Raytech TR–Mark III 250V Instruction Manual

Raytech TR–Mark III 250V Instruction Manual

Three phase automatic transformer turns ratiometer test system
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RAYTECH USA, Inc.
118 S. 2nd Street, Perkasie, PA 18944 USA
Tel. 267 404 2676 Fax. 267 404 2685
Instruction Manual
Three Phase Automatic
Transformer Turns Ratiometer Test System
Model: TR–Mark III 250V
Version 1.10 Preliminary

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  • Page 1 RAYTECH USA, Inc. 118 S. 2nd Street, Perkasie, PA 18944 USA Tel. 267 404 2676 Fax. 267 404 2685 Instruction Manual Three Phase Automatic Transformer Turns Ratiometer Test System Model: TR–Mark III 250V Version 1.10 Preliminary...
  • Page 2: Table Of Contents

    Printer ............................42 8.5.4 Color .............................. 42 Technical Specification ..........................43 Interfaces ..............................45 10.1 Hardware............................45 10.2 Raytech Toolbox..........................46 10.3 TR-Mark III 250V Communication Port....................47 10.3.1 Hardware Protocol ........................47 10.3.2 Software Protocol........................47 10.4 TR-Mark III 250V Remote Commands ....................47 Instruction Manual TR-Mark III 250V Version 1.10 Preliminary...
  • Page 3: Safety Precautions

    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 4: Unpacking

    Instruction Manual If any of the above items are missing or damaged contact your local representative or Raytech USA immediately. NOTE  The TR-Mark III 250V field case is a waterproof design. When the case is unlocked, a small hole automatically opens, to compensate atmospheric pressure changes.
  • Page 5: Introduction

    3 Introduction 3.1 History Raytech first developed the Transformer Turns Ratio Spy (TR-Spy) for high degree of accuracy for the research and development of transformers. This technology was then packaged into a portable test system for use by transformer manufacturers, rebuild shops, and electrical maintenance crews.
  • Page 6: Advantages & Features

    3.3 Advantages & Features  Color LCD with backlighting and touch screen  Automatic measurements of Voltage, Turns Ratio, Current, and Phase displacement  Easy one time hook up to the transformer  Automatic test voltage range  Displays deviation from a nominal ratio ...
  • Page 7: System Details

    3.4 System Details 3.4.1 System Check: The instrument is Line operated. The system is designed to be used with voltage power sources (mains power) between 100-250 Vac 50/60Hz. The system performs a self-check each time that it is powered on. The User should always visually inspect all connectors, cables and devices to be measured to avoid any safety issues.
  • Page 8: Transformer Turns Ratio Meter Uses

     Suspected broken, damaged, or missing core laminations. In the cases listed above, Raytech recommends the use of the optional unit; model T-Rex, in conjunction with the TR-Mark III 250V. To get further Information on the T-Rex please view the website; www.raytechusa.com or contact Raytech to get additional details and information.
  • Page 9: Quick Start Guide

    4 Quick Start Guide 4.1 Instrument operation  Wait until the green light shows “Safe” before handling the cables  If you are new to transformer turns ratio testing, please review the entire manual carefully before operating this equipment.  Examples for connections to the transformer see next pages ...
  • Page 10: Connection To Test Object

    The TR-Mark III 250V test set is designed to detect errors in transformer hook ups. Contact the Raytech Service & Support department if you need assistance. NOTE ...
  • Page 11: Comparison Of International Standards

    4.2.2 Comparison of International Standards High Winding Side: Wire Color ANSI Wire Color Wire Color Australian BLACK BLACK WHITE WHITE BLUE BLUE YELLOW YELLOW BLACK Low Winding Side: Wire Color ANSI Wire Color Wire Color Australian BLACK BLACK WHITE WHITE WHITE BLUE YELLOW...
  • Page 12: Operation Elements

    5 Operation Elements 5.1 Front Panel Overview: 2: Ground Terminal 1: Fuse, Mains Input and 3: Emergency Off Switch 4: High Voltage Side 5: Low Voltage Side 6: 3 Phase Extension (T-REX) 7: External (Touch Changer) 8: Interface (USB and RS232) 9: Safety 11: Thermal 10: Display and...
  • Page 13: Phase Extension (T-Rex)

    5.2.6 3 Phase Extension (T-REX) On TR-Mark III 250V, the T-Rex Interface is used to connect and control the optional T-Rex test set. 5.2.7 External This port is used for an external connection to a tap changer dry contact. This port can also be connected to the optional external control switch- Part No.
  • Page 14: Operation Elements Field Case

    6 Operation Elements Rack Please find legend of elements on previous page. 6.1 Rack: Front Panel Overview 10: Display and Touch Panel 1 Mains Switch 3: Emergency Stop 9: Safety 8: Interface (USB) Indicator 6.2 Rack: Rear Panel Overview 7: External (Touch 4: High Voltage Side 6: 3 Phase...
  • Page 15: Transformer, Measurement And Data Structure

    7 Transformer, Measurement and Data Structure 7.1 Introduction There are thousands of instruments on earth that do a measurement and offer the possibility to store a measured value. This is a very useful feature which saves a lot of time and eliminates errors of writing down values by the operator.
  • Page 16 Transformer Profile Load it (Header) measurement Measurement 1 (1. Jun 2010) Measurement 2 (1. Jul 2010) Measurement 3 (1. Aug 2010) Save it Measurement 4 (1. Sept 2010) Measurement 4 (1. Sept 2010) This shows a Transformer that has been created and measured for the first time on Jun 1 2010.
  • Page 17: Operating Menu

    8 Operating Menu TR-MARK III 250V 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 Transformer Measurement Result...
  • Page 18: Main Screen

    8.1 Main Screen 8.1.1 Operating on a simple screen, no Transformer Data entered When a new Transformer configuration is entered into TR-Mark III 250V in the Setup screen and “GO” is pressed, the main test screen appears as followed: This Main Test Screen is the basic platform of the TR-Mark III 250V operation. On this screen, you will find buttons, indications and results.
  • Page 19 If you are not up to measure all three phases at once, you can also touch ‘Go…’ to choose a phase to be measured in the appearing window. In this case no other phase than the chosen one will be measured. This Option is also used to do a ‘GO Tab’...
  • Page 20: Further Options Of The Main Screen

    8.1.2 Further Options of the Main Screen 8.1.2.1 Change Test Voltage The following is further measurement settings that are provided by the main test screen. The TR-Mark III 250V offers three Test Voltage settings. To change the Test Voltage, just touch on the button with the ‘Ut=…’...
  • Page 21 8.1.2.3 Turns Ratio or Voltage Ratio, Print and Save Of course TR-Mark III 250V 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 22: Operating On An Advanced Screen, Transformer Data Entered

    8.1.3 Operating on an advanced Screen, Transformer Data entered NOTE  Please Check chapter ‘8.4 Info’ if you are not familiar with entering and editing Transformer Data. Using Transformer Data may offer several benefits to you. 8.1.3.1 Pass, Fail and Transformer Name When in ‘Info’...
  • Page 23 8.1.3.1 Turn Ratio and Voltage Ratio Tip here To simplify your work, we provide up to four display options for the entered transformer data. The buttons ‘T Ratio’ and ‘V Ratio’ will lead to a non-calculated view. That means that you will get for instance nominal voltages instead of a calculated ratio displayed.
  • Page 24: Taps

    8.1.4 Taps As its forerunner, TR-Mark III 250V 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. On the upper part of main screen, the actual tap step is displayed as a number.
  • Page 25 How to choose taps by nominal voltage: Instruction Manual TR-Mark III 250V Version 1.10 Preliminary Page 25 of 57...
  • Page 26: More Taps

    8.1.5 More Taps You may find Transformers with tap changers on primary and secondary winding system. TR-Mark III 250V helps you to handle this too. Now let us see what happens, when we enter in chapter ‘7.2.1.2 Taps’ a Transformer with taps on both sides. Free Fixed Touch Step...
  • Page 27: Tertiary Winding System

    8.1.6 Tertiary Winding System A really unusual 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 250V. A few buttons will give you control and overview over the complete measurement of such a transformer.
  • Page 28 And now let us have a look how tap changer control works in this case. Touch on tap changer display as described in chapter ‘7.1.5 More Taps’, and you will find yourself in front of the same screen. The main difference is only the moment you switch to tertiary winding system. Of course you can also assign tertiary tap changer to be free.
  • Page 29: New

    8.2 New TR-Mark III 250V 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. NOTE ...
  • Page 30: New Transformer

    8.2.1 New Transformer This button will start the procedure of creating a new transformer. If the last used Transformer or measurement is not saved yet, you will be asked if you like to do so. 8.2.1.1 Simple Transformer, no taps The TR-Mark III 250V sets the focus on the first winding system.
  • Page 31 8.2.1.2 Taps For every winding system taps can be defined. Just touch on the check box by sides the text ‘No Tap’ below to the transformer coil where you want to enter taps. Then a screen to define tap steps appears. Use ‘<’...
  • Page 32 8.3.1.1 Tertiary Winding System 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. Instruction Manual TR-Mark III 250V Version 1.10 Preliminary Page 32 of 57...
  • Page 33: Load From Archive

    8.3.2 Load from Archive You may already have the transformer you are up to measure stored on TR-Mark III 250V 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. Touch ’Load’...
  • Page 34: Copy Actual Transformer

    8.3.3 Copy Actual Transformer Let’s say you are a manufacturer of transformers or you are doing service and support. In both cases, you will often check identical objects. In this case we recommend you to use the “Copy Actual Transformer” option. After touching this button, TR-Mark III 250V will copy the actual transformer basics, or let’s say those things which do not change on transformers of the same type.
  • Page 35: New Measurement

    8.3.4 New Measurement As described in chapter 7 Transformer, Measurement and Data Structure’, the TR-Mark III 250V has only one measurement present at time. Starting the measurement process again, will result in overwriting the results on the screen. Tapping the ‘save’ button several time will have no effect If you are up to do several measurements and save them, use the ‘New Measurement’...
  • Page 36: Info

    8.4 Info This screen has three goals:  Helping the operator to identify Transformers  Feeding TR-Mark III 250V 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 37  Results A sorted List of results and graphics are available. NOTE  Depending, if you start this screen from Archive or from Main Screen, and if you are the owner of a transformer, it will be read only or read/write.
  • Page 38: Enter Tap Changer Data By Wizard

    8.4.1 Enter Tap Changer Data by Wizard Touch in ‘Info’ Menu on the button by sides “U Nom” to enter tap changer data manually or by wizard. tipp here tipp here 8.4.2 Enter Tap Changer Data manually You can anytime enter corresponding voltages to taps manually. You may use this for instance when your tap steps are not linear.
  • Page 39: Archive

    8.5 Archive The ‘Archive’ menu is used to load, delete, import, or export as well as show information of Data on TR-Mark III 250V. Of course, the import and export feature can only be used when a memory stick is connected to USB port on the Mark III. No memory stick connected.
  • Page 40: Setup

    8.6 Setup Setup menu contains the following four parts:    General Standard Colors   Operators Printer They can easily be switched with the symbol taps on top of the screen. The content of these four parts is described in the following chapters. Instruction Manual TR-Mark III 250V Version 1.10 Preliminary Page 40 of 57...
  • Page 41: General

    8.6.1 General 8.6.1.1 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. Press the ‘Enter New License Key’ button to enter a new License key number.
  • Page 42: Operators

    8.6.1 Operators Every measurement can be stored with the name of the actual operator. In this menu, new operators can enter their first name and last name. Existing entries can be changed. Touch an operators name and then touch ‘ok’ to make your choice. Note the ‘Ask for Operator at Power-up’...
  • Page 43: Technical Specification

    9 Technical Specification Measurement Parameters Ratio: Resolution: 5 Digits 250V Range 0.8 ... 5000 ±0.06% Rdg ±1 LSD 5001…10,000 ±0.1% Rdg ±1 LSD 10,001.. 32,500 ±0.3% Rdg ±1 LSD 32,501…40,000 ±0.4% Rdg ±1 LSD 100V, Range Accuracy at 100 V or 40 V 0.8 ...
  • Page 44 Specifications  Model TR-Mark III 250V  Size L: 470 mm (18.5”) W: 371 mm (14.6”) H: 190 mm (7.5”)  Weight: 9.5 kg (21 lbs.)  Input Power 100 to 250 Vac 50/60 Hz auto ranging. Fuse: 2A  Test Voltage User Selectable: 250, 100, 40, 10, and 1Vac.1A ...
  • Page 45: Interfaces

    10 Interfaces 10.1 Hardware 1 x RS232, 9 Pin 1 x T-Rex Extension Pin 2 TxD (WR100-> Host) Pin 1: trex_D0 Pin 3 RxD (Host-> WR100) Pin 2: trex_D1 Pin 5 Pin 3: trex_Busy Pin 4: GND Interface Parameters: (fixed,unchangeable) Port RS232 Baudrate...
  • Page 46: Raytech Toolbox

    10.2 Raytech Toolbox The Raytech Toolbox is for Data Exchange between the measuring instruments and an external computer. The Raytech Toolbox can be downloaded free of charge from the internet at www.raytechusa.com www.raytech.ch Instruction Manual TR-Mark III 250V Version 1.10 Preliminary...
  • Page 47: Tr-Mark Iii 250V Communication Port

    Answers with data: xx,Message1[,Message2;[Message3]..]“,CR xx Type of answer ( the command itself) 10.4 TR-Mark III 250V Remote Commands Please contact your local representative or Raytech Switzerland for a complete and actual command set. Instruction Manual TR-Mark III 250V Version 1.10 Preliminary...
  • Page 48 Appendix Turns Ratio Meter 3 Phase Model TR-Mark III 250V Raytech GmbH Raytech USA, Inc. Oberebenestrasse 11 118 S. 2nd Street CH 5620 Bremgarten Perkasie, PA 18944 Switzerland Instruction Manual TR-Mark III 250V Version 1.10 Preliminary Page 48 of 57...
  • Page 49 Contents Current Transformer Testing………………………………………………………………50 A.A.A Introduction………………………………………………………………….……...50 A.A.B Usual Measurement………………………………………………………….…..50 A.A.C Low Impedance..……………………………………………………....51 A.A.D Tapped Secondary......………………………………………....51 Test Reports..……………………………………………………………………………52 Internal printer......................52 External printer.....................53 Firmware Update..……………………………………………………………………………54 Error Messages..……………………………………………………………………………55 Troubleshooting.…………………………………………………………………………...…56 Warranty Conditions………………………………………………………………………….57 Instruction Manual TR-Mark III 250V Version 1.10 Preliminary Page 49 of 57...
  • Page 50: Current Transformer Testing

    A.A Current Transformer Testing A.A.A Introduction Current transformers are, in effect, opposite wound voltage transformers. This basically means that the largest number of windings are on the “X” (low current) side of the current transformer. The TR-Mark III 250V applies a voltage (from 1 to 250 VAC) from the “H” leads and measures back through the “X”...
  • Page 51: Low Impedance

    2: Select CT Testing, use 10 (normal), 3: Touch Go A 40V (high ratio) or 1V (low impedance) A.A.C Low Impedance In certain cases, where the impedance (inductance) of the CT is so low that TR-Mark III 250V gets to its power limits, an “Overcurrent” Message will be displayed on the screen. It is then recommended to run the test with a lower test voltage.
  • Page 52: Test Reports

    A Test Reports Test Reports are printed results of TR-Mark III 250V. The following two chapters show test reports. Please see chapter ‘8.1.2.3 ‘Tuns Ratio or Voltage Ratio, Print or Save’ about how to print. To use the external instead of the internal printer, just connect a printer to USB port of TR-Mark III 250V.
  • Page 53: External Printer

    External Printer Instruction Manual TR-Mark III 250V Version 1.10 Preliminary Page 53 of 57...
  • Page 54: Firmware Update

    B Firmware Update As Raytech GmbH always tries to increase comfort and quality of products, sometimes firmware updates may be available. Ask your local vendor, or visit our website www.raytechusa.com and have a look for new firmware releases. Once you have downloaded your file containing a new version, copy it to the root directory of a USB memory stick.
  • Page 55: Error Messages

    TR-Mark III 250V. If any of these messages appear on the screen, turn the TR-Mark III 250V off. Restart it after a few seconds and try again. If you still receive the same message, please contact our local representative or Raytech. ...
  • Page 56: Troubleshooting

    Switzerland: USA: Tel. +41 56 648 6010 + 267 404 2676 Fax. +41 56 648 6011 + 267 404 2685 Website: www.raytech.ch www.raytechusa.com Email: welcome@raytech.ch Sales@RaytechUSA.com Instruction Manual TR-Mark III 250V Version 1.10 Preliminary Page 56 of 57...
  • Page 57: Warranty Conditions

    Exclusive remedies provided herein are the customer’s sole and exclusive remedies. RAYTECH USA, Inc. shall not be liable for any damages resulting from the use of this equipment whether direct, indirect, special, incidental, or consequential damages, or whether based on contract, tort, or any other legal theory.

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