to the “POWER INPUT” of the T-Rex. Plug the Power cord into a properly grounded 100 – 250 VAC outlet.
  • Page 60 5. The Results of the voltage ratio and phase relationship will be displayed on the TR-MARK III screen. 6. End of Test. It is now possible to print or store the test results (see the TR-MARK III instructions). 90100.1.02 Instruction Manual TR-MARK III...
  • Page 61 If the initial vector grouping selected was “0”(0° ) and the resulting phase was 62° then select vector phasing “2” (2 x 30° ). 3. The Phase displacement result is the phase relationship between H1 and X1, H2 and X2, etc... 90100.1.02 Instruction Manual TR-MARK III Page 61 of 70...

  • Page 62: Operating A Tr-Mark Ii With A T-Rex

    The first step in operation of the T-Rex is to ascertain the correct Vector phasing of the transformer under test (See also Testing Notes in chapter ‘A.A.D Operating TR-MARK III with T-Rex’ for better understanding). This is accomplished by running a standard Ratio test on the transformer using the TR-Spy MARK II.

  • Page 63: Technical Specifications (T-Rex)

    A.A.F Technical Specifications (T-Rex) Features Outputs a pure three phase sine wave • Fully remote controlled by TR-MARK III or TR-Spy MARK II • Single hook up to the transformer • Automatic selection of test voltage frequency • To measure phase relationships other than 30°...

  • Page 64: Current Transformer Testing

    “X” (low current) side of the current transformer. The TR-MARK III applies a voltage (from 1 to 100 VAC) from the “H” leads and measures back through the “X” leads. The “X” leads always must have a lower voltage than the “H”...

  • Page 65: Low Impedance

    40V (high ratio) or 1V (low impedance) A.A.I Low Impedance In certain cases, where the impedance (inductance) of the CT is so low that TR-MARK III gets to its power limits, an “Overcurrent” Message will be displayed on the screen.

  • Page 66: B Firmware Update

    Once you have downloaded from the website your file containing a new version, copy it to the root directory of a USB memory stick. Then connect this stick to your TR-MARK III. Usually the new firmware release will be detected and you will be asked if you like to install it.
  • Page 67 90100.1.02 Instruction Manual TR-MARK III Page 67 of 70...

  • Page 68: C Error Messages

    C Error Messages TR-MARK III is designed to be trouble free, so you may not see many error messages. A few messages appear because of operation error. Let’s have a look at those first. Message Explanation No Test Leads: TR-MARK III will find out if no test leads are connected, or if they are not connected to test object.

  • Page 69: D Warranty Conditions

    The purchaser is obligated to immediately notify Raytech GmbH Switzerland in writing form of any defects of the supplied test equipment. Raytech GmbH Switzerland must always be given the opportunity to rectify a defect within a reasonable time. The purchaser shall grant an adequate time within the test equipment shall be repaired.

  • Page 70: E Trouble Shooting

    Touch Panel does not work: Please connect any USB mouse to the USB port on the frontpanel TR-MARK III will display a cursor and everything can be done by mouse. Please see chapter ‘8.5.1.4 Cursor’ if cursor is not automatically displayed.

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