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RMO60TD                                                                                                                                                                           Contents

  

 

 

 
Contents 

 
 

1

 

Introduction ...................................................................................................................................... 3

 

2

 

Safety Instructions ............................................................................................................................ 3

 

3

 

Designated Use ................................................................................................................................ 4

 

4

 

Functionality ..................................................................................................................................... 4

 

5

 

Description ....................................................................................................................................... 7

 

6

 

Getting Started ............................................................................................................................... 10

 

7

 

DV-Win Software ............................................................................................................................ 24

 

8

 

Error Messages .............................................................................................................................. 46

 

9

 

Technical Data ............................................................................................................................... 49

 

10

 

Accessories .................................................................................................................................... 50

 

Manufacturer Contact Information .......................................................................................................... 50

 

 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 

 

Manual Version: RMO60TD. MV.RT6D-8.10 

This Manual refers to the firmware version RT6D-8.10 

IBEKO Power AB 2012 

 
This Manual is a publication of IBEKO Power AB, 181 33 

Lidingö, Sweden. 

 
All  rights  including  translation  reserved.  Reproduction  of  any  kind,  e.g.,  photocopying,  microfilming  or  storage  in 
electronic data processing systems, requires the explicit consent of IBEKO Power AB. Reprinting, wholly or in part, 
is not permitted. 
 
This Manual represents the technical status at the time of printing. The product information, specifications, and all 
technical  data  contained  within  this  Manual  are  not  contractually  binding.  IBEKO  Power  AB  reserves  the  right  to 
make changes at any time to the technology and/or configuration without announcement. IBEKO Power AB is not 
to be held liable for statements and declarations given in this Manual. The user is responsible for every application 
described in this Manual and its results. 
IBEKO Power AB explicitly exonerates itself from all liability for mistakes in this Manual.  
IBEKO Power AB translates this Manual from its source language English into a number of other languages. Any 
translation of this Manual is done for local requirements, and in the event of a dispute between the English and any 
non-English versions, the English version of this Manual shall govern. 
 

Содержание RMO60TD

Страница 1: ...RMO60TD T A P C H A N G E R A N A L Y Z E R W I N D I N G O H M M E T E R Manual ...

Страница 2: ...d This Manual represents the technical status at the time of printing The product information specifications and all technical data contained within this Manual are not contractually binding IBEKO Power AB reserves the right to make changes at any time to the technology and or configuration without announcement IBEKO Power AB is not to be held liable for statements and declarations given in this M...

Страница 3: ...es and currents associated with this equipment and its environment Pay attention to the information provided in the Manual RMO60TD is intended exclusively for the application areas specified in Designated Use The manufacturer and distributors are not liable for damage resulting from wrong usage The user alone assumes all responsibility and risk The instructions provided in this Manual are consider...

Страница 4: ...indicated by the red discharge LED and the beeper Power Supply Supply RMO60TD only from a power outlet that is equipped with protective ground Instead of supplying RMO60TD from phase neutral L1 N A N it may also be supplied from phase to phase e g L1 L2 A B However the voltage must not exceed 240 V AC please refer to the section Technical Data Warning This is a class A product In a domestic enviro...

Страница 5: ... STOP button Automatically after the selected time has expired In both cases upon completion of the test a measured value of the resistance is recorded to pre selected internal memory location Each time the Ω button is pushed results of the resistance the ripple and the test current value are stored into the internal memory of RMO60TD and memory location changes to the next one Minimum measurement...

Страница 6: ...taken when the unit was in a known good condition and comparing with other phases allows for an efficient analysis Disposition of all current ripple changes or of the current flow on the graph depends on a particular transformer and OLTC design so it is always recommended to compare results obtained on the same unit with previous measurements Note In TapC menu only Ch 1 is the active channel Maxim...

Страница 7: ... during resistance measurement in the TapC test Flashes alternately with the green LED during the TapC test Red LED Discharge The red LED just above the red output connector remains lit until the accumulated energy of the measured object is reduced to a harmless level CAUTION Within the period when the discharge LED lights it is prohibited to disconnect measuring cables The discharge diode cannot ...

Страница 8: ...ins power supply 0 In this position RMO60TD is separated from the mains power supply with both poles Earth ground connector For protection against parasitic currents or voltages always connect RMO60TD earth ground connector to protective ground PE Use only the original cable For safety reasons always establish this connection as the first one before you do any other connections and separate this c...

Страница 9: ...hen ENTER to select the Set Time and Date menu Move the cursor to the position of your choice using RIGHT and change the value with ENTER Pressing ENTER to confirm returns you to the Main menu Pressing STOP to cancel returns you to the Main menu Figure 5 3 The Time menu showing RMO60TD s internal time and date ...

Страница 10: ...BED IN THE FIGURE 6 1 DO NOT CONNECT MEASURING CABLES AFTER TEST STARTS DO NOT DISCONNECT ANY LEADS BEFORE THE LED DISCHARGE AND THE BUZZER ARE OFF The Figure 6 2 shows simultaneous testing of both windings high and low on a single phase transformer In such a way it is possible to speed up the measurement when two channels are used to test both windings of the transformer When performing a two cha...

Страница 11: ...y the internal circulating currents settle very quickly to obtain a balance and discharge with the same speed Even if only one side of the transformer needs to be tested connecting both high and low windings in series will speed up the test considerably On Off Connect the earth ground lead first before doing any connections to the test object Connect the mains lead to a mains outlet 100 V 240 V AC...

Страница 12: ...lly switched over to the next memory position The result can be recalled later by selecting that position number Using RIGHT button move the cursor to the test duration position and using UP DOWN select desired value Measuring with RMO60TD Before a test can be started test current memory position and the test duration time need to be defined using the Current menu Once these parameters are defined...

Страница 13: ...splay During discharging process it is not possible to start another measurement Once the test is completed the last measured result will remain registered at a selected memory location 000 499 memory locations Discharge Current The voltage at the RMO60TD output generation is immediately stopped but current still flows because of the inductivity of test objects Because of the enormous amount of en...

Страница 14: ...5 Ω 15 00 Ω 10 mΩ 13 500 mA 20 Ω 20 00 Ω 10 mΩ 14 100 mA 100 Ω 99 99 Ω 10 mΩ 15 50 mA 200 Ω 199 9 Ω 0 1 Ω 16 10 mA 1 kΩ 999 9 Ω 0 1 Ω 17 5 mA 2 kΩ 2000 Ω 1 Ω The highest resolution of the reading is always displayed resistance range selection is performed automatically and therefore is not necessary to be set by the operator Accuracy Typical accuracy of RMO60TD is 0 2 rdg 0 2 FS This accuracy is v...

Страница 15: ...ameters Turn on RMO60TD with the power switch on the back of the test set The display shows the Current menu and the green LED lights up Press SET to go to the TapC menu In the TapC menu define a test current for the test here 10 A The following values can be chosen 1 A 2 A 5 A 10 A 20 A To do so set the value of your choice by means of the UP DOWN buttons In the TapC menu of RMO60TD current outpu...

Страница 16: ...ent is stabilized the device shows test current here 9 98 A and the value of the measured resistance here 567 2 mΩ At the moment the resistance result is stable press Ω to save the resistance result of the Tap Changer starting position The memory position is automatically switched over to the next one and device is ready to record the current ripple During saving the resistance the red LED flashes...

Страница 17: ...own on the display During discharging process it is not possible to start another measurement A properly working tap changer differs from malfunctioning one in a current discontinuity during the tap change by the magnitude of the current ripple value A discontinuity will result in much higher current ripple value 99 or 100 than a properly functioning tap changer Note Current ripple value depends o...

Страница 18: ...ernal memory location to PC will allow transfer of the last test result only Using DV Win software it is possible to draw a graph which represent dynamic resistance during the change from tap to tap refer to section 7 6 6 3 Demagnetization feature Note Before using the demagnetization feature you must unplug the voltage sense cables from the device After the test is done there is a feature to dema...

Страница 19: ...to follow the discharging LED and the buzzer and to be aware of the danger during the discharging process 6 4 Tap Changer Control Unit The external Tap Changer Control cable is used for convenient tap changer testing After the RMO60TD has measured a tap it stands by waiting for the operator to move the transformer tap changer to the next tap position and continue the measurement by pressing OMEGA ...

Страница 20: ...f RMO60TD device to the USB flash drive plug in the USB flash drive into the RMO60TD device and press PRINT button The RMO60TD will display the USB flash drive menu is it is shown on the screen below Move the cursor from the Test Record position to the Test Reading position pressing SET Select the Test Reading Record in between the result will be exported to the USB Flash drive The results that ar...

Страница 21: ...6 Viewing Results of Previous Tests RMO60TD stores up to 500 test results They can be viewed using the Memory menu at memory positions from 000 to 499 Go to Memory menu using SET Selecting a memory position on the Memory menu displays the current fed into the test object the memory position of these results the test object s measured resistance R1 left channel channel 1 or R2 right channel channel...

Страница 22: ...first and last memory position with UP DOWN and press ENTER The results that are located in the range between these memory locations including the chosen memory locations will be printed Note It is not possible to print test results using the built in printer from DV Win Software If printing is attempted the device will be blocked and a reset of the device is necessary Figure 6 29 The Memory menu ...

Страница 23: ...ture there is possibility that a built in thermo switches prevents RMO60TD from overheating The following test duration times can be applied at each test current 30 sec 60 sec 90 sec 120 sec 180 sec 240 sec 300 sec 360 sec 420 sec 480 sec 540 sec 600 sec 660 sec 720 sec 780 sec 840 sec 900 sec 1200 sec 1800 sec 3600 sec unlimited C u r r e n t T e s t Test current A Maximum test duration time min ...

Страница 24: ... grid in the form of a table Saved as a PDF XLS DOC or RTF file Every test reading contains The date and the time of the test The transformer connection if selected The test mode The real test current The measured resistance values The measured voltage values The measured ripple values The transition time values The tap changer positions The memory location 7 1 System Requirements 7 1 1 Minimum Co...

Страница 25: ...MO60TD can be controlled from the PC The test is started by pressing icon Start new test or selecting the Test button and then selecting New test In case that there is some communication problem it is necessary to check the following Is the green led diode on the RMO60TD lit Is the RMO60TD signaling any error Is the serial cable connected tightly Once the communication is successfully established ...

Страница 26: ... as temperature humidity and pressure 7 5 Current Mode The way to measure the winding resistance is described in details in the RMO60TD Manual The winding resistance measurement can be performed using DV Win software If you want to analyze these results later you should save them on the hard disk The table can be saved in various formats including XLS so it can be later used with all Excel functio...

Страница 27: ...possible to set all test current from 4 A to 60 A in 1 A step Resistance compensation Resistance compensation is a feature which enables displaying of measured resistance compensated to reference temperature This feature is available when controlling RMO60TD from the PC Two additional columns of resistance results are displayed in the data table grid denoting the compensated resistance values Defa...

Страница 28: ...is interval DV Win reads the last measured result from RMO60TD and this process repeats at the expiration of the next period Possible interval options are Automatic and Manual By selecting Automatic option and time interval sample time the last measured result will be transferred from RMO60TD to PC at the chosen time intervals By selecting Manual option the last measured result will be transferred...

Страница 29: ...n all the necessary testing information When Save button is selected a new window will appear which shows a report preview In this window various additional data can be added such as company logo and contact information as well as any comments the user wants to add to the report All the data from the grid will be displayed in the report Refresh report button generates a different report preview Ex...

Страница 30: ...ata is saved to Virtual Store directory which is hidden and may prevent user from finding saved files For Windows 7 this is no longer an option We recommend that you save the data in other directories under ownership of the user like Documents or some other user created directory 7 6 Tap Changer Mode Using a PC together with RMO60TD device in the Tap Changer mode it is possible to assess the tap c...

Страница 31: ...aph Graph control window contains options and commands to control graph display Graph is displayed in separate window where user can zoom in and zoom out interesting parts of the graph Test current values are shown on the vertical axis and tap transitions are shown on the graph Before the test is started it is necessary to set the following tap changer parameters Standard tap changer Before the be...

Страница 32: ... Custom tap changer This option is more flexible and intended if you want to manually enter tap positions Notice that the list of tap changer positions shall be comma separated Static resistance graph Selecting Show static resistance graph option enables drawing a graph with resistance value in each tap position It is possible to have a graph of all three phases on the same diagram To do so it is ...

Страница 33: ...isplays results in the results table Tools Options Advanced settings for the tap changer graphic function These settings are recommended for advanced users Test current It is possible in DV Win software to enter test current values in two ways The first way is drop down menu where you can choose test currents like they are set in device 5 mA 10 mA 50 mA 100 mA 500 mA 1 A 2 A 5 A 10 A 15 A 25 A 40 ...

Страница 34: ...ted test current Settings During every tap changer test with DV Win the dynamic resistance graph is automatically generated This graph will be named auto_save_date_and_time tcp and it will be saved in My Documents DV Power RMOT folder by default In case the test is interrupted for any reason this file will show the dynamic resistance graph until the last successfully completed tap changer transiti...

Страница 35: ...nt when R has a value close to zero it means that measured resistance has stabilized Once the resistance is stable the operator has to press OMEGA to record resistance in the first tap changer position Measured resistance value is saved in current memory location and memory location is automatically changed to the next position After the message appears press OK ...

Страница 36: ...anger motor drive unit This feature can be used only during those tests when the RMO60TD unit is controlled by the DV Win software This feature is always active in the DV Win which means that two diagrams will always be visible on the graph When the graph is displayed and R is stable press OMEGA to measure resistance in the new tap changer position Repeat this procedure until you get the diagram f...

Страница 37: ... moment the DV Win stops recording the graph Whenever you release PAUSE the DV Win continues to record the graph transitions dynamic resistance Once the measurement is completed save the data The graph can be saved as the graph with three different resolutions High resolution is 0 1 ms Medium resolution is 1 ms Low resolution is 4 ms The graph analysis The graph can be analyzed online and offline ...

Страница 38: ...the graph Zoom Out To zoom out the graph each click will zoom out the graph for 20 related to the center of the graph Undo To return to previous zoom level Default scale Enables to see complete graph from zero to the maximum value Auto scale Enables to see complete graph from minimum to the maximum value An example of one complete graph is shown on the picture below ...

Страница 39: ...nd dragging the cursor along the graph Using mouse for Zoom function Zoom In Zoom Out function is possible using the mouse If no cursors are displayed then drag around the area on the graph using the left mouse button If cursors are displayed Shift left mouse button is used Using keyboard for Zoom function Zoom In Zoom Out function is possible using the keyboard The up arrow is used to zoom it in ...

Страница 40: ...sistance values in the grid Open 1 In your DV Win program click on the Open tab 2 In the Look in list click the drive folder that contains the file you want to open 3 In the folder list locate and open the folder that contains the file 4 Click the file which you want to open and then click Open Saved files containing graph data can be opened using the Open button and selecting file tcp to open tap...

Страница 41: ... current used for the last test is displayed as a default one The demagnetization is performed by pressing START Note Never remove the current leads during the demagnetization process and always allow enough time for the transformer being tested to completely demagnetize Large transformers can require several minutes to demagnetize During the demagnetization process the transformer will be charged...

Страница 42: ...er the DV Win software allows simple and precise calculation of exact winding resistance values First it is necessary to measure the resistance values between two corresponding terminals of the transformer Three measurements are necessary between U and V U and W and finally between V and W These measurements are performed in the Current tab of DV Win and the results are stored in three different m...

Страница 43: ...he PC The transfer is possible only if the serial port RMO60TD is connected with the appropriate cable to the PC Note OLTC graph or dynamic resistance cannot be downloaded from internal memory of the RMO60TD since they are not saved in the instrument but on a PC hard drive You can select the results you want to transfer from the RMO60TD memory to the PC according to following criteria All All the ...

Страница 44: ...date are going to be transferred to the PC Date range After choosing this option a new window appears It provides a choice to select a time interval when the measurements were done The results obtained during the time period between the chosen dates including the chosen dates are going to be transferred to the PC Current range Selecting this option opens a new window providing a selection of the c...

Страница 45: ...eturn back to the main menu The results table The results from internal memory of RMO60TD are transferred to the PC in the data table the following layout will be displayed Current mode Date and Time the date and the time of the test Current the real test current Voltage 1 the measured voltage on the channel 1 Ch 1 Resistance 1 the measured resistance on the channel 1 Ch 1 Voltage 2 the measured v...

Страница 46: ...t 8 2 Error Message Connection CH1 2 Connection CH1 The Error message Connection CH1 2 is displayed if both CH1 and CH2 are not connected in the Current mode This message is displayed if either or voltage sense cable or both are disconnected either on the device side or the side of the test object The Error message Connection CH1 is displayed only if CH1 is not connected in the TapC mode This mess...

Страница 47: ...ter starting the test error message will not show up and the received results will be erroneous 8 4 Error Message Change Current This message is displayed if during the test the voltage at the test object is too high In this case reduce the test current and repeat the test In case when test voltage is not higher than 10 V per channel but test current is still improperly high for that resistance er...

Страница 48: ...ation The message Check paper is displayed if the printer is out of paper The paper roll should be aligned with the paper intake without horizontal offset and central axis of the paper roll must be parallel with the printer as shown at Figure 8 7 Also pay attention to insert paper in proper way to the printer since it must enter paper intake from the lower side of paper roll In case that the paper...

Страница 49: ...itoring channel Current monitoring resolution 0 1 ms Amplitude resolution 16 bit 9 4 Environmental conditions Operating temperature 10 C 55 C 14 F 131 F Storage temperature 25 C 70 C 13 F 158 F Relative humidity 5 95 non condensing 9 5 Dimensions and Weight Dimensions 450 mm x 175 mm x 320 mm W x H x D 17 72 in x 6 89 in x 12 6 in Weight 13 kg 28 6 lb 9 6 Warranty three years 9 7 Applicable Standa...

Страница 50: ... with TTA clamps S2 10 02BPWC Current connection cable 1 x 5 m 10 mm 2 with TTA clamps CX 05 102XWC Current clamp 30 300A cable set 5 m CACL 0300 00 Cable bag CABLE BAG 00 Optional Article No Current cables 2 x 15 m 10 mm with TTA clamps CS 15 10LMWC Sense cables 2 x 2 x 15 m with TTA clamps S2 15 02BPWC Built in Thermal printer 80 mm PRINT 080 00 Cable plastic case CABLE CAS 00 Test shunt 150 A 1...

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