Raytech TR-Mark III 250V Instruction Manual Download Page 35 | Manualshive

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8.2.1.3 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.

90100-2.20 Instruction Manual TR-MARK III 250V

Page 35 of 68

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Summary of Contents for TR-Mark III 250V

Page 1: ...INSTRUCTION MANUAL ENGLISH TR MARK III 250V Turns Ratio Meter 3 Phase RAYTECH AG Oberebenestrasse 11 CH 5620 Bremgarten Switzerland ...

Page 2: ... Elements Rack 17 6 1 Rack Front Panel Overview 17 6 2 Rack Rear Panel Overview 17 7 Transformer Measurement and Data Structure 18 7 1 Introduction 18 7 2 How it works 18 8 Operating Menu 20 8 1 Main Screen 21 8 1 1 Operating on a simple screen no Transformer Data entered 21 8 1 2 Further Options of Main screen 23 8 1 2 1 Change Test Voltage 23 8 1 2 2 Continuous Measurement and Stop Measurement 2...

Page 3: ...on Interface 53 10 4 1 Hardware Protocol 53 10 4 2 Software Protocol 53 10 4 2 1 Switch to Remote 53 10 4 2 2 Switch to Local 53 10 4 2 3 Syntax of Commands 54 10 5 TR MARK III Remote Commands 54 A Application Notes 57 A A Real Three Phase Voltage Option T Rex 57 A B Current Transformer Testing 58 A B A Introduction 58 A B B Usual Measurement 58 A B C Low Impedance 59 A B D Info 59 A B E CTs with ...

Page 4: ...y 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 110 or 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 Heavy changes may even damage the device GROUND THE INSTRUMENT To minimize shock hazard the instruments Groun...

Page 5: ...ensure proper operation and that safety features are maintained Instruments which appear damaged or defective should be made inoperative and secured against unintended operation until they can be repaired by qualified service personnel DO NOT TOUCH TEST LEADS WHILE TEST VOLTAGE IS ON Your TR MARK III is equipped with 100V and 250V test voltage These voltages can be dangerous to humans animals and ...

Page 6: ...Accessories Instruction 2 paper rolls This manual and 2 fuses 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 90100 2 20 Instruction Manual TR MARK III 250V Page 6 of 68 ...

Page 7: ...figuration of a transformer and performs all required measurements automatically for Voltage Ratio Turns Ratio Current and Phase Displacement The system can operate a full 3 phase testing sequence with a single push button operation Connect the leads Select the transformer configuration then press GO to test Impressive Accuracy The TR MARK III is a high precision fully automatic microprocessor bas...

Page 8: ... free from the transformer while under full voltage measurement Accidental interchanging of the test leads on the High and Low voltage side are also detected and the measurement is safely halted 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 vol...

Page 9: ...n the primary coil to the number of turns in the secondary coil This is an extremely useful device to check 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 It is important to understand that the Nameplate Ratio on most transformers is the Voltage rat...

Page 10: ... when something is wrong Negative reverse polarity hook up is also automatically detected 3 4 3 Transformer Turns Ratio Meter uses A Transformer Turns Ratio Meter is very useful as a tool for investigating problems associated with the core the windings and the tap changer of transformers and should be used for 1 Identify shorted turns and finding turn errors 2 Defective and incorrect tap settings ...

Page 11: ...nit model T Rex in conjunction with the TR MARK III To get further Information on the T Rex please check chapter A A T Rex or contact Raytech to get additional details and information Also current transformers are in effect nothing else than opposite wound voltage transformers Most current transformers can be tested by TR MARK III Please see chapter A B Current Transformer Testing for details abou...

Page 12: ...displayed with some configurations It is OK to run through all the transformer selections with the leads tied together 1 Switch on the instrument 2 In case of New Transformer To repeat last Mesurement tap Select Transformer Type and GO ABC Tap New for a new Test Voltage then touch Go Transformer 3 Press Go ABC or Go to 4 Get the results start a measurement WARNING Do not touch the test clips if th...

Page 13: ... if you need assistance NOTE No extra external leads or jumpers are required when using the TR MARK III All interconnections are made internally Single Phase Transformer Three Phase Transformer The colored leads are marked to indicate to which transformer terminal they must be connected for correct operation For a Single 1 phase transformer or Auto transformer use leads Primary Secondary WIRE COLO...

Page 14: ...or all examples To change the standard in the test instrument please refer to chapter 8 5 3 Standards WARNING BEFORE OPERATING THIS OR ANY OTHER TEST EQUIPMENT READ ALL SAFETY WARNINGS AND UNDERSTAND THEM FULLY DO NOT VARY INPUT VOLTAGE MAINS AFTER POWERING ON TEST SET The TR MARK III auto senses the input mains voltage 110 or 240 VAC 50 60 Hz The TR MARK III then locks in the test voltage range I...

Page 15: ...und 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 2 20 Instruction Manual TR MARK III 250V Page 15 of 68 4 High Voltage Side Connector 5 Low Voltage Side Connector 7 External Tap Changer 6 3 Phase Extension T REX 8 Interface USB and RS232 11 Thermal Printer 10 Display and Touch Panel 9 Safet...

Page 16: ...e see chapter 10 1 Hardware for details Note If the device is supplied with the option extended safety circuit for instance an external safety interlock can be connected here If not a dummy plug as a jumper is needed For details pleas see chapter C Extended Safety Interlock Option 70049 A 5 2 8 Interface RS232 and USB 2 0 Please see chapter 10 1 Hardware for Details 5 2 9 Safety Indicator Green Li...

Page 17: ...ew 90100 2 20 Instruction Manual TR MARK III 250V Page 17 of 68 1 Mains Switch 2 Ground Terminal 3 Emergency Stop 4 High Voltage Side Connector 5 Low Voltage Side Connector 6 3 Phase Extension T REX 7 External Tap Changer 8 Interface USB and RS232 9 Safety Indicator 8 Interface USB 10 Display and Touch Panel 1 Fuse and Mains Input ...

Page 18: ...ader data An attached result contains the measurement of all transformer phases Or to define it more exactly A transformer profile contains Number of winding systems Type of winding systems Test voltage Rated voltages primary secondary tertiary Name plate info name serial number location manufacturer type and remarks Max ratio deviation and standard ANSI IEC Australian A measurement contains Measu...

Page 19: ...t was done and the measurement was attached by touching the save button in main screen In our example now it is the 1st of September And again the transformer is loaded and measurement is done This means that a new measurement data block is created And it is saved and attached by touching save 1 Please see chapter 8 1 2 3 Print and Save Turns Ratio or Voltage Ratio for details 2 Please see chapter...

Page 20: ...rds Main Screen Main Screen Measurement New Info Archive Setup Delete Export Load General License About Clock Cursor Update Language Service Operator Standard Printer Load from Archive Copy Actual Transformer New Transformer New Measurement Diagram Print Result Colours 90100 2 20 Instruction Manual TR MARK III 250V Page 20 of 68 ...

Page 21: ...you will find buttons indications and results Now lets start with the Go buttons Press Go ABC to measure all three phases A B and C in one cycle TR MARK III will display automatically any complete result Finally main screen will appear as followed This is also the display you will find after switching on the instrument if a measurement was finished before it was switched off 90100 2 20 Instruction...

Page 22: ... B and C has its own button Touch one of those buttons to start a single phase measurement In this case no other phase than the chosen one will be tested 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 2 20 Instruction Manual TR MARK III 250V Page 22 of 68 ...

Page 23: ... 1 2 2 Continuous Measurement and Stop Measurement On TR MARK III a running measurement is indicated by a progress bar In this stage the buttons in the lower part of the display disappear and the two buttons Cont and Stop appear Touching Cont continuous will lead to permanent measurement of the marked phase In continuous mode the cont button will convert to a Next Use this button to switch to the ...

Page 24: ...everal measurements see chapter 8 2 4 New Measurement Of course TR MARK III provides conversion of voltage ratio in to turn ratio You can easily switch between these two options Turns Ratio and Voltage Ratio NOTE Never mind about the unfilled buttons We will talk on it later in 8 1 3 2 Turn Ratio and Voltage Ratio 90100 2 20 Instruction Manual TR MARK III 250V Page 24 of 68 Tip here ...

Page 25: ...ass Fail and Transformer Name When in Info Rated Voltage Data are entered Results are automatically checked An indication for pass or fail is displayed for each phase 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 90100 2 20 Instruction Manual TR MARK III 250V Page 25 of 68 When a Transformer Nam...

Page 26: ...ted nominal ratio based on the voltages in the info filed or do you prefer to see the nominal ratio as primary voltage secondary voltage 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 ...

Page 27: ... screen the actual tap step is displayed as a number It is easy to measure through several or all tap steps Besides are buttons to switch one step up or down You may wish to know what for instance tap 5 means in volts Or you would like to switch to the 22kV Tap Both can be done easily by touching the Actual Tap Step Number 3 In the following window tap number and corresponding voltage is displayed...

Page 28: ...How to choose taps by nominal voltage 90100 2 20 Instruction Manual TR MARK III 250V Page 28 of 68 ...

Page 29: ...ormer with taps on both sides The changeable tap step can changed with and as described in chapter 8 1 4 Taps And too as described there you can open a tap changer menu by touching the displayed tap number This menu is also used to change the fixed tap step How to handle primary and secondary taps and nominal voltages 90100 2 20 Instruction Manual TR MARK III 250V Page 29 of 68 Fixed Tap Step Chan...

Page 30: ...ch a transformer You may have asked yourself before what the button on the upper left on main screen is used for And why it is a button and not just a Text The answer is in case of a tertiary winding system it is used to switch between the ratio primary to secondary and primary to tertiary Also take notice of what happens with the tap changer display As explained in chapter 8 1 5 More Taps the fix...

Page 31: ... switch to tertiary winding system Of course you can too assign tertiary tap changer to be changeable It is the same thing as with the secondary winding system 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 changeable 90100 2 20 Instruction Man...

Page 32: ...tton New in main screen is pressed the user is asked what he wants to do by offering the four buttons showed below NOTE Please Check chapter 7 Transformer Measurement and Data Structure for detailed information about data structure of MK III 90100 2 20 Instruction Manual TR MARK III 250V Page 32 of 68 ...

Page 33: ...he menu shown below MARK III will accept it and set the focus automatically to the next input button Touch the button below Utest to choose your test voltage Finally touch GO to get to main screen and start measurement 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 Te...

Page 34: ...to increase or decrease first and last tap step Press OK and chosen taps will be displayed Your Transformer may have taps on the primary and on the secondary winding system Use the same procedure to define the secondary taps 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 2 20 Instruction Manual TR MARK III 2...

Page 35: ...rs 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 2 20 Instruction Manual TR MARK III 250V Page 35 of 68 ...

Page 36: ...emory stick will only be displayed if connected If you are using a firmware version 3 0 97 or higher on a TR MARK III 250V profiles with 250V test voltage can be imported and exported as usual When using an older firmware version or a common TR MARK III the test voltage of a 250V transformer profile will be reduced to an available voltage automatically NOTE Test Voltage will automatically be chang...

Page 37: ...other words a new transformer is created with the same number of winding systems taps winding types and so on You will automatically be asked if you would like to save the actual measurement if you did not yet do so Afterwards you have to enter a new transformer name serial number and if necessary new primary and secondary voltage Or let s say those things that change if you produce a further tran...

Page 38: ...Working with Templates As described in Chapter 8 2 1 New Transformer a new transformer profile can be created as a template What does that mean NOTE Use this option if you have to measure many transformers of the same type 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 Template will automatically be ...

Page 39: ...on these entries Voltages on Tap changers can be defined manually or automatically by a wizard See picture beside Push into the field Add Info This section especially helps to identify a transformer Data like transformer name serial number manufacturer type and so on can be entered and displayed General Maximal Ratio Deviation can be set in this chapter By default it is 0 5 That means if the measu...

Page 40: ...screen from Archive or from Main Screen and if you are the owner of a transformer it will be read only or read write When started from Main Screen in chart Results will be named as actual Result and it will only show the actual result 90100 2 20 Instruction Manual TR MARK III 250V Page 40 of 68 ...

Page 41: ...ap 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 Just push on the filed you like to edit The editor works for designator and voltage 90100 2 20 Instruction Manual TR MARK III 250V Page 41 of 68 Touch here for designator Touch here for voltage ...

Page 42: ... No memory stick connected Memory stick connected Touch here to switch to memory stick Touch the lines to select one or several transformers As soon as one transformer is selected it will be highlighted and function buttons in the bottom menu appear If two or more lines are highlighted Load and Info of course will disappear again 90100 2 20 Instruction Manual TR MARK III 250V Page 42 of 68 Selecte...

Page 43: ... parts General Operators Standard Printer Colors They can easily be selected with the symbol taps on top of the screen The content of this five parts is described in the following chapters 90100 2 20 Instruction Manual TR MARK III 250V Page 43 of 68 ...

Page 44: ...nd off 8 5 1 5 Update As Raytech GmbH always tries to increase comfort and quality of its products sometimes firmware updates may be available Usually they are just automatically installed when connecting an USB memory stick with a new release on it In some cases it may be necessary to initialize the update manually especially if you are up to down grade to an older version Please see appendix D F...

Page 45: ...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 Connect your USB Printer to TR Mark III s USB host connector3 Maybe you would like to print a test page to make sure everything works properly To use the auto print option on the internal printer choose this option in printer menu 8 5 5 Color Two recommended col...

Page 46: ...Panel Display Color LCD 5 7 with back lighting and touch screen Front Panel Sealed Anodized Interfaces USB 2 0 1 host 1 device and RS232 serial 9 Pin Memory Storage Internally stores more than 10 000 test results Temperature field case version Operating 10 C to 55 C Storage 20 C to 70 C Temperature rackmount version Operating 10 C to 44 C Storage 20 C to 70 C Humidity 5 95 relative humidity no con...

Page 47: ...ip IEC 61000 4 11 Measurement Parameters Ratio Resolution 5 Digits Utest Range Accuracy 250V 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 Utest Range Accuracy 100V or 40V 0 8 2000 0 06 Rdg 1 LSD 2001 4000 0 1 Rdg 1 LSD 4001 13000 0 3 Rdg 1 LSD 13000 16000 0 4 Rdg 1 LSD Utest Range Accuracy 10V 0 8 500 0 1 Rdg 1 LSD 501 1000 0 12 Rdg 1 LS...

Page 48: ...ccuracy 40V 0 8 240 0 10 241 2000 0 15 2001 4000 0 20 4001 13000 0 45 13000 16000 0 55 TR Range Accuracy 10V 0 8 60 0 15 61 500 0 25 501 3250 0 55 3251 4000 0 65 TR Range Accuracy 1V 0 8 6 0 15 7 50 0 25 51 325 0 55 326 400 0 65 Accessories Complete cable set of 5 m 16 4 ft cable with an extension cable of 10 m 32 8 Cable carrying bag instruction manual software for data download Options Extended ...

Page 49: ...t 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 90100 2 20 Instruction Manual TR MARK III 250V Page 49 of 68 Pin 2 TxD TR Host Pin 3 RxD Host TR Pin 5 GND Interface Parameters fix not changeable Port RS232 Baudrate 19200Baud Databit 8 Bit Stopbits 1 Bit Parity No Pin 1 trex_D0 Pin 2 trex_D1 Pin 3 trex_Bus...

Page 50: ...export them to devices View measurement data in a table or diagram Control devices by remote option Generate save and print test reports Store all your data in one database ordered by transformers not by measuring method Use powerful search functions to find your measurements quickly Work with a clearly arranged user interface Easily integrate individual software plug ins to expand the T Base Pro ...

Page 51: ...ech Native USB Driver The low level communication is done by Raytech Native USB Driver If it is properly installed the user does not have to care about Windows recognizing TR MARK III on a USB port Raytech devices that are switched to Raytech Driver Mode with service code 2001 will register themselves to a Microsoft operating system You can get and use Raytech Native USB Driver by installing the l...

Page 52: ...ides many embedded commands that can easily be used within a NET language C is recommended Any other command can be sent with the driver send or driver sendAndReceive command NOTE TR MARK III uses the same command set on USB port and on serial interface Fore detailed information please see chapter 10 4 2 Software Protocol document 90101 0 05 Command Set TRMarkIII pdf or contact Raytech Switzerland...

Page 53: ...0 Baud 8 Bit 1 Stop bit no parity 10 4 2 Software Protocol NOTE Required firmware version 3 1 1 0 and later Do not use former Versions for Remote Control Call us for updates 10 4 2 1 Switch to Remote The Device is switched to REMOTE by Command RM Every command which is executing a measurement MA MB MC MF 10 4 2 2 Switch to Local With Command SL Set to Local or with the Local Button on the display ...

Page 54: ...SCII Characters from 0x20 to 0x7f Terminator CR 0x0D or LF 0x0A Answers without data 0 ok ok 1 unkn Syntax Error Answers with data xx Message1 Message2 Message3 CR xx Type of answer the command itself 10 5 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 2 20 Instruction Manual TR MARK II...

Page 55: ...Appendix Turns Ratio Meter 3 Phase Type TR MARK III Raytech GmbH Oberebenestrasse 11 CH 5620 Bremgarten Switzerland 90100 2 20 Instruction Manual TR MARK III 250V Page 55 of 68 ...

Page 56: ...fo 59 A B E CTs with Taps Tapped Secondary 59 B Test Reports 60 B A Internal Printer 60 B B External Printer 61 C Extended Safety Interlock Option 70049 A 62 C A A Look under the Hood 63 C B Dummy Plug Use without external Interlock 63 D Firmware Update 64 E Error Messages 65 F Warranty Conditions 66 G Trouble Shooting 67 H Contacts 68 90100 2 10 Instruction Manual TR MARK III Page 56 of 68 ...

Page 57: ...onship of transformer phases with voltage applied to all three phases simultaneously This is a real condition measurement which allows greater understanding of how the transformer will operate connected to a 3 phase system The T Rex is especially useful for transformers with Phase relationships other than 30 Zig Zag windings Uncentered neutral points Suspected broken damaged or missing core lamina...

Page 58: ...ent transformers the H test leads are connected to the X terminal of the Current Transformer NOTE For CT testing H leads are connected to the X terminal of the Current Transformer A B B Usual Measurement Connect the test leads as shown For the highest accuracy create a new transformer and select CT Use 10V to start Use 40V test voltage for very big ratios only CT is selected for Current Transforme...

Page 59: ...atio in the info field for CTs is defined by Amps Amps Not Volts Volts as it is used for voltage transformers The rest of the Info screen remains the same A B E CTs with Taps Tapped Secondary Current transformers with multiple secondary taps are tested similar to single secondary taps After each specific ratio is tested the H1 or H0 lead can be moved to the next position and that ratio can then be...

Page 60: ...rs show test reports Please see chapter 8 1 2 3 Print and Save Turns Ratio or Voltage Ratio about how to print To use the external instead of the internal printer just connect a printer to USB port of TR MARK III B A Internal Printer 90100 2 10 Instruction Manual TR MARK III Page 60 of 68 ...

Page 61: ...B B External Printer 90100 2 10 Instruction Manual TR MARK III Page 61 of 68 ...

Page 62: ...h voltage off detector could be connected The pins of the Extended Safety Interlock are placed on the extern connector A device with this option can be recognized by having a 6 pin Lemo Extern connector Please see chapter 5 1 and to locate this plug A standard TR MARK III version has a 4 Pin connector as described in chapter 10 1 Pin definition 90100 2 10 Instruction Manual TR MARK III Page 62 of ...

Page 63: ...course when using an 70049 A device that is not connected to en external interlock line the use of a dummy plug is necessary C B Dummy Plug Use without external Interlock As visible in C A A Look under the Hood the Extended Safety Interlock has to be bridged when it is not used Other vice TR MARK III will show the emergency pressed message and remain in a safe mode The Dummy Plug shown below is de...

Page 64: ...his 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 In some cases for instance if you like to downgrade to an older version you will have to start the installing process on your own See the graphics bellow or see chapter 8 5 1 5 Update for detailed information how to do this WARNING DO NOT TURN DEVICES OFF DURING A RUNNING...

Page 65: ...ected by TR MARK III Then this message appears TRex not found You will see this message when trying to measure with a T Rex which is not connected 3P 3P only with Voltage Ext Another message that may appear when trying to start a T Rex measurement without having it properly connected Overcurrent As the message says a too high current is flowing on the H side Check test setting and all connections ...

Page 66: ...ty The foregoing warranty shall not apply to defects resulting from improper and unauthorized modifications or misuse and abuse of the product negligence alteration modification faulty installation by the customer customer s agents or employees Attempted or actual dismantling disassembling service or repair by any person firm or corporation not specifically authorized in writing by Raytech GmbH Sw...

Page 67: ...R MARK III 250V has been designed and tested to be immune against electromagnetic disturbances However in rare cases in presence of strong radio frequency electromagnetic field turn ratio measuring accuracy may be degraded depending on field amplitude and frequency band In this case try to keep the instrument away from disturbances source and or change cables position For more information please c...

Page 68: ...H Contacts Raytech Switzerland Your local Representative 90100 2 10 Instruction Manual TR MARK III Page 68 of 68 ...

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