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Raytech WR14-R Instruction Manual

Winding resistance meter 15a, 50a, 100a
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INSTRUCTION MANUAL
ENGLISH
Raytech GmbH, Oberebenestrasse 11, CH 5620 Bremgarten, Switzerland

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  • Page 1 INSTRUCTION MANUAL ENGLISH Raytech GmbH, Oberebenestrasse 11, CH 5620 Bremgarten, Switzerland...

  • Page 2: Table Of Contents

    Contents 1 Safety Precautions........................6 2 Unpacking............................ 8 2.1 WR100..........................8 2.2 WR50..........................9 2.3 WR14..........................10 3 Introduction..........................12 3.1 General..........................12 3.2 Advantages & Features....................13 3.3 System Details........................14 4 Quick Start Guide........................16 4.1 Instrument Operation – Profiles deactivated..............16 4.2 Instrument Operation –...
  • Page 3 6.3.7.3 Color......................50 6.3.7.4 Length Correction..................51 6.3.7.5 License......................52 6.3.7.6 Firmware update...................53 6.3.7.7 Language......................53 6.3.7.8 Clock Settings....................54 6.3.7.9 About......................55 6.3.7.10 USB Printer....................55 6.3.7.11 Service Mode....................56 6.3.8 Config........................57 6.3.8.1 With Profiles deactivated................57 6.3.8.2 Using Profiles....................58 6.3.9 Mode........................60 6.3.9.1 Single......................60 6.3.9.2 Continuous....................60 6.3.9.3 Interval......................
  • Page 4 9 Interfaces..........................102 9.1 Hardware........................102 9.1.1 RS 323........................102 9.1.2 USB........................103 9.1.3 Extern........................104 9.1.3.1 Standard type....................104 9.1.3.2 Example for connecting an external warning device........105 9.1.3.3 Extended Safety Circuit type...............105 Instruction Manual Winding Resistance Meter Page 4 of 139 Type WR100 / WR50 / WR14...
  • Page 5 A.4 Components of T-Base Pro.....................112 A.4.1 T-Base Pro – totally free..................112 A.4.2 Create your Add-On with T-Base SDK..............112 A.4.3 T-Base Pro Remote Option for Raytech Devices...........113 A.4.4 Proprietary Add-On - Sequence................113 A.4.5 Proprietary Add-On - Remote I/O to external Software.........114 A.5 Graphical User Interface....................115...

  • Page 6: Safety Precautions

    90 to 264Vac and 47…63Hz with automatic ranging. The WR14 is battery operated and the WR14-R has a battery operation option. Both systems have safety ground lugs. Instruction Manual Winding Resistance Meter...
  • Page 7 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 8: Unpacking

    2 Unpacking 2.1 WR100 The instrument consists of the following items: The Instrument Hardwired power cable Set of Accessories (Rack handles, Fuses) Current cables Jumper cables Cable bag (2 cables with WR100-13R) Potential cables: Channel 1 Potential cables: Channel 2 Potential cables: Channel 3 (with WR100-13R) USB Memory Stick...

  • Page 9: Wr50

    2.2 WR50 The instrument consists of the follwoing items: The Instrument Power cord (depending Set of Accessories on county of distribution) (Rack handles, Fuses) Current cables Jumper cables Cable bag (2 cables with WR50-13R) Potential cables: Channel 1 Potential cables: Channel 2 Potential cables: Channel 3 (with WR50-13R) USB Memory Stick...

  • Page 10: Wr14

    2.3 WR14 The instrument consists of the follwoing items: The Instrument Power cord (depending Set of Accessories on county of distribution) (Rack handles, Fuses) Current cables Jumper cables Cable bag (2 cables with WR50-13R) Potential cables: Channel 1 Potential cables: Channel 2 USB Memory Stick Instruction Manual Instruction Manual Winding Resistance Meter...
  • Page 11 If any of the above items are misssing or damaged, contact your local representative or Raytech Switzerland immediately. Optional test leads may be ordered (other than shown). Instruction Manual Winding Resistance Meter Page 11 of 139 Type WR100 / WR50 / WR14...

  • Page 12: Introduction

    3 Introduction 3.1 General Raytech Digital Winding Resistance meters are the enhanced version winding resistance system with a most advanced demagnetizing circuit. They are designed for high degree of accuracy for the measurement of very low resistance of inductive loads.

  • Page 13: Advantages & Features

    3.2 Advantages & Features • Highest Accuracy and Precision of any high current test system. • Automatic measurements of Low Resistance from 0.00µΩ ...100kΩ. • Demagnetizing Circuit (Advanced design) • Microprocessor based system with internal storage for over 10000 test results. •...

  • Page 14: System Details

    The internal discharge circuit dissipates the stored energy in the transformer windings with a “Constant Power Discharge Circuit” that is unique to all transformer winding test systems. That is the reason why Raytech systems can discharge transformers more than 10 times faster than any other system on the market.
  • Page 15 Low Resistance Testing: The WR series of test instruments utilize a 4 wire measuring technique for each Channel. The points where the potential leads are connected determine the resistance reading. The test set employs a very simple principle of Ohm’s law: R = Resistance U = Voltage I = Current...

  • Page 16: Quick Start Guide

    4 Quick Start Guide 4.1 Instrument Operation – Profiles deactivated For examples of Transformer connections see chapter 4.4 "Connection to Test Object" on page 19. 1. Power on the instrument 2. Select the Test Current: press Range or Setup / Range 3.

  • Page 17: Instrument Operation - Use Profiles

    4.2 Instrument Operation – Use Profiles For examples of Transformer connections see chapter 4.4 "Connection to Test Object" on page 19. 1. Power on the instrument 2. Check (enable) “Use Profiles” … and touch “OK” 3. Touch “Profil” 4. Touch “New” 5.
  • Page 18 7. Enter additional Data and touch “Back” 8. Touch “Caption” or the blue area above the Result to change. 9. Choose a Caption... 10. … and touch “OK” 11. Start a Measurement as usual WARNING! Wait until the green light shows "Safe"...

  • Page 19: Selection The Proper Current Range

    4.3 Selection the proper current range Ensure that the test current does not exceed 10% of the rated winding current. This could cause erroneous reading due to heating in the winding. 4.4 Connection to Test Object Always check the winding schematic on the nameplate and trace the current path through the windings.

  • Page 20: Single Phase Transformer, Vector Group 0

    4.4.1 Single Phase Transformer, Vector Group 0 Measurement of HV and LV Winding Instruction Manual Winding Resistance Meter Page 20 of 139 Type WR100 / WR50 / WR14...

  • Page 21: Three Phase Transformer, Δ - Δ Vector Group 0

    4.4.2 Three Phase Transformer, Δ - Δ Vector Group 0 Measurement of HV and LV Winding Instruction Manual Winding Resistance Meter Page 21 of 139 Type WR100 / WR50 / WR14...

  • Page 22: Three Phase Transformer Δ - Y

    4.4.3 Three Phase Transformer Δ - Y Measurement of one LV Winding Instruction Manual Winding Resistance Meter Page 22 of 139 Type WR100 / WR50 / WR14...

  • Page 23: Three Phase Transformer Δ - Y

    4.4.4 Three Phase Transformer Δ - Y Measurement of two LV Winding Instruction Manual Winding Resistance Meter Page 23 of 139 Type WR100 / WR50 / WR14...

  • Page 24: Operation Elements

    5 Operation Elements 5.1 WR100 5.1.1 Front Panel WR100R Instruction Manual Winding Resistance Meter Page 24 of 139 Type WR100 / WR50 / WR14...
  • Page 25 1: Display with Touch Panel The instrument can be easily manipulated and fully controlled by the touch screen panel. If preferred, an external mouse or keyboard can be connected to the USB Port to control the system. 2: Safety Indicator Green Light on: System is in safe mode.

  • Page 26: Rear Panel Wr100R

    5.1.2 Rear Panel WR100R Instruction Manual Winding Resistance Meter Page 26 of 139 Type WR100 / WR50 / WR14...
  • Page 27 1: Sense receptacle Connection for the + and – Sense Cable for each channel to the test object (Channel 3: only used on WR100-13) 2: Current receptacle Connection for the + and – Current Cable to test object 3: USB Interface 2 x USB Host 1 x USB Device See chapter 9.1.2 USB on page 103 for details...

  • Page 28: Mains Connections

    9: Earth This terminal is utilized to connect an additional earth ground (safety) line. 10: Power Cable See chapter 5.1.2.1 Mains Connections for details 5.1.2.1 Mains Connections 5.1.2.1.1 Mains Plug Phase 1 (Brown) Phase 2 (Black) Phase 3 (Not connected) Neutral (Grey) (must be connected as neutral: do not connect as a Phase!)

  • Page 29: Mains Connection Example For Wr100R

    5.1.3 Mains Connection Example for WR100R Instruction Manual Winding Resistance Meter Page 29 of 139 Type WR100 / WR50 / WR14...

  • Page 30: Wr50R

    5.2 WR50R 5.2.1 Front Panel WR50R Instruction Manual Winding Resistance Meter Page 30 of 139 Type WR100 / WR50 / WR14...
  • Page 31 1: Display with Touch Panel The instrument can be easily manipulated and fully controlled by the touch screen panel. If preferred, an external mouse or keyboard can be connected to the USB Port to control the system. 2: Safety Indicator Green Light on: System is in safe mode.

  • Page 32: Rear Panel Wr50R

    5.2.2 Rear Panel WR50R Instruction Manual Winding Resistance Meter Page 32 of 139 Type WR100 / WR50 / WR14...
  • Page 33 1: Fuse and Main Input A 16A T (slow blow) fuse protects the device. Use only the correct type fuse. Do not substitute. 2: Current receptacle Connection for the + and – Current Cable to test object 3: USB Interface 2 x USB Host 1 x USB Device See chapter 9.1.2 USB on page 103 for details...

  • Page 34: Wr14R

    5.3 WR14R 5.3.1 Front Panel WR14R Instruction Manual Winding Resistance Meter Page 34 of 139 Type WR100 / WR50 / WR14...
  • Page 35 1: Display with Touch Panel The WR50 can be easily manipulated and fully controlled by the touch screen panel. If preferred, an external mouse or keyboard can be connected to the USB Port to control the system. 2: Safety Indicator Green Light on: System is in safe mode.

  • Page 36: Rear Panel Wr14R

    5.3.2 Rear Panel WR14R Instruction Manual Winding Resistance Meter Page 36 of 139 Type WR100 / WR50 / WR14...
  • Page 37 1: Sense receptacle Connection for the + and – Sense Cable for each channel to the test object 2: USB Interface 2 x USB Host 1 x USB Device See chapter 9.1.2 USB on page 103 for details 3: Temperature receptacle These 3 receptacles are for the external temperature probes (Optional Accessory TP01, TP03) 4: RS Interface...

  • Page 38: Operating Menu

    6 Operating Menu The instrument software is straight forward and easy to set up and operate. With a few key strokes and selections on the test screen, measurements can be started. See chapter 4 Quick Start Guide on page 16. Even if the Profiles Mode is selected measurements can be made quickly. To switch between the Standard mode and the Profiles mode press "Setup"...
  • Page 39 Profiles mode is for assigning the results to a transformer Profile. When Profiles mode is selected the main measurement screen will display "Profile" in the lower right of the main screen instead of "Results". For more details see chapter: 6.2 Menu Structure Use Profiles on page 41 and 6.3.13 Profile on page 71 To learn more about these two methods of storing the results, go to chapter 6.1 Menu Structure without using Profiles on page 40 or 6.2 Menu Structure Use Profiles on page 41.

  • Page 40: Menu Structure Without Using Profiles

    6.1 Menu Structure without using Profiles To work without using Profiles mode, turn off Profiles mode in the Setup menu by unchecking the check box shown in chapter 6 Operating Menu on page 38. The results will then be simply organized and saved by date and time without any transformer information (Standard mode).

  • Page 41: Menu Structure Use Profiles

    6.2 Menu Structure Use Profiles To use Profiles mode, as described in this chapter, turn it on in the Setup menu by selecting the check box shown in chapter 6 Operating Menu on page 38. Only available if an USB Key is connected to the instrument Instruction Manual Winding Resistance Meter Page 41 of 139 Type WR100 / WR50 / WR14...

  • Page 42: Introduction To Transformer Profiles And Data Structure

    6.2.1 Introduction to Transformer Profiles and Data Structure There are many instruments that measure and offer the possibility to store the measured value. This is a very useful feature which saves time and eliminates the possibility of errors of writing down values by the operator.
  • Page 43 Transformer Profile Load it (Header) Do measurement Measurement 1 (1. June 2010) Measurement 2 (1. July 2010) Measurement 3 (1. August 2010) Measurement 4 Save it (1. September 2010) Measurement 4 (1. September 2010) This shows a Transformer which was created and measured for the first time on June 1st 2010. Then this transformer was measured again on the 1st of each month.

  • Page 44: Main Menu

    6.3 Main Menu 6.3.1 Main Menu Screen The Touch screen enables quick navigation by pressing directly on the screen. e.g. if you would like to change the current range, press on the text "Range" and the Menu Range will open. This is a short cut step to the Range menu.
  • Page 45 Status Shows the measurement parameters Temp. Correction Shows the temperature parameters. Temperature variables can be modified by pressing the Setup Button or directly in the text (--.-°C). See chapter 6.3.11 Instruction Manual Winding Resistance Meter Page 45 of 139 Type WR100 / WR50 / WR14...

  • Page 46: Start

    6.3.2 Start Press Start Instrument starts to charge test object with the selected current. Maximum current is shown on the Range Status bar. 6.3.3 Store Press Store Instrument stores the value shown in the Display (R1, R2). The Measurement doesn’t stop. 6.3.4 Stop Press Stop Instrument stops the measurement and begins...

  • Page 47: Demag

    6.3.5 Demag Demagnetization procedure to demagnetize the test object (e.g. transformer core) Demag button appears after measurement is finished. Press Demag Select the demagnetizing current which is usually the same current as the test current and then press start. Demagnetizing procedure runs automatically For a technical description of the demagnetizing feature: See Appendix: Fehler: Referenz nicht gefunden Fehler: Referenz nicht gefunden on Page Fehler: Referenz nicht gefunden.

  • Page 48: Setup

    6.3.6 Setup By pressing the Setup button, the Setup screen will appear. Press the appropriate text box (Caption) in the main menu screen and the Setup-Screen will automatically appear with tabs for selecting screens for Config, Mode, Range, Temperature Correction or similar. General This screen allows the selection, modification and setting of the General Instrument parameters.

  • Page 49: General

    6.3.7 General From the Main screen, press Setup. Then enter the General Setup Menu. 6.3.7.1 Mouse Cursor Show or hide the Mouse Cursor. Useful if operating with a USB Interface mouse. The mouse cursor appears automatically after the USB mouse is connected. You can control the instrument with a USB mouse, track ball and/or keyboard.

  • Page 50: Color

    6.3.7.3 Color Shows the selected colors displayed on the screen. The User may change the colors on the touch screen display by selecting appropriate colors for each. Default A: Black and white screen Default B: Colored screen Black and white may be selected on certain outdoor conditions.

  • Page 51: Length Correction

    6.3.7.4 Length Correction Length Correction Change the measuring unit from Ohm to Ohm/Length. The test results are then corrected to the selected display method. The length of the test object is predefined by the customer. Enter the length of the test specimen. Instruction Manual Winding Resistance Meter Page 51 of 139 Type WR100 / WR50 / WR14...

  • Page 52: License

    Heat Run Test, TbaseRemote, and TBaseSequence- Software. If there is no valid license status displayed, contact your local representative or Raytech GmbH. Extend the license To modify or extend the license, enter a new license code.

  • Page 53: Firmware Update

    6.3.7.6 Firmware update New Firmware versions are available free of charge at www.raytech.ch Download the new Firmware (.zip file) onto your USB key on the root directory (Not in a sub- directory and do not Unzip it). Connect the USB key to the instrument and press install.

  • Page 54: Clock Settings

    6.3.7.8 Clock Settings Adjustment of the internal clock can be made. Date: By pressing the arrow the calendar will be displayed. Select the date by pressing on the actual day. Time: Select hour/minute/second by highlighting the numbers in the clock. Pressing the arrows the time will increase or decrease.

  • Page 55: About

    6.3.7.9 About Shows the Firmware Version and Serial-number of the instrument. 6.3.7.10 USB Printer Certain external USB Printers can be connected. Select the desired printer to print results. Printers not listed are not supported. For more Information see chapter Fehler: Referenz nicht gefunden Fehler: Referenz nicht gefunden on page Fehler: Referenz nicht gefunden.

  • Page 56: Service Mode

    6.3.7.11 Service Mode There are several embedded codes to allow different settings, e.g. calibrate the touchscreen, activate USB-driver and so on. For more information see chapter C Service Mode on page 118. The Service Mode has a limited access. Enter the corresponding code or exit directly by pressing '#'.

  • Page 57: Config

    6.3.8 Config The Config (Configuration) Menu may look differently depending upon if Profiles are selected or not. For more information about using Profiles or to deactivate Profiles, see chapter 6 Operating Menu on page 38. 6.3.8.1 With Profiles deactivated In the tab Config you can change the name (Caption) of the measurement channels. Click on on the white field to change the name (Caption) of the measurement channels.

  • Page 58: Using Profiles

    This feature is very useful if utilizing a Raytech multiplexer which will automatically set the appropriate relay. Thus, with a multiplexer, you connect the measurement cables to a Transformer only once and all measurements are completed without changing any cables.
  • Page 59 Tap: If the transformer has Taps, select the Tap to be measured. Instruction Manual Winding Resistance Meter Page 59 of 139 Type WR100 / WR50 / WR14...

  • Page 60: Mode

    6.3.9 Mode 6.3.9.1 Single Performs 1 single measurement Stop condition: Stops the measurement as soon as the result is within the selected conditions. (Example: within ±0.10% during 10 Seconds of time) 6.3.9.2 Continuous Performs continuous measurement until the measurement is stopped by the user. Quality Assistant: If the result is within the selected parameters, a green light in the main screen will illuminate and...

  • Page 61: Interval

    6.3.9.3 Interval Performs a selected number of measurements (selected with “Count”) and stores result. Interval Time: The time (in Seconds) selected between 2 measurements. It will automatically store the result. Count: The number of measurements to be taken. When all measurements are taken, the system halts and discharges the Transformer. Fix Interval Time: Selects the interval time from Start Time instead of from the 1st measurement point.
  • Page 62 Quality Assistant: If the result is within the selected parameters, a green light in the main screen will indicate this condition and automatically store the result. In the interval mode, the selected Interval measurement start recording results. If the result is out of the selected parameters, a red light in the main screen will indicate this condition.

  • Page 63: Range

    6.3.10 Range Selects the current range for the measurement. Auto Close Setup: Closes the Setup Window after the Current Range selection is made without pressing OK. The 3 frames located on the right side are reserved for User specified Current settings. For adjusting the User Settings: Press “Set”...

  • Page 64: Temperature Correction

    6.3.11 Temperature Correction Activated: Temperature correction is activated when the box is marked. The displayed test value then is a calculated result dependent upon parameters selected. Coefficient: Choose the temperature coefficient of the material to be measured; Either CU (copper), AL (aluminum) or User defined.
  • Page 65 The correction formula: Ts + Tk Rs = Rm Tm + Tk Resistance corrected Measured resistance Desired reference temperature The temperature at which resistance was/is measured 234.5 for copper 225.0 for aluminum (aluminum may be as high as 240) Alternative: Correction with “alpha25” to calculate Tk with the formula: Tk = −...
  • Page 66 To view the actual result without the temperature correction, Press the “T” during the measurement: The “crossed” “T” shows that the displayed resistance value is NOT corrected. The corrected AND the uncorrected values are stored in memory whether or not the correction is activated in the display.

  • Page 67: Results

    6.3.12 Results The Results button appears on the main screen in the lower right hand corner. Press the Results button to view results in Standard mode. If Profiles mode has been turned on, then the “Results” button on the main screen changes to “Profile”. The Profile results can be found under the tabs: Profile, Info, Results.

  • Page 68: Details

    6.3.12.1 Details After selecting results, press Details and view the screen with details of the selected measurements. If no measurements were selected, the details of all stored measurements are displayed. Return to the results overview by selecting "Header". Caption: This is the caption (name) of the measurement channel Rmeas: This is the measurement Result without a temperature correction.

  • Page 69: Diagram

    HRT (Heat Run Test). For an explanation see chapter 7.2 Heat Run Test Software on page 80. The license code for the Heat Run Test is available from Raytech or a Raytech representative. Print: Prints the graph on the panel mount (internal) Printer.

  • Page 70: Print / Export

    If you choose "Export CSV", the selected data will be exported in a CSV file that is named with the serial number of the instrument and the date and time. You can locate the file in the directory: Raytech\EXPORT on the USB Key. To select the CSV Separator, see chapter C.3 CSV Separator on page 120.

  • Page 71: Profile

    6.3.13 Profile Press Profile in the main screen to get an overview of the different transformer profiles. NOTE: For an introduction to Transformer Profiles and Data Structure see chapter 6.2.1 on page 42. You can switch between the Active profile, Internal profiles (stored internally on the instrument) or profiles stored on a USB Key.

  • Page 72: Create A New Profile

    6.3.13.1 Create a new Profile Press new on the tab "Active". A message appears asking if you want to create a completely new transformer Profile or just make a new measurement under the Active Profile. Select "New Transformer" First select the configuration of the Primary winding of the transformer. Choose the corresponding configuration of your transformer Primary side from the Setup menu shown below.
  • Page 73 Taps: Tap changer positions can also be defined for every winding system. Touch the check box beside the text "No. Tap" (Number of Taps) below the transformer coil that you wish to enter the number of Tap positions. A screen appears to allow the setting of the number of tap changer position steps. Use the arrows "<"...
  • Page 74 Tertiary Winding System: Transformers may have a Primary, Secondary and Tertiary winding. Activate the “Tertiary” option, by touching the check box. Buttons appear for the additional winding. And of course, it is also possible to define Tap positions for this third winding. When all parameters are complete, press "Go"...

  • Page 75: Load Transformer Profile From Archive

    Select 'Info' for more information about the transformer. This is the location where additional information about the transformer can be added. 6.3.13.2 Load Transformer Profile from Archive When preparing to test a transformer check to see if its Profile is already stored internally in the instrument or on a USB (key) memory stick.

  • Page 76: Working With Templates

    6.3.13.3 Working with Templates When testing many of the same transformers, it is possible to create a new transformer Profile as a Template. Creating a Profile Template allows editing of parameters, Names, s/n etc.. NOTE: Use this option, if you have to measure many transformers of the same type.
  • Page 77 Template Profiles can be cloned in the Archive menu. The instrument creates a Transformer Profile based on the template. Highlight the Template profile and the “Clone” button will appear in the display. It is only possible to Clone a Profile that was saved as a Template.

  • Page 78: Diagram

    6.3.13.4 Diagram Select Diagram to analyze the measurements graphically. Displayed is a graph as a function of time (e.g. cooling curve of a transformer) With a Tap changer, the curve is a function of the Taps. In this example there are 3 Taps. 14 F(Tap) is only available if you are working with profiles Instruction Manual Winding Resistance Meter Page 78 of 139...

  • Page 79: Options

    7 Options 7.1 Temperature Measurement Raytech WR series Instruments are very accurate and precise test systems. To take full advantage of this high accuracy, the recording of the temperature of the device under test is highly recommended. This is due to the characteristics of the increase in resistance of a metallic object as its temperature increases.

  • Page 80: Heat Run Test Software

    7.2 Heat Run Test Software The Heat Run Test Software, option AHRT 01, is used to analyse the measurement results of the copper loss test of the windings of a transformer and to calculate the resistance values of the winding at the working temperature (time zero). 7.2.1 Introduction The Heat Run Test (HRT) performs a measurement during the cooling curve of a transformer after the transformer has been heated.

  • Page 81: Measurement With Interval Mode For Hrt

    7.2.2 Measurement with interval mode for HRT The heat run timer must be started the moment that the heat source is switched off from the test object. Press the “Timer” Button on the main screen to start the timer. The timer starts running. The timer can be halted, at any time, by pressing the button a second time.
  • Page 82 After charging the transformer, the instrument system monitors the measurements until the results are stable. The results are then stored automatically. Press the “Stop” Button, at any time, to halt the measurement. After storing the last measurement the instrument turns off the output Current, stops the measurement and automatically discharges the transformer until the test object is safe.

  • Page 83: Analysing The Hrt Results

    Although the measurement is finished, the timer continues to operate. This allows further measurements on other windings of the same transformer. The timer can be halted, at any time, by pressing the Timer button. 7.2.3 Analysing the HRT Results Select the measurement results you would like to analyse. Analyses of the recorded data is slightly different if Profiles mode has been used or not.
  • Page 84 Press “Analyse” You’ll be asked for the “Approximation” Model to calculate the value of the Winding at time = zero. Select the Approximation Model: Exp (Exponential) or Linear After selecting the Model press “Analyse” The value and the graph of the approximation R(t=0) is shown.
  • Page 85 You can Print the Graph with the approximation or Save the calculated values to the corresponding results. Instruction Manual Winding Resistance Meter Page 85 of 139 Type WR100 / WR50 / WR14...

  • Page 86: Save The Hrt Approximation

    The gif file is attached to the measurement data. If you export the data to a USB Key, the file will be located in the directory \RAYTECH\DATA\Transformername\ Instruction Manual Winding Resistance Meter...

  • Page 87: Showing The Graph In °C

    7.2.3.2 Showing the graph in °C When the resistance of the winding at any specific temperature and the material is known, all the values can be displayed as °C. Enter the resistance value (Rcold) of the winding, the corresponding temperature (Tref) and the temperature coefficient of the conductor.
  • Page 88 Select "Show Formula" you will have a window after the calculation with all results Selecting "Show Formula" displays the calculated results Instruction Manual Winding Resistance Meter Page 88 of 139 Type WR100 / WR50 / WR14...

  • Page 89: Battery Option Wr14R

    7.3 Battery Option WR14R The WR14R is available with Battery and/or Mains operation. With the battery operating feature, the measurement will not halt if power is interrupted on the mains input. This feature is very helpful if continuous tests are being conducted. e.g. heat run tests. If you have the Battery Option, there is a Battery Symbol on the top of the main screen.
  • Page 90 Low Battery If the battery is low on charge a Battery warning message will be displayed. If conducting a measurement and this message appears, the measurement doesn’t stop, but you are not able to start a new measurement until the mains supply is connected. Very low Battery If the battery charge is extremely low, the WR14 displays a second warning message and...

  • Page 91: Cable Extension Wr100

    7.4 Cable extension WR100 7.4.1 WRO112 The WR100-12R is available with the optional 10m cable extension sets for the Plug type cable sets (Note: Cable sets with the ring lug connectors do not have this option available). The Plug type connector locking system operates on the “push-pull” principle. It self locks when connected. To disconnect the Plug type connector, push in first then pull out.

  • Page 92: Wro113

    7.4.2 WRO113 The WR100-13R is available with the optional 10m cable extension sets for the Plug type cable sets (Note: Cable sets with the ring lug connectors do not have this option available). The Plug type connector locking system operates on the “push-pull” principle. It self locks when connected. To disconnect the Plug type connector, push in first then pull out.

  • Page 93: Cable Extension Wr50

    7.5 Cable extension WR50 7.5.1 WRO102 The WR50-12R is available with the optional 10m cable extension sets for the Plug type cable sets (Note: Cable sets with the ring lug connectors do not have this option available). The Plug type connector locking system operates on the “push-pull”...

  • Page 94: Wro103

    7.5.2 WRO103 The WR50-13R is available with the optional 10m cable extension sets for the Plug type cable sets (Note: Cable sets with the ring lug connectors do not have this option available). The Plug type connector locking system operates on the “push-pull” principle. It self locks when connected. To disconnect the Plug type connector, push in first then pull out.

  • Page 95: Wro402

    7.5.3 WRO402 The WR14 is available with the optional 10m cable set instead of the 5m standard cable set. The WRO402 consists of the following cables: 2x 10m Potential cables 2x 10m Potential cables 2x 10m Current cables Channel 1 Channel 2 When ordering optional WRO402 with a new system, the standard 5m cable set is omitted.

  • Page 96: Technical Specifications

    8 Technical Specifications 8.1 WR100 Type WR100-12R / WR100-13R Size L: 490 mm (19.3”) W: 436 mm (17.2”) (19” Rack) H: 310 mm (12.2”) Rack Unit: 7U Weight 21.9 kg (48.3 lbs.) Input Power 2 x 90-264 VAC 47-63 Hz, 2 Phase plus Neutral (3 kW max.) Output Voltage 0 to 50V DC Test Current...
  • Page 97 Features - Charges inductive loads up to 1500 Henry- Heavy-duty protection circuitry - Simple touch screen operation - Data exchange with an USB-Key - 3 Temperature channels - High power DC Supply (100A/50V) - DC Current adjustable for resistance values from 0.00μΩ to 100kΩ - Fastest Discharge unit on market (more than 10 times faster) - Discharge Indicator –...

  • Page 98: Wr50

    8.2 WR50 Type WR50-12R / WR50-13R Size L: 490 mm (19.3”) W: 436 mm (17.2”) (19” Rack) H: 177 mm (7”) Rack Unit: 4U Weight 16.6 kg (36.6 lbs.) Input Power 90-264 VAC (1.5 kW max.) 47-63 Hz, automatic ranging Output Voltage 0 to 50V DC Test Current...
  • Page 99 Features - Charges inductive loads up to 1500 Henry - Heavy-duty protection circuitry - Simple touch screen operation - Data exchange with an USB-Key - 3 Temperature channels - High power DC Supply (50A/50V) - DC Current adjustable for resistance values from 0.00μΩ to 100kΩ - Fastest Discharge unit on market (more than 10 times faster) - Discharge Indicator –...

  • Page 100: Wr14

    8.3 WR14 Type WR14-R Size L: 395 mm (15.6”) W: 436 mm (17.2”) (19” Rack) H: 177 mm (7”) Rack Unit: 4U Weight 7.9 kg (14.7 lbs.) Input Power 90-264 VAC 47-63 Hz, or 12V DC (charging only) Output Voltage...
  • Page 101 Features - Charges inductive loads up to 1500 Henry - Heavy-duty protection circuitry - Simple touch screen operation - Data exchange with an USB-Key - 3 Temperature channels - High power DC Supply (15A/30V) - DC Current adjustable for resistance values from 0.00μΩ to 100kΩ - Fastest Discharge unit on market (more than 10 times faster) - Discharge Indicator –...

  • Page 102: Interfaces

    9 Interfaces 9.1 Hardware 9.1.1 RS 323 1 x RS 232, 9 Pin 1 x RS 232 (use with serial printer) Pin 2 TxD (WR-> Host) Pin 8 TxD (WR-> Host) Pin 3 RxD (Host-> WR) Pin 7 RxD (Host-> WR) Pin 5 GND Pin 4 GND Pin 1 +5V DC...

  • Page 103: Usb

    9.1.2 USB 3 x USB-Master 1 x USB-Slave (1 x Front panel, (1 x Rear panel) 2 x Rear panel) Standard 1.1 Standard 1.1 Instruction Manual Winding Resistance Meter Page 103 of 139 Type WR100 / WR50 / WR14...

  • Page 104: Extern

    The contact is open when the system is Safe. The contact is closed when the system is Unsafe. Pins 1 and 2 on the Extern connector: These pins are for Raytech Service use. Do not connect anything to these pins!

  • Page 105: Example For Connecting An External Warning Device

    The function for this pins are the same as with the standard type, see chapter 9.1.3.1 Standard type on page 104. Pins 1 and 2 on the Extern connector: These pins are for Raytech Service use. Do not connect anything to these pins!
  • Page 106 If the contact between Pin 5 and Pin 6 is open, the instrument acts as if the emergency stop has been pressed. without external safety circuit with external safety circuit External Safety Interlock Internal Internal Emergency Emergency Signal Signal Install the plug shown to use the instrument without the extended safety circuit. Pin 5 and Pin 6 are shorted together in the plug.

  • Page 107: Appendix

    Appendix Raytech GmbH, Oberebenestrasse 11, CH 5620 Bremgarten, Switzerland...
  • Page 108 A.4 Components of T-Base Pro.....................112 A.4.1 T-Base Pro – totally free..................112 A.4.2 Create your Add-On with T-Base SDK..............112 A.4.3 T-Base Pro Remote Option for Raytech Devices...........113 A.4.4 Proprietary Add-On - Sequence................113 A.4.5 Proprietary Add-On - Remote I/O to external Software.........114 A.5 Graphical User Interface....................115...

  • Page 109: A Raytech T-Base Pro

    A Raytech T-Base Pro A.1 Description T-Base Pro is a powerful tool to remotely control Raytech test instruments, exchange data and analyse measured data. It runs on Windows based PC with a modern graphical user interface which makes it easy and intuitive to operate. Any custom request or special feature can easily be added with a custom Add-On.

  • Page 110: Application Example

    The example shows a powerful measuring system with remote control, data exchange and analysis. Pictured above is the Raytech Automatic Transformer Observing System called ATOS which is fully controlled by the T-Base Pro software. Add-Ons complete the functionality to fit into a transformer manufacturing test flow.
  • Page 111 Access to any data set in this data base is also provided by this Add-On. Add-Ons can be programmed by Raytech, a customer or a third party using the provided Software Development Kit (SDK).

  • Page 112: Concept Of T-Base Pro

    A.3 Concept of T-Base Pro The basic T-Base Pro software is free to everyone. It consists of the Raytech native driver, internal data base, possibilities to create and handle transformers and measurements and, of course, the graphical user interface. A Software Development Kit (SDK) to create your own custom Add-On is also provided.

  • Page 113: T-Base Pro Remote Option For Raytech Devices

    A.4.3 T-Base Pro Remote Option for Raytech Devices The T-Base Pro remote option of Raytech devices can be unlocked by entering a license key. An unlocked device can be remote controlled by a graphical user interface on T-Base Pro. No additional programming is needed.

  • Page 114: Proprietary Add-On - Remote I/O To External Software

    A.4.5 Proprietary Add-On - Remote I/O to external Software This is a basic Add-On provided by Raytech. It calls any program with a parameter on a PC. An XML file as return value is accepted. Instruction Manual Winding Resistance Meter...

  • Page 115: Graphical User Interface

    A.5 Graphical User Interface Raytech T-Base Pro has a modern and comfortable graphical user interface. Some of its components and basic functions are explained in the following pages. Raytech T-Base Pro is a full multi-tasking system. For instance; a measurement with long duration can be started and while it is running, the user can create new profiles, exchange data with other devices, start another measurement and so on.

  • Page 116: Usb Driver For T-Base Pro

    A.6 USB Driver for T-Base Pro The USB Drivers must be activated to allow communicaton between the Raytech instrument and a computer. This is accomplished by entering a simple Service Code: 2001# This is described further in chapter C.4 Raytech USB Driver for T-Base on page 121.

  • Page 117: B Software Development Kit (Sdk)

    Windows Application and Raytech instruments. The SDK with native Raytech USB Driver for Windows provides the OS with full device functionality, appearing to OS as a Raytech USB device. This software can also be used without native Raytech USB drivers to control the device over the standard RS 232 Serial port.

  • Page 118: C Service Mode

    C Service Mode The Service Mode has limited access. There are several codes accessible for setting parameters. From the main screen press 'Setup'. Then in the General screen press 'Service Mode'. Enter the corresponding code or Exit by pressing '#'. C.1 Calibrate Touchscreen The touch screen parameters can be calibrated by the enduser.

  • Page 119: Show Ground Warning

    C.2 Show Ground Warning Enable or disable a safety ground warning message when the instrument is powered on by entering the Service Code 0200# Select Yes to enable the message. Select No to disable the message. If the ground warning message is enabled, it will be displayed at every boot-up of the instrument and the message must be acknowledged to continue.

  • Page 120: Csv Separator

    C.3 CSV Separator For the export of the data in a csv-file you are able to change the separator. You can set the CSV Separator with the following Service Codes: CSV Separator ';' Code 2010# • CSV Separator ',' Code 2011# •...

  • Page 121: Raytech Usb Driver For T-Base

    For the changes to take effect, power down and restart the system. C.4.1 Active Sync for Toolbox Activate ActivSync to work with the previous (older version) of Raytech Toolbox Software. Enter the Code '2000#' to activate ActiveSync. For the changes to take effect, power down and restart the system.

  • Page 122: D Command Syntax

    WR14, WR50, WR100 A description of all commands (90014 Command Set WRxx) is stored on the delivered USB-Key. The newest version can always be downloaded from the internet at www.raytech.ch. Instruction Manual Winding Resistance Meter Page 122 of 139...

  • Page 123: Usb Interface

    D.2 USB Interface Related Firmware 2.7.0.0 and later. A description of all commands can be downloaded from the internet at www.raytech.ch. There you will find the USB-driver and an installation guide. The USB-driver installation is not necessary in order to use the RS 232 serial port for communication with the device.

  • Page 124: E Usb Printer Info

    E USB Printer Info Printer Requirements Languages: - HP PCL - Epson ESC/P 2 - Epson Stylus COLOR - Canon BJ (300 dpi) - Canon BJ (360 dpi) - Epson LX (9-pin) Driver The Printer must conform to Standard USB class 7.1 device. Nearly every Printer conforms as such with the exception of multifunction devices (e.g.

  • Page 125: F Measuring High- And Low-Voltage-Side In Series

    F Measuring high- and low-voltage-side in series It makes sense to measure the high voltage side in series to the low voltage side to magnetize the transformer faster. Always select the 2 windings that are on the same part of the core in the same current direction.
  • Page 126 H3:X1 H1:X2 H2:X3 H3:X3 H1:X1 H2:X2 H3:X3 H1:X1 H2:X2 H3:X1 H1:X2 H2:X3 H0:X1 H0:X2 H0:X3 H0:X3 H0:X1 H0:X2 H0:X2 H0:X3 H0:X1 H0:X1 H0:X2 H0:X3 H0:X1 H0:X2 H0:X3 H0:X0 H0:X0 H0:X0 H3:X1 H1:X2 H2:X3 H3:X3 H1:X1 H2:X2 Instruction Manual Winding Resistance Meter Page 126 of 139 Type WR100 / WR50 / WR14...
  • Page 127 Current Connection Potential Connection Transformer type Channel 1 Channel 2 Current + Jumper Current - Pri. Sec. Vector H3:X1 H1:X2 H2:X3 H3:X3 H1:X1 H2:X2 H3:X2 H1:X3 H2:X1 H3:X1 H1:X2 H2:X3 H3:X1 H1:X2 H2:X3 H3:X0 H1:X0 H2:X0 H3:X1 H1:X2 H2:X3 H3:X3 H1:X1 H2:X2 H0:X1...

  • Page 128: G Measuring With 2 Wr-Meters At The Same Time

    G Measuring with 2 WR-Meters at the same time It is possible to measure the high and the low voltage side of a transformer at the same time utilizing 2 Winding Resistance Meters. This makes sense if you want to have two different measurement currents at the same time between the high and the low voltage side during a Heat Run Test.
  • Page 129 Example: The following is an example of a transformer prepared for a Heat Run testing, utilizing a WR-14 and a WR50, having the following nameplate: 66KV, 78.8A 11KV, 473A At the moment that the source providing power to the transformer to heat it up is switched off, press the Timer on both Winding Resistance meters.

  • Page 130: H Demagnetizing

    H Demagnetizing Energizing magnetized transformers Problems can be created when the core of a transformer becomes magnetized prior to being energized for use. Damage to the insulation and deformation of the windings are two of the most common side effects. Generally, Transformer cores, during operation are magnetized, demagnetized and then magnetized and demagnetized in the opposite direction for each sine wave cycle.
  • Page 131 Equipment required to fully demagnetize a transformer in this manner is large and expensive. A better solution is the new Raytech Winding Resistance Meter, WR-Series. These easy to use systems are recognized throughout the World for Precision Winding Resistance measurements.

  • Page 132: I Multiplexer

    Raytech Multiplexer is designed to drastically reduce cabling time and increase test performance. It is made to be used with Raytech Winding Resistance and Turns Ratio Meters. Any Multiplexer configuration can be easily controlled by a Winding Resistance Meters touch panel or by remote.

  • Page 133: J Warranty Conditions

    J Warranty Conditions Raytech GmbH Switzerland shall at their option and expense, repair, replace any part or parts that may prove to be defective within the warranty limitation period- irrespective of the operating time of the test equipment provided that the cause of the defect occurred prior to the time at which the risk was passed.
  • Page 134 Arbitration All disputes arising out of or in connection with the contract between the purchaser and Raytech GmbH Switzerland and including those regarding the legal validity of this contract and this arbitration clause shall be settled out of court and shall be referred to arbitration for final decision.

  • Page 135: K Error Messages

    K Error Messages Raytech instruments are designed to be precise, rugged and trouble free. In most cases, many operators will never see any error messages. The emergency switch is activated. In this condition it is not possible to start a measurement.
  • Page 136 Attempting to store results to the USB key without any device key (USB key) plugged into the WR-instrument USB port. Plug the USB key in and try again. The following will appear. The data can then be exported. Instruction Manual Winding Resistance Meter Page 136 of 139 Type WR100 / WR50 / WR14...

  • Page 137: L Trouble Shooting

    L Trouble Shooting When all WR series instruments are powered on an internal calibration and check sequence is performed. Upon completion of the check sequence the test set will proceed to the “Main Screen”. Should there be any problem detected with the test set an error message will appear. System does not display anything: 1.
  • Page 138 Erratic or erroneous readings: Possible causes: 1. Test lead damaged or not connected. 2. Poor test lead connection. 3. Poor Mains power source supply. Check extension cords, plugs and cables carefully. 4. Test set attached to a “Live” load or high interference load. 5.

  • Page 139: M Contacts

    M Contacts Raytech Switzerland Your local Representative Raytech GmbH Oberebenestrasse 11 5620 Bremgarten Phone: +41 56 648 6010 Fax: +41 56 648 6011 Mail: welcome@raytech.ch Web: www.raytech.ch Document revision 3.03 Instruction Manual Winding Resistance Meter Page 139 of 139 Type WR100 / WR50 / WR14...

This manual is also suitable for:

Wr100-12rWr100-13rWr50-12rWr50-13r

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