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M

AVTMMTO210 Rev 7 Sept 2013

50

7. SETTING THE LOGOS

a.

Select the

Tools>Options

menu item.

b.

The Logos section specifies paths to the left and right logos files to
use.

c.

To change the left logo press the

“…”

button by the left logo path.

d.

The Open Screen allows you to browse to a file location, select a
.JPG or .BMP file, and press the

Open

button.

e.

Repeat steps (c) and (d) for the right logo path.

f.

Note that a logo will not be shown if the logo file path is blank or the
file does not exist.

g.

Note after specifying the logo files the image will not be shown until
the next time a form is opened (

File>Open

, or the

File>New

menu

items).

h.

Note that the logos will look the best if the resolution of the file is
240 pixels wide by 240 pixels high. DPI is not important.

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Содержание MTO210

Страница 1: ...sformer Ohmmeter DC Winding Resistance Test Set MTO210 Catalog Number MTO210 HIGH VOLTAGE EQUIPMENT Read this entire manual before operating M Valley Forge Corporate Center 2621 Van Buren Avenue Norri...

Страница 2: ......

Страница 3: ...Transformer Ohmmeter DC Winding Resistance Test Set MTO210...

Страница 4: ...pairing at our option defective equipment Equipment returned to the factory for repair must be shipped prepaid and insured Contact your MEGGER representative for instructions and a return authorizatio...

Страница 5: ...ion of Test Sequence 15 5 Transformer Testing 25 Winding Resistance Testing 25 Testing a Single Phase Transformer 26 Testing Delta Configured Windings 33 Testing Transformers with Tap Changers 35 Test...

Страница 6: ...l Winding Test 28 Figure 4 Reading obtained is per phase Resistance of A N Winding 31 Figure 5 Reading obtained is between pairs of terminals Resistance of A and B Windings 32 Figure 6 Reading is betw...

Страница 7: ...Prior to operation check for loosened hardware or damage incurred during transit If these conditions are found a safety hazard is likely DO NOT attempt to operate equipment Please contact Megger as s...

Страница 8: ...AVTMMTO210 Rev 7 Sept 2013 iv M...

Страница 9: ...speed up the measurement when current leads are driving more than one winding The Transformer Ohmmeter is extremely useful when testing the windings and contact resistance on tap changers with make b...

Страница 10: ...en circuit condition exists the instrument shuts down immediately Electronically generated and patented regulated current supply overcomes high inductance transformers quickly allowing fast measuremen...

Страница 11: ...quency and power requirements for the product Below the module are the fuse type and ratings based on the input voltage used The green light on the right side of the module illuminates when power is O...

Страница 12: ...onnect a transformer under test to earth ground for safety The transformer and the MTO shall be at the power ground earth potential when being operated Emergency Shut Down Switch This switch when push...

Страница 13: ...ely start the MTO test and store multiple resistances reading for tap changes The storage function in remote mode is sequential and occurs during a continuous resistance test The unit will also store...

Страница 14: ...ransformer demagnetization The DEMAG INDICATOR to the right will illuminate during the demagnetization cycle When pushed the unit will acknowledge data entry displayed messages and during test mode sa...

Страница 15: ...rmation F WARNING When applying current to a transformer with very high inductance additional care should be taken not to remove current or voltage leads while current is still flowing This causes an...

Страница 16: ...lved with the work away from test activities Never connect the test equipment to energized equipment Do not use in an explosive atmosphere Use the grounding and connection procedures recommended in th...

Страница 17: ...e of the power source The power input plug must be inserted only into a mating receptacle with a ground contact F WARNING Do not bypass the grounding connection Any interruption of the grounding conne...

Страница 18: ...M AVTMMTO210 Rev 7 Sept 2013 10 M...

Страница 19: ...ns Connections should be made in the order as listed below 1 Ground Use the Megger supplied Safety Ground Cable 15 ft 4 6 m to connect the MTO Wing Nut Ground Terminal directly to Local Station Earth...

Страница 20: ...me With the clamps disconnected from the UUT connect the I and V cables to the MTO at this time Be sure that all plugs are fastened securely to the MTO so they will not become loose even in the event...

Страница 21: ...Safety AVTMTO210 Rev 7 Sept 2013 13 At this time make the connections to the Transformer Under Test TUT as described in the applicable section of Section 5 Connecting to the Transformer Under Test...

Страница 22: ...M AVTMMTO210 Rev 7 Sept 2013 14 M...

Страница 23: ...n place F WARNING For all testing as described herein care shall be taken to ensure any and all unused clamps shall be isolated from each other from ground and from personnel F EMERGENCY SHUTDOWN PROC...

Страница 24: ...d the user has the ability to go into any of four user functions This section describes the TEST FUNCTION in detail 1 Set the Data Output Mode Switch to the desired mode 2 Set the Function Mode Switch...

Страница 25: ...ta saved 10 Press and the unit will turn off power to the transformer store and or print the data based on the setting of the Data Output Mode Switch and display the data on the LCD display for review...

Страница 26: ...er by automatically magnetizing the core of the transformer in the positive and negative direction with multiple cycles of reduced current During the demagnetizations the unit will display what cycle...

Страница 27: ...s If a Break Before Make condition occurs the Break Before Make Indicator will flash rapidly Depending on the length of the break one of two things will happen 1 For short breaks the unit will rapidly...

Страница 28: ...isplay detailed results of current and two resistance values Pressing will alternate between the two displays NOTE If the MTO storage is full the message StorAg FULL will be displayed at power up or a...

Страница 29: ...w 1 Set the Function Mode Switch into set time mode 2 Use and to traverse thru the year month day hour minute and second The active parameter will blink on and off 3 Use and to increase or decrease th...

Страница 30: ...M AVTMMTO210 Rev 7 Sept 2013 22 2 Press and to traverse from year month day to month day year to day month year 3 Press to confirm any changes made to selected parameters...

Страница 31: ...ct Software Downloads 4 Select MTO There should be a list of software available for download 5 Select the latest firmware version available The software is self contained as a ZIP file 6 Download the...

Страница 32: ...M AVTMMTO210 Rev 7 Sept 2013 24 M...

Страница 33: ...taps allow ratio to be increased or decreased by fractions of a percent Any of the ratio changes involve a mechanical movement of a contact from one position to another These tap changes should also...

Страница 34: ...easured in the factory Testing a Single Phase Transformer SINGLE WINDING TEST Figure 2 Single Winding Measurement F WARNING Do not disconnect leads until all indicators are OFF PROCEDURE 1 Connect lin...

Страница 35: ...be observed and resistance readings taken when the reading stabilizes The drift in the indicated resistance reading is due to the inductance of the transformer For small transformers the drift lasts f...

Страница 36: ...icators are OFF NOTES It should be carefully noted that the jumper in Figure 3 be connected to opposite polarities of transformer to reduce transformer core saturation time If the resistance between t...

Страница 37: ...en current leads and the transformer See Figure 3 NOTE Always try and keep the polarization of the transformer the same for improved transformer charge time If the positive lead for the current is con...

Страница 38: ...for at least 3 hours The temperature of the insulating liquid has stabilized and the difference between the top and bottom temperature does not exceed 5 C If the transformer is measured without oil t...

Страница 39: ...d in conjunction with procedure Single Phase Transformer Test The only changes will be placement of leads NOTE When testing Primary and Secondary windings simultaneously always try and keep the polari...

Страница 40: ...esistance of A and B Windings Use the above diagram in conjunction with procedure Single Phase Transformer Test 3 Three Phase Delta Configured Winding Figure 6 Reading is between pairs of terminals Re...

Страница 41: ...As an example testing the Low Voltage side of a 100 10 kV Yd transformer with dual side injection at 10A is the same as testing only the Low Voltage side of that same transformer 68 A Even if only one...

Страница 42: ...3 X1 X0 H1 H3 X1 X0 H2 H1 X2 X0 H2 H1 X2 X0 H3 H2 X3 X0 H3 H2 X3 X0 YNyn0 H1 H0 X1 X0 H1 H0 X1 X0 H2 H0 X2 X0 H2 H0 X2 X0 H3 H0 X3 X0 H3 H0 X3 X0 Ynd1 H1 H0 X1 X2 H1 H0 X1 X2 H2 H0 X2 X3 H2 H0 X2 X3 H...

Страница 43: ...e changed while power current is still passing through it The most common example of this type of On load tap changer is a Voltage Regulator The MTO is ideally suited to test On load tap changers beca...

Страница 44: ...ld normally take a very long time With the MTO this test time is drastically reduced because the instrument will stay on while changing On load tap positions All regulators have internal bridging reac...

Страница 45: ...ction to a Regulator F WARNING Do not disconnect leads until all indicators are OFF PROCEDURE 1 Connect line cord to unit and plug into 120 240V socket 2 Set the following conditions a Set to TEST pos...

Страница 46: ...ss to save and or print the readings of each tap If a Break Before Make condition occurs the Break Before Make Indicator will flash rapidly Depending on the length of the break one of two things will...

Страница 47: ...netization function is equivalent to generating test currents for multiple resistance tests During the demagnetizations cycle the unit will display the number of cycles left in the process 1 Demagneti...

Страница 48: ...M AVTMMTO210 Rev 7 Sept 2013 40 M...

Страница 49: ...nts PowerDB Lite detects the instrument and enables the appropriate form s Data can be entered on screen or captured directly while using the test instrument Completed data forms can be saved as files...

Страница 50: ...rate test reports with table of contents and deficiency summaries Allows all of your field test data to be integrated with CMMS systems such as Maximo or SAP Imports From Many Other Industry Standard...

Страница 51: ...MTO210 Series PowerDB Lite AVTMTO210 Rev 7 Sept 2013 43 2 Choose the destination location for the PowerDB Lite files 3 Select Default Settings...

Страница 52: ...M AVTMMTO210 Rev 7 Sept 2013 44 4 InstallShield Wizard will complete the installation of PowerDB Lite Click Finish to close the installation program...

Страница 53: ...uration screen c Use the Refresh button to find any ports that may have not been connected at the startup of PowerDB Lite If you are using a USB serial port and do not know the port assigned to it ple...

Страница 54: ...d Click OK on the Instrument Setup Screen to finish 2 SELECT A FORM Once you have defined the instrument PowerDB will present the forms created in the database and associated with that instrument The...

Страница 55: ...ed downloaded tests and delete those specific tests d Delete ALL Test Data When this software button is pressed all of the data in the instrument will be deleted 4 COMMENTS AND DEFICIENCIES When impor...

Страница 56: ...7 Sept 2013 48 5 SAVE THE DATA a Select the File Save menu item or press CTRL S or press the Save toolbar button b The Save As screen will allow you to specify a location and file name for your Power...

Страница 57: ...m b Browse to the file you would like to open c Press the Open dialog button d If the file contains multiple test dates select the Date that you would like to open for editing or select New to append...

Страница 58: ...ile location select a JPG or BMP file and press the Open button e Repeat steps c and d for the right logo path f Note that a logo will not be shown if the logo file path is blank or the file does not...

Страница 59: ...HOW TO CHANGE LANGUAGES a Select the Tools Options menu item b Select the appropriate language in the dropdown menu 9 HOW TO CHANGE UNITS OF MEASUREMENT a Select the Tools Options menu item b Select t...

Страница 60: ...PowerDB Lite Help menu item Frequently Asked Questions FAQ s 1 Can I change the forms No You must have the full version of PowerDB to change forms 2 Can I synchronize forms to a database No You must...

Страница 61: ...urpose household spray cleaner can be used to clean the panel Polish with a soft dry cloth taking care not to scratch the display screen cover 3 Clean the cables and mating panel receptacles with isop...

Страница 62: ...le Connect the power cord to the MTO test set and to an energized power source If the electronic circuits still do not function properly contact the factory for service Calibration A complete performa...

Страница 63: ...and recommends that its customers take advantage of this service for routine maintenance or in the event of any equipment malfunction In the event that Service is required contact your Megger represe...

Страница 64: ...ined CODE Error Description Possible Cause ESd ESD is pushed down Button is pushed down internal cable is disconnected internal hardware failure IntLoc Interlock interface is open Interlock Jumper rem...

Страница 65: ...e 209 Zero reference is out of range 210 25V reference is out of range 211 VICOR power supply failed to regulate at 5 volts 212 VICOR power supply failed to regulate at 20 volts 213 VICOR power supply...

Страница 66: ...iting error 229 EEPROM byte reading error 230 EEPROM is uninitialized 231 Discharge temperature too much ripple 232 VNOISE voltage out of range 233 VNOISE voltage too much ripple 234 VICOR power suppl...

Страница 67: ...eruse extremely hot test conditions 245 VNOISE voltage out of range too low 246 VICOR temperature too much ripple 3 0 ADC_ERROR 301 ADC reading times out or ADC locks up 302 Internal error Communicati...

Страница 68: ...t protection failed OVER is too long or too short to set 406 Current Regulation failed at DAC 0 407 Current Regulation failed at 10mA range 408 Current Regulation failed at 100mA range 409 Current Reg...

Страница 69: ...iled during winding resistance test 468 Received abort signal 469 System zero cal failed during current regulation 470 No current setting has been set for current control 471 Current is flat or droppi...

Страница 70: ...transistor protection high failed OVER is too short to reset 486 Fast transistor protection high failed OVER is too long to set 487 Fast transistor protection high failed OVER is too short to set 488...

Страница 71: ...ower cord IEC60320 C13 to Schuko CEE 7 7 17032 13 Serial Data Cable CA RS232 In lid Quick Start Guide 37178 Canvas carrying bag for leadsets 30915 211 Instruction manual ATVMMTO210 PowerDB LITE softwa...

Страница 72: ...M AVTMMTO210 Rev 7 Sept 2013 64 M...

Страница 73: ...Accuracy 0 25 reading 0 25 full scale Resolution 4 digits Displays Two 1 high 6 character 7 segment LCDs One 0 71 high 6 character 7 segment LCD PRINTER Via RS 232 port USER INTERFACE B W numeric disp...

Страница 74: ...M AVTMMTO210 Rev 7 Sept 2013 66 M...

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