Baker Instrument Company D12R User Manual page 4

High voltage DC test checklist .............................................................................................................31
DC testing ...............................................................................................................................................31
Full DC testing of a motor....................................................................................................................31
Performing only a Megohm test .....................................................................................................33
Performing only DC over voltage test (DC HiPot test).....................................................................33
Sample data showing good & poor insulation ..................................................................................34
Storing the test results in memory ....................................................................................................34
Using the footswitch..............................................................................................................................34
The HiPot over current trip indicator .................................................................................................35
Effects of temperature..........................................................................................................................35
Step Voltage test ...................................................................................................................................35
Step Voltage test procedure ................................................................................................................35
7........................................................................................................................................................................37
Performing Surge tests.................................................................................................................................37
Surge test display ......................................................................................................................................37
Other Important Safety warnings .......................................................................................................37
Surge test setup ....................................................................................................................................38
480V three phase motor check list.....................................................................................................39
Single coil surge test and set-up ........................................................................................................40
Example: Comparison to a master coil ..........................................................................................42
8........................................................................................................................................................................43
Surge test applications..................................................................................................................................43
Maintenance testing ..................................................................................................................................43
Application Notes...................................................................................................................................44
Single phase motors and two terminal devices................................................................................44
Determination of a fault...................................................................................................................44
Form coils ...............................................................................................................................................45
Determination of a fault...................................................................................................................45
Notes and tips for form coils ...........................................................................................................45
Three phase motors..............................................................................................................................46
Determination of a fault...................................................................................................................46
Two or more single coils ......................................................................................................................46
Determination of a fault...................................................................................................................47
Notes and precautions for two single coils ...................................................................................47
Wound rotor motors .............................................................................................................................47
Determination of a fault...................................................................................................................48
Synchronous motor/generator ............................................................................................................48
Determination of a fault...................................................................................................................48
Pole piece fault ......................................................................................................................................48
Stator winding fault ..............................................................................................................................48
Chiller motor testing .............................................................................................................................49
Field coils ................................................................................................................................................49
DC motor/generators ............................................................................................................................49
Armatures...............................................................................................................................................49
Bar-to-Bar Surge test .....................................................................................................................49
Span testing .......................................................................................................................................49
Determination of a fault...................................................................................................................50
Testing large AC stators/motors .........................................................................................................52
Notes and tips for large AC stator/motors ....................................................................................52
Rotor loading (coupling) when testing assembled motors ..............................................................52
Testing assembled motors from the switchgear ..............................................................................54
Transformers .........................................................................................................................................54
Single phase transformers ..............................................................................................................55
Three phase transformers ...............................................................................................................55
Determination of a fault...................................................................................................................55
9........................................................................................................................................................................57
Documenting tests .........................................................................................................................................57
2/24/2010 | 71-018 V11 EN
D12R, D6R, D3R Users Manual
4