Home

690

1. Common output terminal DC current output Voltage measurement input Display Setting selector Function selector Interrupts current and toggles the display between resistance and voltage RS 232 Serial interface e O O O O Information about current generation or memory location Value of the generated current Indicates whether the current is above lt or below gt a preselected value Selected test current for Auto DC Off Scroll using the lt A gt button Selected function Scroll using the lt FUNC gt button Shows the measured resistance or voltage value Toggle by pressing the lt Q gt button Ordering information Art No MOM690 Complete with Cable set standard GA 05055 Ground cable GA 00200 Transport case GD 00182 115 V Mains voltage BB 41190 230 V Mains voltage BB 42390 Optional accessories PC Software MOMWin Incl serial cable for RS 232 port BB 8010X Cable set 15 m 49 ft GA 09155 Extension cable set No 1 GA 05057 Extension cable set No 2 GA 05107 Calibration shunt BB 90024 Cable set and current shunt Transport case XL GD 00042 NOTICE OF COPYRIGHT amp PROPRIETARY RIGHTS 2008 Programma Electric AB All rights reserved The contents of this document are the property of Programma Electric AB No part of this work may be reproduced or transmitted in any form or by any means except as permitted in written licen
2. General Mains voltage 115 230 V AC 50 60 Hz Power consumption 115 V 5980 VA at 600 A output Current A Voltage V Max load time Input current A 0 7 3 0 8 50 6 9 30 min 100 6 4 10 min 10 200 55 90s 19 300 4 8 50 s 400 3 9 30s 38 500 3 0 15s 575 25 10s 600 ZZ 8 s 52 700 1 5 55 8002 0 9 1 Maximum current with standard cables 2 x 5 m 50 mm2 2 At 800 A and above instant shut off Note The above figures shows maximum load time from cold state 25 C They are not valid for repeated tests max 230 V 9660 VA Protection Miniature circuit breaker thermal fuse software Dimensions Instrument 350 x 270 x 220 mm 13 8 x 10 6 x 8 7 Output AC CAT I 115 V model Current A Voltage V Max load time Rest time 0 8 7 Cont 660 3 5 2 5 4 min Note The DC and AC outputs must not be loaded at the same time Output DC CAT I 230 V model Transport case 610 x 290 x 360 mm 24 0 x 11 4 x 14 2 Weight 115 V 24 kg 52 9 Ibs model 38 9 kg 85 7 Ibs with accessories and transport case Weight 230 V 23 7 kg 52 2 Ibs model 38 6 kg 85 1 lbs with accessories and transport case Available languages English French German Spanish Swed ish Current cables 2x5m 16 ft 50 mm2 Sensing cables 2x 5b m 16ft 2 5 mm Optional current cable sets Ext 1 Extension 2 x5 m 50
3. mm2 EXE 2 Extension 2 x 10 m 50 mm2 2x 15m 49 2 ft 95mm Measurement section Current A Voltage V Max loadtime Input current A 0 9 4 0 4 50 9 0 30 min 100 8 6 10 min 6 200 8 0 90 s 300 7 2 50s 400 6 4 40s 500 5 7 30s 600 5 0 15s 33 700 4 3 8 s 750 3 8 5S 800 3 6 42 1 Maximum current with standard cables 2 x 5 m 50 mm2 2 At 800 A and above instant shut off Note The above figures shows maximum load time from cold state 25 C They are not valid for repeated tests Output AC CAT I 230 V model Ammeter Range 0 800 A Resolution 1A Inaccuracy 100 800 A 1 of reading 1 digit 50 99 A 2 of reading 2 digits 0 49 A not specified Resistance Range 0 200 mQ gt 200 mO not specified Resolution 1 uQ Inaccuracy 100 800 A 1 of reading 1 digit 50 99 A 2 of reading 2 digits 0 49 A not specified Current Voltage Max load time Rest time A VAC 0 11 2 Cont 660 4 5 2 5 4 min Note The DC and AC outputs must not be loaded at the same time Max load resistance current 115 V model Cable set Standard Stand Standard 2x 15m95 mm ard Ext 1 Ext 1 At 300A 10 mO 6 mO 3 m0 10 mO Max cur 575 A 420 A 360 A 540 A rent Grounding terminal Connection for mains voltage Miniature circuit breaker for mains Switch for mains voltage Variable transformer AC current output
4. MOM690 Microhmmeter Av x D S al 9 A Meqger Group Company MOM690 Microhmmeter Measuring resistance is an important part of maintaining high voltage breakers and disconnecting switches Instruments that measure the resistance of high current contacts and other transmission elements have been included in the Programma line of products for many years MOM690 supplements our family of microhmmeters In addition to high current capacity MOM690 features microprocessor based measurement storage and reporting The built in software enables you to carry out an individual test or an entire series of tests and store the results With the optional MOMWin software you can also export the test results to a PC for further analysis and reporting Ranges are set automatically resistances are measured continually and test results can be automatically captured at a preset test current What could be simpler After testing a breaker with a CT mounted in its current circuit e g dead tank and GIS breakers some standards recommended that the CT is demagnetized This troublesome task can be accomplished quickly and easily thanks to the MOM690 s AC output The AC output can also be used as a general multi purpose current source in different applications Application example IMPORTANT Read the User s manual before using the instrument Measuring the resistance of a breaker 1 Make certain the l
5. ine is de energized on both sides of the breaker 2 Ground the breaker on one side and make certain it is closed Ground the microhmmeter 4 Make certain the microhmmeter s ON OFF switch is OFF while making connections 5 Connect the current cables to the DC and COM terminals and the sensing cables to the sensing inputs to both sides of the breaker making sure that the polarities match properly IMPORTANT The sensing cables must be connected inside the current cables Otherwise the test data will be incorrect See Fig Switch on the MOM690 Select AUTO or MAN with the lt FUNC gt button Set output current to zero to start the measurement G oP Increase the current to the desired value 600 A for example 10 Read the resistance value Measuring resistance at busbar joints 1 Make certain the line is de energized and the test object is grounded Ground the microhmmeter 3 Make certain the microhmmeter s ON OFF switch is OFF while making connections 4 Connect the microhmmeter s current cables to the test object Do not connect the sensing cables Measurement will be done manu ally using an external portable voltmeter Switch on the MOM690 Select MAN with the lt FUNC gt button Set output current to zero to start the measurement Increase the current to the desired value 100 A for example 2 Pn ee Using an external voltmeter measure the voltage drop across each contact element within eve
6. rrent cables 2 x 10 m 33 ft 2 5 mm sensing cables Weight 7 5 kg 16 5 Ibs Extension cable set No 2 2 x 10 m 33 ft 50 mm current cables 2 x 15 m 49 ft 2 5 mm sensing cables Weight 15 kg 33 Ibs Calibration shunt An optional calibration shunt 600 A 60 mV can be ordered for MOM690 that enables you to make certain that the instrument readings remain correct Transport case XL With space for the standard 5 m cable set extension cable set No 1 or No 2 Measuring resistance at busbar joints Specifications MOM690 Specifications are valid at nominal input voltage and an ambient temperature of 25 C 77 F Specifications are subject to change without notice Max load resistance current 230 V model Environment The instrument is intended for use in high voltage substations and industrial environments Application field Cable set Standard Stadard Stadard 2x15m95 mm Ext 1 Ext 17 At 300 A 18mQ 14 mo 11m0 18 MOQ At 600 A 3 0 m0 1 8 MQ Max cur 750A 570A 480A 690A rent Output DC CAT I 115 V model Temperature Operating 0 C to 50 C 32 F to 122 F Storage amp trans 40 C to 70 C 40 F to 158 F port Humidity 5 95 RH non condensing CE marking LVD Low Voltage Directive 73 23 EEC am by 93 68 EEC EMC EMC Directive 89 336 EEC am by 91 263 EEC 92 31 EEC and 93 68 EEC
7. ry section of the busbar being tested The voltmeter must be set to DC 10 Calculate the actual resistance Example If the voltage drop is 0 0067 V at a current of 100 A the resistance will be 0 0067 100 O i e 67 pQ c Ll Ce a et i Measuring the resistance of a breaker Optional accessories PC Software MOMWIin An optional Windows program named MOMWin is available for MOM690 It can be used to control measurement analyse the results and report the results from a PC It also enables you to retrieve test results stored previously in MOM690 All readings are saved in ASCll format and can be easily exported to your favourite soreadsheet program Results can be presented in table or diagram form in MOMWin The program runs in Windows 95 98 NT 2000 or XP Minimum requirement is a 486 computer with 8 MB of RAM Incl serial cable for RS 232 port Cable set 15 m 49 ft 2 x 15 m 49 ft 95 mm current cables 2x 15 m 49 ft 2 5 mm sensing cables Weight 29 4 kg 64 8 Ibs Cable extension sets Since all current cables have bayonet connectors standard cables can be easily prolonged with 5 or 10 metre extension sets if so desired In situations requiring high currents and long cable lengths heavier cable sets may be necessary however Extension cable set No 1 2x5 m 16 ft 50 mm cu
8. se agreement with Programma Electric AB Programma Electric AB has made every reasonable attempt to ensure the completeness and accuracy of this document However the information contained in this document is subject to change without notice and does not represent a commitment on the part of Programma Electric AB TRADEMARK NOTICES Megger and Programma are trademarks registered in the U S and other countries All other brand and product names mentioned in this document are trademarks or registered trademarks of their respective companies Programma Electric AB is certified according to ISO 9001 and 14001 Programma Electric AB Programma Eldarv gen 4 T 46 8 510 195 00 Box 2970 F 46 8 510 195 95 SE 187 29 T BY info programma se Sweden Www programma se 9 Subject to change without notice Art No ZI BBO4E Doc BB0214CE 2008

690

Contents

Download Pdf Manuals

Related Search

Related Contents