INSTRUCTION MANUAL
ENGLISH
mini-ATOS
mini Automatic Transformer Observation System
RAYTECH AG
, OBEREBENESTRASSE 11, CH-5620 BREMGARTEN, SWITZERLAND
Страница 1: ...INSTRUCTION MANUAL ENGLISH mini ATOS mini Automatic Transformer Observation System RAYTECH AG OBEREBENESTRASSE 11 CH 5620 BREMGARTEN SWITZERLAND ...
Страница 2: ...3 Introduction 9 4 Calculation and Measurement Methods 10 4 1 Turns Ratio Measurement 10 4 1 1 Principle 10 4 1 2 Voltage Ratio and Turns Ratio 10 4 1 3 Relative Error 12 4 2 DC Resistance Test 13 4 2 1 Principle 13 4 2 2 Temperature Correction 14 4 2 3 Resistance Deviation 15 4 3 Demagnetization 16 4 3 1 Raytech SPP Demagnetization Method 17 4 3 2 Three Phase Transformer Demagnetization 18 4 4 Ma...
Страница 3: ...e and Time 28 7 4 2 Regional 28 7 4 3 Naming Scheme 29 7 4 4 Networking 29 7 4 5 Remote Access 30 7 4 6 Maintenance 31 7 4 7 License 32 8 Test Objects 33 8 1 Power Transformer 33 8 1 1 Windings 34 8 1 2 Winding Configuration Autodetect 37 8 1 3 Nameplate 38 8 1 4 General 39 8 1 5 Tap Changer 41 8 1 6 Electrical Values 42 9 Inspection and Test Plan 46 10 Measurements 49 10 1 Turns Ratio 49 10 1 1 T...
Страница 4: ... Remote Access Instruction 74 13 Interfaces 76 13 1 USB 76 13 2 Ethernet 76 13 3 External 4pins version 77 13 4 External 6pins version 78 13 5 Tap Control 79 14 Technical Specifications 80 14 1 General 80 14 2 Accuracies 81 14 2 1 Turns Ratio Measurement 81 14 2 2 Resistance Measurements 82 14 2 3 Temperature Measurement 82 14 3 Standards and Approvals 83 A Warranty Conditions 86 A 1 Limitation of...
Страница 5: ...operation The measurements should never perform by only one operator without the presence of other personnel or supervisors Someone else other than the main operator must be aware and easily accessible to help in case of an emergency 1 2 High Voltage Apparatus Accessibility During the Tests Persons directly and indirectly engaged in the operation of this test equipment should keep clear of all hig...
Страница 6: ...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 Instruments which appear damaged or defective should be made inoperative and secured against unintended operation until they can be repaired by qualified service personnel 1 8 Do Not Operate in A Conden...
Страница 7: ...ge 7 of 92 Figure 1 The unsafe area must be specified and restricted with barrier tapes or ropes Always keep distance from the test object during the tests and the unsafe area must be specified and restricted with barrier tapes or ropes WARNING ...
Страница 8: ...ction Manual mini ATOS Page 8 of 92 2 Unpacking The Instrument Cable Bags Measuring Cables H H0 H3 Measuring Cables X X0 X3 Safety Ground Cable Power Cord Spare Paper rolls Fuses USB Memory Stick Instruction Manual Pre ...
Страница 9: ...ic Resistance Measurement DRM Turns Ratio TR Frequency Response of Stray Losses FRSL Magnetic Balance and other diagnostic parameters With the built in fully automatic multiplexer only a one time connection is required for nearly all functions which saves a considerable amount of time The portable rugged case is perfect for use anywhere onsite or in a laboratory It is specially designed for fast a...
Страница 10: ...i ATOS turns ratio measuring circuit The excitation current is also measured during the turns ratio test The value of the excitation current has a direct relation to the test voltages A higher test voltage leads to a higher excitation current Additionally the phase angle between the applied voltage and the transformed voltage is also measured and is included in the results 4 1 2 Voltage Ratio and ...
Страница 11: ...20000V are written as primary and secondary rated voltages respectively on the nameplate The rated values are always line line voltages and the voltage ratio can simply calculate as follow 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 𝑅𝑎𝑡𝑖𝑜 𝑅𝑎𝑡𝑒𝑑 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 𝑃𝑟𝑖𝑚𝑎𝑟𝑦 𝑅𝑎𝑡𝑒𝑑 𝑉𝑜𝑙𝑡𝑎𝑔𝑒 𝑆𝑒𝑐𝑜𝑛𝑑𝑎𝑟𝑦 120000 20000 6 Turns ratio is different from the voltage ratio because the low voltage side connection is Wye and line line rated voltage is different ...
Страница 12: ...of the measured value and the reference rated value using the following formula 𝐸𝑟𝑟 𝑇𝑅𝑚𝑒𝑎𝑠 𝑇𝑅𝑟𝑎𝑡𝑒𝑑 𝑇𝑅𝑟𝑎𝑡𝑒𝑑 100 The calculated error can be compared with a limit value Generally there are limit values for the turns ratio relative error A typical limit value according to IEEE C57 12 00 2010 is 0 5 This limit value can be used to judge if the test is passed or failed ...
Страница 13: ...multaneously The maximum output voltage and current of each power supply are different to provide optimal output for each side One power supply has more output voltage which is suitable for the high voltage side with a bigger resistance and the other one has more output current which is suitable for the low voltage side with a smaller resistance During the measurement because of the high inductivi...
Страница 14: ...𝑑 𝑅𝑒𝑠𝑖𝑠𝑡𝑎𝑛𝑐𝑒 𝑅𝑚 Ω 𝑀𝑒𝑎𝑠𝑢𝑟𝑒𝑑 𝑅𝑒𝑠𝑖𝑠𝑡𝑎𝑛𝑐𝑒 𝑇𝑠 𝐶 𝐷𝑒𝑠𝑖𝑟𝑒𝑑 𝑅𝑒𝑓𝑒𝑟𝑒𝑛𝑐𝑒 𝑇𝑒𝑚𝑝𝑒𝑟𝑎𝑡𝑢𝑟𝑒 𝑇𝑚 𝐶 𝐴𝑐𝑡𝑢𝑎𝑙 𝑇𝑒𝑚𝑝𝑒𝑟𝑎𝑡𝑢𝑟𝑒 𝑎𝑡 𝑡ℎ𝑒 𝑡𝑖𝑚𝑒 𝑜𝑓 𝑅𝑒𝑠𝑖𝑠𝑡𝑎𝑛𝑐𝑒 𝑀𝑒𝑎𝑠𝑢𝑟𝑒𝑚𝑒𝑛𝑡 𝑇𝑘 𝐶 𝐶𝑜𝑟𝑟𝑒𝑐𝑡𝑖𝑜𝑛 𝑇𝑒𝑚𝑝𝑒𝑟𝑎𝑡𝑢𝑟𝑒 Correction values for copper and aluminum are Table 1 Cu and Alu temperature correction values Material 𝑻𝒌 𝑪 Copper 234 5 Aluminum 225 Alloyed aluminum Can be up to 230 The other form of temperature correction formula is 𝑅𝑚 𝑅𝑠 1 𝛼 𝑇𝑚 𝑇𝑠 ...
Страница 15: ...𝑣𝑔 100 𝑅𝑑𝑒𝑣 𝐵 𝑅𝐵 𝑅𝑎𝑣𝑔 𝑅𝑎𝑣𝑔 100 𝑅𝑑𝑒𝑣 𝐶 𝑅𝐶 𝑅𝑎𝑣𝑔 𝑅𝑎𝑣𝑔 100 The calculated deviations can be compared to a maximum deviation limit value to find out if the result is passed or failed There is a limit in IEEE C57 12 152 2013 which is 2 However other values are also possible with agreements Please note that if the temperature of phases is not the same during the resistance measurements the deviation valu...
Страница 16: ...is performed using the mini ATOS Figure 5 B is a closer look at the same curve The depicted parameters are described below Ф 𝑉𝑠 Magnetic flux with the unit of Volt seconds or Weber It will be measured as integral of the inductive part voltage over time The value of the Vs is related directly to the Magnetic flux density with the unit of Tesla by considering that the cross section area of the trans...
Страница 17: ...erform the final cycles of the demagnetization called SPP Smart Pattern Predictor which is based on pattern recognition This is very useful when special measurements like SFRA are desired to perform This method recognizes the properties and shape of the demagnetization of previous cycles to achieve a very small remanence the shape and properties of the final cycles are predicted and then the final...
Страница 18: ...k of high inrush current However it is not always like this Sometimes the demagnetization should be performed from all three phases The following items can be a reason to consider a three phase demagnetization When the core consists of 4 limbs or 5 limbs When the transformer is a shell type When the aim is to achieve a very small residual magnetism to perform special tests like SFRA The mini ATOS ...
Страница 19: ...m of Table 2 Table 2 Typical magnetic balance pattern of a core type transformer with 3 limbs Phase 𝑨 𝑩 𝑪 𝑨 𝑉𝐴 𝐴 100 𝑉𝐴 𝐵 𝑀 𝑉𝐴 𝐶 𝑁 𝑩 𝑉𝐵 𝐴 50 𝑉𝐵 𝐵 100 𝑉𝐵 𝐶 50 𝑪 𝑉𝐶 𝐴 𝑁 𝑉𝐶 𝐵 𝑀 𝑉𝐶 𝐶 100 The sum of 𝑀 and 𝑁 should be almost 100 and it is supposed to 𝑀 be greater than 𝑁 𝑀 𝑁 100 𝑀 𝑁 The index TCI Transformer Core Imbalance introduced by Raytech for easy diagnosing of magnetic balance test results It is c...
Страница 20: ... measurements Always keep distance and never touch the test object Check the nameplate information of the transformer If the nameplate is missing it is still possible to test the transformer by a trial and error method The mini ATOS test set is designed to detect errors in transformer hook ups Contact Raytech Service Support department if you need assistance Table 3 Test cables connection guide fo...
Страница 21: ...three 3 phase transformer Voltage Level mini ATOS Test Cable Label Transformer Marking Standard IEEE IEC BS Primary H1 H1 1U U A H2 H2 1V V B H3 H3 1W W C H0 H0 1N N N Secondary X1 X1 2U u a X2 X2 2V v b X3 X3 2W w c X0 X0 2N n n Tertiary X1 Y1 3U 3U 3A X2 Y2 3V 3V 3B X3 Y3 3W 3W 3C X0 Y0 3N 3N 3N ...
Страница 22: ...ent c Press the Mains Switch to turn the mini ATOS ON OFF 6 2 Ethernet Interface This port can be used for remote access Please see chapter 11 for more information about the remote connection 6 3 USB Interfaces 1x Host 2x Device 1x USB Host 2x USB Device 6 4 Safety Indicators Green Light ON The system is in safe mode Ready for handling test leads and connections Red Light ON Unsafe mode Don t remo...
Страница 23: ...es To connect the instrument to the high voltage side terminals of a test object 6 10 Thermal Printer Allows you to quickly get your results on paper by using the built in thermal printer 6 11 Tap Control This port is used for an external connection to a tap changer dry contact With this connection the tap position can be changed from the mini ATOS 6 12 External This port is multi functional and c...
Страница 24: ...ect Please see chapter 8 1 for more details Access all test object templates and manage them Please see chapter 7 3 for more details List of favorite templates to define a test object from a template See chapter 07 3 to find out how to define a template To remove safely the USB stick A test object template item Settings button to access the device settings Please see chapter 07 4 for more details ...
Страница 25: ...tion menu Search tool to find a test object from the list The search word can be the name serial number or winding connection type Open the test object To import a test object from the connected USB stick To delete the test object To create a new test object To edit the test object Test object record To clone the test object The test object winding configuration To create a template from the test ...
Страница 26: ...n test object quick access The measurement setting To generate and export the PDF report The number of measurements which were performed and the result was passed To jump to the test plan page and perform the measurements The total tests possible for the measurement To add a new inspection To open the result view in graph and table The list of inspections sorted by date To open the option menu The...
Страница 27: ...age Test plan is also a part of the template It is possible to adjust the test plan including the measurement settings Figure 9 Test object templates To activate the multi select to delete more templates together When it is marked it will be shown on the home screen Sort the template items based on various fields To open the option menu Search tool to find a template from the list The search word ...
Страница 28: ...stment in Setting 7 4 2 Regional The user interface language default temperature unit format numbers decimal separator and CSV separator can be selected in the Regional tab Figure 11 CSV separator is helpful for software like excel to correctly show results as data columns from the exported results in CSV format Depending on the PC language sometimes comma is the separator and sometimes semicolon ...
Страница 29: ... are different systems of terminal naming for each test object There is also a custom naming scheme which can be easily edited to use it later Figure 12 Default Naming Scheme adjustment 7 4 4 Networking In this tab Figure 13 you can adjust the networking settings which are required for remote access For more information about remote access please see chapter 11 Figure 13 Network configuration ...
Страница 30: ...ateway Here you can configure the network manually by entering the required fields 7 4 5 Remote Access Here there are remote access settings which are required to be adjusted Figure 14 To see the remote access guide please see chapter 11 Figure 14 Remote Access settings Enable Use this toggle button to enable or disable remote access Access Code Because of security an access code is always require...
Страница 31: ...ware Update When a new software or firmware update is available you can copy the update file to a USB stick and connect it to the device Then tap the Run update button and wait until the process is finished Please do not turn off the device or unplug the USB stick during the update The update can take up to 10min Service Codes When there is a problem or error in the device the Raytech service team...
Страница 32: ...ptional measurement feature you have to add a license code in this tab Figure 16 Just tap the Add button and enter the license code Each license may be valid for a limited time like 10 days or can be unlimited To test a feature you can ask Raytech for a trial license to activate the feature temporarily Figure 16 License manager ...
Страница 33: ...of the test object which is helpful for easy identification The system always assigns an automatic name at the beginning which consists of the test object type date and time This name can be easily changed by tapping the pencil symbol or the name Save Tap the Save icon to store all the entered test object data and go to the test plan Cancel By tapping this icon you can cancel the test object defin...
Страница 34: ...ot possible to make changes in the winding information Figure 18 Test object windings tab You can select the winding type by tapping the winding connection symbol for each winding side The winding type can be from any winding type of Table 5 Table 5 Winding types and symbols Phases Type Letter Primary Letter non Primary Symbol 3 Phases Delta D d Star with accessible neutral YN yn Star Y y Zigzag w...
Страница 35: ...r 08 1 2 for more details For all non Primary windings the vector group must be correctly selected It is really important to make sure that the vector group is correct because the switching function of the automatic multiplexer is based on the vector group and winding type Detect Vector Group It is also possible to detect just the vector group quickly by using this button It detects only the vecto...
Страница 36: ...e 20 the tap numbers can be easily adjusted You can also enter the number of taps directly with the virtual keyboard by tapping the taps number directly Figure 20 Tap count configuration window When there is a tertiary winding the check box can be selected and like the secondary winding the required information can be entered Figure 21 Figure 21 Defining a transformer with a Tertiary winding ...
Страница 37: ...dow will be opened Figure 22 To perform the transformer detection tap the Start and wait until mini ATOS find the configuration Figure 22 Winding configuration autodetect window The actual configuration is written on the left side and the detected configuration will be written on the right side See Figure 23 When mini ATOS find more winding configurations a list of them will be provided and you ca...
Страница 38: ...When nameplate data is available it can be entered in this part By tapping each text field the keyboard will be opened and the data can be easily entered The nameplate data is optional to enter It is also possible to add this information later by editing the test object Figure 24 Test object Nameplate tab ...
Страница 39: ...rmation can be entered Naming Scheme Generally there are different systems of terminal naming for each test object The naming scheme of the current test object can be selected here When a custom naming scheme is required it can be easily defined in the Naming Scheme window Figure 26 which can be opened using the pencil icon Figure 26 Custom Naming Scheme window ...
Страница 40: ...r more details about the temperature correction principle please see chapter 4 2 2 Temperature Coefficient The temperature coefficient which is required for the temperature correction can be set here for each winding If a custom coefficient is required the value can be added using the plus icon For more details about the temperature coefficient please see chapter 4 2 2 ...
Страница 41: ...TC and OLTC DETC DeEnergized Tap Changer which can operate only when the transformer is not energized and OLTC On Load Tap Changer which can operate even when it is energized It is also very important to select the tap changer type correctly For OLTC it is possible to measure the DC resistance for several taps please see chapter 11 without turning off the DC power supply Tap Control If you connect...
Страница 42: ... also possible to use wizards to enter the values easier Following example by using the power transformer with tap information according to Table 6 explain how they work Table 6 Example power transformer information Primary Taps Secondary Taps Label Voltage V Label Voltage V Label Voltage V Label Voltage V 1 70350 16R 14399 5R 13499 6L 12599 2 68675 15R 14317 4R 13417 7L 12517 3 67000 14R 14235 3R...
Страница 43: ...igure 29 shows how to fill the form for the secondary side of the example Some transformers have tap changer changeover with more than one tap with the same voltage in the middle In such cases the number of changeover positions with the same voltage has to be also entered To match the calculated values to nameplate values it is also possible to say the wizard how to round the calculated values The...
Страница 44: ...p or per step The amount can be determined from the nameplate by subtracting the voltage values of two consecutive taps which are usually written on the nameplate Figure 30 shows how to fill the wizard for the primary side of the example When the tap changer is located on the primary side usually the nominal voltage of the first tap is the highest voltage and for the other taps the nominal voltage...
Страница 45: ... is used to choose the system of labelling When there are changeover positions their labels can be adjusted by using the Changeover suffix item When it is required by editing the Offset it is possible to start the labelling from any number Finally there is a Preview which shows how will be the labels by using the wizard Figure 31 Labels wizard window Figure 32 shows also how to fill the wizard for...
Страница 46: ... enable the edit mode Figure 34 to adjust the order of measurements and add or remove them by tapping the edit icon You can touch and hold the move icon and try to change the position of each measurement item In each measurement item it can be seen that the measurement Settings and the number of the tests performed from all the tests possible to perform are written When you tap the measurement set...
Страница 47: ...o see the test plan for each one the desired pair of windings must be selected from the drop down list located above Figure 35 This drop down list is only visible when there is a tertiary winding Note that when you select another pair of winding the measurement setup must be changed according to chapter 5 1 Figure 35 Test plan for Pri Ter pair which is selected from the drop down list located abov...
Страница 48: ...ting icon on the top you can open the Inspection Information Figure 36 Here it is possible to edit the inspection name enter the weather condition and write additional notes like the reason for the inspection as remarks for later references Figure 36 Inspection information ...
Страница 49: ...ter 10 1 2 The test current in mA The selected test voltage that applies on the primary side during the measurement The measured angle between the applied voltage and the transformed voltage The secondary side rated voltage The rated turns or voltage ratio Change between voltage or turns ratios The rated voltage of each tap position The actual tap position of the selected view mode and to change i...
Страница 50: ...top automatically The instrument keeps performing the test on the phase under the test until the user action The stop button can be used to stop the test Please note that it takes time to stop the test 10 1 1 Table view modes When both primary side and non primary side of transformer windings have tap positions it is not easy to show all measurements for all tap combinations in one table Hence to ...
Страница 51: ... taps there is table with 5 primary taps 33 tables each 5 taps The secondary selected tap is shown on the top and it is possible to change it Figure 39 Turns ratio primary view mode Figure 40 shows on the other hand the secondary view mode This time for each of the primary taps there is table with 33 secondary taps 5 tables each 33 taps The primary selected tap is also shown on the top and it is p...
Страница 52: ...acceptable ratio error can also be adjusted by editing the Max Error field The default value according to standards is 0 5 Figure 41 Turns ratio settings Auto Detect Voltage It is also possible to find out what is the suitable test voltage for a specific test object Just tap the search icon and run detection in the Auto detect voltage window Figure 42 Figure 42 Turns ratio suitable test voltage au...
Страница 53: ... Figure 43 shows the turns ratio graph view From the drop down list on top right it is possible to select various graphs These are turns ratio voltage ratio and error graph Figure 43 Turn ratio graph results view Figure 44 shows also the turns ratio table results By tapping the TR or the Rated TR column header it is possible to switch between turns ratio and voltage ratio values Figure 44 Turns ra...
Страница 54: ...se or phase to neutral measurement when possible Test settings The actual test current which was used The selected current that injects into the selected winding side The measured temperature during the measurement or the reference temperature when resistance is corrected To enable or disable the temperature corrected resistances view To see the actual measurement value of each temperature measure...
Страница 55: ...the currents By tapping the continuous button2 the test mode changes from single measurement to continuous mode and the test will not stop automatically The instrument keeps performing the test on the phase under the test until the user action The stop button can be used to stop the test Please note that it takes time to discharge and stop the test 2 When the ambient temperature is above 40 C Cont...
Страница 56: ...p changer The selected current that injects into the primary winding side The selected current that injects into the non primary winding side The measurement table view of the primary side The measurement table view of the non primary side To enable or disable the temperature corrected resistances view for primary To enable or disable the temperature corrected resistances view for non primary To t...
Страница 57: ...condition is a reference for the device to decide if the resistance value during a measurement is considered stable or not For example 0 1 5s means that if the resistance fluctuations keep less than 0 1 of the average value continuously for more than 5 seconds it will be considered stable The maximum acceptable deviation value Please see chapter 4 2 3 for more information Do not select currents mo...
Страница 58: ...lue must be also entered manually The mini ATOS use the average of all temperature values for the temperature correction In the actual temperature window Figure 50 which you can open from the measuring screen you can see the actual temperature values Here T1 is plugged in and also activated in the setting T2 is activated but not plugged in In this case the mini ATOS shows an error message after st...
Страница 59: ...re 51 shows the Primary Ph Ph winding resistance graph view From the drop down list on top right it is possible to select also other graphs Figure 51 Winding resistance graph results view Figure 52 shows also the Primary Ph Ph table results By tapping the DevCorr column header it is possible to switch between deviation for measured values or temperature corrected values Figure 52 Winding resistanc...
Страница 60: ...nd external temperatures The actual tap position of primary side The measured resistance To turn On or turn Off the power supply for the primary side It is also possible to select Charge mode In charge mode the power supply injects current to the primary side to increase the transformer charging speed But no resistance will be measured The actual test current To see the actual measurement value of...
Страница 61: ...ch the cables and test clamps The highlighted row shows the actual parameters value The output current bars show what is the actual value of output current for each channel and which terminals are used to inject the currents The actual elapsed time The stop button can be used to stop the test Please note that it takes time to discharge and stop the test After measurement stop it takes time to disc...
Страница 62: ...al measurement when possible To select the current that injects into the primary winding side and also to turn On or turn Off the power supply for the primary side It is also possible to select Charge mode In charge mode the power supply injects current to the primary side to increase the transformer charging speed But no resistance will be measured To select the current that injects into the seco...
Страница 63: ... the time duration between each two measurement points To set the number of measuring points Total measurement duration which is calculated by timing measuring interval and measuring points The temperature settings of the winding resistance interval are the same as winding resistance settings Please see chapter 10 2 2 Temperature settings part to see the explanation ...
Страница 64: ...esult view will be opened Result view includes graphs and table Figure 57 shows the Primary winding resistance graph view From the drop down list on top right it is possible to select also other graphs Figure 57 Winding resistance interval graph results view Figure 58 shows also the Primary table results Figure 58 Winding resistance interval table results view ...
Страница 65: ...ack to the test plan page Open test object quick access Zoom out Test settings Zoom in The demagnetization curve Zoomable with two fingers Maximize the graph view The adjusted start current that injects into the primary winding Centre the graph view Number of cycles already performed from all cycles Automatic adaptive graph view The measured saturation flux The button to run the test The measured ...
Страница 66: ...tion curve marked in green The first point initial remanence flux of the demagnetization curve marked in red The actual demagnetization current during the measurement The actual flux during the measurement The stop button can be used to stop the test Please note that it takes time to discharge and stop the test After measurement stop it takes time to discharge the test object Wait until the device...
Страница 67: ...aximum output voltage is 12VDC If the test object is a large power transformer the demagnetization will be faster if the currents up to 7 5A will be selected The number of steps can be also adjusted from Very Fast 8 Steps to Very Fine 20 Steps Normally to reach a smaller final remanence flux and hence better demagnetization quality you can select more steps However since the mini ATOS use the Rayt...
Страница 68: ...ter 4 4 for more information Back to the test plan page Open test object quick access Showing the TCI value on a colored bar Test settings Print the results by using the thermal printer The selected test voltage The Phase which the voltage applied to Open the detailed results in table view or graphs The output current during the test Start test button The phase which the voltage measured and the v...
Страница 69: ...uring the measurement Figure 63 Magnetic balance test during a measurement The warning symbol shows that it is not safe to touch the cables and test clamps The highlighted cell shows the actual measurement The stop button can be used to stop the test Please note that it takes time to stop the test ...
Страница 70: ...0 5 1 Magnetic Balance Settings Figure 64 represents the magnetic balance measurement settings Figure 64 Magnetic balance measurement settings For magnetic balance the applying voltage can be selected up to 50VAC Please note that the test voltage is at 10Hz ...
Страница 71: ...g the Results button in the measurement view the result view will be opened Result view includes graphs and table Figure 65 shows the graph view Figure 65 Magnetic balance graph results view Figure 66 shows also the table results including the colored bar Figure 66 Magnetic balance table results view ...
Страница 72: ...inding resistance measurement there is ABC CBA ABC item which is the optimized three phase version which save time in charge and discharge Direction The tap changing direction should be selected here You can select either the direction to the first tap or to the last tap Tap Changing Automatic For automatic tap changing the mini ATOS tap control output must be connected to the tap changer control ...
Страница 73: ...nual During the tap changing the tap switch window Figure 69 will ask to change the tap position manually and confirm when it is changed To confirm it is possible to tap the confirm button on the screen and it is also possible to use a hand switch which must be connected to the mini ATOS External terminal Figure 69 Tap Switch window during manual tap changing ...
Страница 74: ...B B cable Or by using the network cable Make sure that the networking settings are adjusted correctly Please see chapter 7 4 4 3 From the home page or the main menu tap the logout icon to see the select profile page like Figure 70 4 Activate remote access on the select profile page If you didn t input the access key manually in the settings you will see then the auto generated access key Figure 71...
Страница 75: ... auto generated key on the mini ATOS display Figure 72 Remote access login page Notes You can always cancel the remote connection from the device Only one active session is possible at once If the access code is auto generated by entering a wrong access code each time a new code will be generated ...
Страница 76: ...e the device and store load measurement data from USB memory sticks It is also possible to connect a USB mouse and a USB keyboard for easier input The Slave connector can be used to connect the mini ATOS to a PC or to connect a USB printer USB Master Type A x2 USB Slave Type B 13 2 Ethernet The Ethernet port can be used to connect the mini ATOS to a network to enable the remote connection RJ45 ...
Страница 77: ...ulti functional and consists of the following functions Hand switch for tap changing Raytech warning lamp When both hand switch and warning lamp is required then a splitter cable is necessary as follows which can be ordered as an optional item Cable adapter hand switch warning lamp 4pin to 2x 4pin ...
Страница 78: ...afe to perform a measurement If they are not shorted it is not possible to start a measurement If the connection open during a measurement measurement will be stopped automatically When external safety interlock and either hand switch or warning lamp is required then a splitter cable is necessary as follows which can be ordered as an optional item Cable adapter external 6pin to 6pin 4pin When exte...
Страница 79: ...to a tap changer dry contact With this connection changing the tap position can be done from the mini ATOS Two connectors are for changing the tap position in up direction and the other two are for changing the tap position in down direction The cables are marked with labels The maximum input voltage is 240VAC Cat II ...
Страница 80: ...ltaneously Max test voltage DC 50VDC 100VDC with automatic booster Temperature measurement range 20 C 4 F to 110 C 230 F Display 7 TFT Color LCD Input devices Capacitive touch screen support mouse and keyboard Front panel Sealed anodized Interfaces 3 USB 2 0 full speed 2 hosts 1 device and Ethernet Printer Internal 1 9 thermal printer Operating temperature 10 C 14 F to 55 C 131 F Storage temperatu...
Страница 81: ...LSD 5 Digits Turns Ratio 100VAC 55Hz 0 8 200 0 04 Rdg 1 LSD 5 Digits 200 5000 0 10 Rdg 1 LSD 5 Digits 5000 20000 0 40 Rdg 1 LSD 5 Digits Turns Ratio 40VAC 55Hz 0 8 200 0 04 Rdg 1 LSD 5 Digits 200 5000 0 06 Rdg 1 LSD 5 Digits 5000 20000 0 40 Rdg 1 LSD 5 Digits Turns Ratio 10VAC 55Hz 0 8 200 0 06 Rdg 1 LSD 5 Digits 200 5000 0 10 Rdg 1 LSD 5 Digits Table 8 Other AC parameters accuracy Parameter Range...
Страница 82: ...es with 12V 30A DC power supply Itest Range Accuracy Resolution 25 0 30 0A 0 00µΩ 0 48Ω 0 10 Rdg 0 4µΩ 5 Digits or 0 01µΩ 20 0 25 0A 200µΩ 0 60Ω 0 10 Rdg 0 1µΩ 5 Digits 20 0 25 0A 0 00µΩ 200µΩ 0 10 Rdg 0 3µΩ 5 Digits 15 0 20 0A 0 00µΩ 0 80Ω 0 10 Rdg 0 6µΩ 5 Digits 10 0 15 0A 0 00µΩ 1 2Ω 0 10 Rdg 0 8µΩ 5 Digits 5 0 10 0A 0 00µΩ 2 4Ω 0 10 Rdg 1 6µΩ 5 Digits 1 0 5 0A 0 00µΩ 12Ω 0 10 Rdg 8 0µΩ 5 Digit...
Страница 83: ...rent harmonic emission IEC 61000 3 2 Flicker and voltage fluctuations IEC 61000 3 3 Immunity industrial electromagnetic environment Electrostatic discharge ESD IEC 61000 4 2 Electromagnetic field IEC 61000 4 3 Burst IEC 61000 4 4 Surge IEC 61000 4 5 Conducted RF IEC 61000 4 6 Power frequency magnetic field IEC 61000 4 8 Voltage dip IEC 61000 4 11 ...
Страница 84: ...90297 0 22 Instruction Manual mini ATOS Page 84 of 92 Appendix mini ATOS mini Automatic Transformer Observation System ...
Страница 85: ...Appendix A Warranty Conditions 86 A 1 Limitation of Warranty 86 A 2 Arbitration 87 B Maintenance 88 B 1 Instrument Cleaning Instruction 88 B 2 How to Insert Paper into Thermal Printer 88 B 3 Thermal Printer Cleaning Instruction 89 C Index 90 D Contacts 92 ...
Страница 86: ...rmation data or interest regardless of their legal basis Warranty claim rights on replacement parts as well as repair of defective parts shall expire after 12 months The warranty limitation period shall be extendable according to the price list The purchaser has the right to extend the warranty period by purchasing additional warranty years A 1 Limitation of Warranty The foregoing warranty shall n...
Страница 87: ... connection with the contract between the purchaser and Raytech AG 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 NO OTHER WARRANTY IS EXPRESSED OR IMPLIED INFO ...
Страница 88: ...irectly on the outer surface of the case only when the door is closed completely Never use cleaning solutions that contain bleach or abrasives B 2 How to Insert Paper into Thermal Printer Open the paper tray by slightly pulling the lever upwards The paper tray can now easily be opened On the paper roll the printable side is the outside of the paper roll Unwind a few cm inch of paper from the roll ...
Страница 89: ...mal Printer Cleaning instruction Open the paper tray and remove the paper roll Do not touch the print head as it may be damaged by static electricity Loosen dirt particles at paper sensor and tear bar with a small brush Forcefully blow into the paper tray to remove the coarse dust Soak Q tip with isopropanol IPA and clean the sensor platen roll and print head rail as well as further dirt Other str...
Страница 90: ...s 72 Home screen 24 H Side current 57 Humidity 78 Inspections 26 Labels wizard 45 Language 28 Lemperature unit 28 License 32 Max error 52 Maximum acceptable deviation 57 Nameplate 38 Naming scheme 29 Networking 29 Number of steps 67 Operating temperature 78 Rated voltages wizard 43 Reference temperature 40 RefTap Step method 44 Relative error 12 Remote access instruction 74 Resistance deviation 15...
Страница 91: ...ature correction 14 Templates 27 Test plan 46 Test voltage 52 Thermal printer cleaning 87 Turns ratio 10 Turns ratio accuracy 79 Turns ratio measurement 10 Turns ratio measurement view 49 Unsafe area 7 Voltage ratio 10 Winding configuration autodetect 37 Winding resistance measurement view 54 X Side current 57 ...
Страница 92: ...on Manual mini ATOS Page 92 of 92 D Contacts Raytech Switzerland Your local representative Raytech AG Oberenbenestrasse 11 5620 Bremgarten Phone 41 56 648 6010 Fax 41 56 648 6011 Mail welcome raytech ch Web www raytech ch ...
