Megger SG32-1500M, Руководство пользователя

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SG32-UG-EN-V01 Dec 2016
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Switching On ........................................................................................................................................ 23
Connection Diagram ........................................................................................................................... 24
5 OPERATION OF THE SG32-1500M ............................................................................................ 25
Test Modes .............................................................................................................................................. 25
Connections ............................................................................................................................................ 25
Switching on the unit ............................................................................................................................. 26
Test Procedures ...................................................................................................................................... 26
D.C. Dielectric withstand (Proof) Test ............................................................................................ 26
D.C. Dielectric Proof/Burn ............................................................................................................... 27
TDR / Pulse Echo (Time Domain Reflectometer) Low Voltage TDR Pre-location ........... 29
Arc Reflection / Arc Reflection Multi-Shot - High Voltage Pre-location .................................. 30
ICE / Current Impulse (Surge Impulse) - High Voltage Prelocation ......................................... 31
Surge Generation (Surge Impulse) - High Voltage Pinpoint Location ........................................ 33
Switching Off the Unit .......................................................................................................................... 34
6 MAINTENANCE ............................................................................................................................... 35
ADDENDUM 1: Cable Fault Location Applications Guide ............................................................. 37
ADDENDUM 2 ....................................................................................................................................... 39
Typical Fault Locating Strategy ............................................................................................................ 39
Overview of Fault Pre-location Methods ........................................................................................... 41
Description of TDR (Pulse Echo) Techniques ............................................................................... 41
Description of Arc Reflection ........................................................................................................... 42
Description of ICE / Impulse Current ............................................................................................ 43
Description of Voltage Decay ........................................................................................................... 44
ADDENDUM 3: MTDR100 User Guide ............................................................................................ 45
1 MTDR100 Specification ...................................................................................................................... 47
2 Getting to know your MTDR100 ...................................................................................................... 49
Methods available on the MTDR100 .................................................................................................. 50
TDR / Pulse Echo .............................................................................................................................. 50
Arc Reflection Multi-shot ................................................................................................................... 50
Differential Arc Reflection (DART) ................................................................................................. 50
Current Impulse (ICE or Impulse Current) .................................................................................... 50
Loop-off / Loop-on ............................................................................................................................ 51
Display ..................................................................................................................................................... 51
Status Bar ................................................................................................................................................. 52
Operator Menu Bar ................................................................................................................................ 53
Single Button Operation ....................................................................................................................... 54
Rotary Jog-Dial .................................................................................................................................... 54
3 OPERATION OF THE MTDR100 ................................................................................................ 55
Initial Set-up ............................................................................................................................................ 56
Arc Reflection Multi-shot ................................................................................................................... 63