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WWW

.MEGGER.COM

User’s Manual

Art No.

ZP-BB04E

Doc.

BB0141NE

V06 2015

MOM200A/600A

Micro-ohmmeters

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Содержание MOM200A

Страница 1: ...WWW MEGGER COM User s Manual Art No ZP BB04E Doc BB0141NE V06 2015 MOM200A 600A Micro ohmmeters ...

Страница 2: ......

Страница 3: ...ptions or software listings that disclose source code are for informational purposes only Reproduction in whole or in part to create working hardware or software for other than Megger Sweden AB products is strictly prohibited except as permitted by written license agreement with Megger Sweden AB TRADEMARK NOTICES Megger and Programma are trademarks registered in the U S and other countries All oth...

Страница 4: ...rol panels 10 Control panel MOM200A 10 Control panel MOM600A 11 4 Operating instructions 12 External measuring instrument 13 Troubleshooting 13 5 Application examples 14 Measuring resistance in a breaker 14 Measuring resistance at bus bar joints 15 Expanded measuring range 16 Application example 16 6 Specifications 18 Specifications MOM200A 18 Specifications MOM600A 18 ...

Страница 5: ...BB0141nE ZP BB04E MOM200A 600A 5 ...

Страница 6: ...ent to the object being tested After you have adjusted the instrument to provide the desired current through the test object 100 A for ex ample the actual voltage drop across the test object will be measured automatically and all you have to do is press a button to display the actual resistance High current is generated and sent out by the instru ment during measurement A miniature circuit breaker...

Страница 7: ...BB0141nE ZP BB04E MOM200A 600A 7 1 Introduction ...

Страница 8: ...e current transformer cores after DC has passed through their current trans former 3 Never open a circuit breaker while a micro ohmmeter is connected to it 4 Current continues to flow for a while after the micro ohmmeter is turned off How long it con tinues depends on the ratio of the components in the L R circuit 5 Always connect protective earth ground 6 Always use safety connecting leads 7 Alwa...

Страница 9: ...um current for the equip ment and the cable shall meet the requirements of IEC 60227 or IEC 60245 Mains supply cables certified or approved by a recognized testing au thority are regarded as meeting this requirement 2 Refer all servicing to authorized personnel 3 If you need to return the instrument please use either the original crate or one of equivalent strength ...

Страница 10: ...rminal SENSE 3 Negative current output IOUT 4 Resistance button R 5 Current shunt terminal SHUNT 6 Miniature circuit breaker for mains F1 7 Miniature circuit breaker for variable trans former 8 Grounding terminal 9 ON OFF switch 10 Mains inlet 11 LED resistance 12 LED current 13 LED thermal cut out 14 Resistance range switch 15 Test current switch 16 Variable transformer ...

Страница 11: ...erminal SENSE 3 Negative current output IOUT 4 Resistance button R 5 Test current push buttons 6 Current shunt terminal SHUNT 7 Miniature circuit breaker for mains F1 8 Grounding terminal 9 Mains inlet 10 LED resistance 11 LED current 12 LED thermal cut out 13 Miniature circuit breaker 17 A F3 MOM600 115 V only 14 ON OFF switch 15 Variable transformer ...

Страница 12: ...disconnected from the mains while making connections 2 Ground one side of the test object 3 Ground the micro ohmmeter 4 Connect the two current cables on two sides of the test object 5 Connect the two sensing cables using the same polarities as those used for the current cables on two sides of the test object and as close to the test object as possible Note The sensing cables must be connected ins...

Страница 13: ...reason you want to use an external measuring instrument to set the measurement cur rent you can connect it to the current shunt Voltage across the current shunt is proportional to the mea surement current flowing through the test object 10 mV per 100 A Troubleshooting Fault Cause Remedy Display shows only a 1 at left Current range set on instrument has been exceeded If possible select ano ther tes...

Страница 14: ...t the desired current 100 A for example using the Test current switch MOM600A Select the desired current 100 A for example using the proper Test current push button 8 Clear 0 set the instrument by turning the knob 16 on the variable transformer down to 0 whereupon it will enter the current generation mode and LED 12 will light up 9 Increase the current as close as possible 1 A to the desired value...

Страница 15: ...witch MOM600A Select the desired current 100 A for example using the proper Test current push button 8 Clear 0 set the instrument by turning the knob 16 on the variable transformer down to 0 whereupon it will enter the current generation mode and LED 12 will light up 9 Increase the current as close as possible 1 A to the desired value 100 A in this case which was the current you just selected Set ...

Страница 16: ...nnected close to the test object 5 Connect the micro ohmmeter to the mains 6 Turn the instrument s ON OFF switch ON 7 Select the desired current 400 A for exam ple using the Test current push buttons on the MOM600A 8 Clear 0 set the instrument by turning the knob 16 on the variable transformer down to 0 whereupon it will enter the current generation mode and LED 12 will light up 9 Increase the cur...

Страница 17: ...BB0141nE ZP BB04E MOM200A 600A 17 6 Specifications ...

Страница 18: ...est time Input current at 115 230 V AC 100 A DC 3 8 V DC 5 min 15 min 15 min 60 min 200 A DC 3 0 V DC 20 s 5 min 14 A 7 A Specifications MOM600A Specifications are valid at nominal input voltage and an ambient temperature of 25 C 77 F Specifications are subject to change without notice Environment Application field The instrument is intended for use in high voltage substations and indust rial envi...

Страница 19: ...ge Max load time Rest time Input cur rent 100 A DC 4 6 V 8 A 300 A DC 3 8 V 1 5 min 15 min 20 A 600 A DC 2 6 V 10 s 5 min 38 A Max load capacity 230 V model Current adjustment set to 100 Output current Min output voltage Max load time Rest time Input cur rent 100 A DC 8 3 V 6 A 300 A DC 7 2 V 2 5 min 15 min 16 A 600 A DC 5 6 V 15 s 5 min 32 A ...

Страница 20: ...HINA FRANCE GERMANY INDIA INDONESIA JAPAN KINGDOM OF BAHRAIN KOREA MALAYSIA PAKISTAN PHILIPPINES RUSSIA SINGAPORE SOUTH AFRICA SPAIN SWEDEN SWITZERLAND TAIWAN THAILAND UNITED ARAB EMIRATES USA VIETNAM Battery Test Equipment Cable Fault Locating Equipment Circuit Breaker Test Equipment Data Communications Test Equipment Fiber Optic Test Equipment Ground Resistance Test Equipment Insulation Power Fa...

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