Figure 35: Test Setup For Current Sensors Testing When Busbars Are Not Installed Or There Is Restricted Access To The Busbar Compartment - ABB UniGear Digital Commissioning And Testing Manual

CU R R E N T S EN SO R S
Step 2/6
Remove the circuit breaker out of the switchgear panel.
Step 3/6
If there is the high voltage on busbars, secure top shutter with a padlock
Step 4/6
In the cable compartment, connect the injection test set to the cable sealing end and the cir-
cuit breaker compartment to the branch conductor behind the lower shutter of the same
phase.
Figure 35: Test setup for current sensors testing when busbars are not installed or there is
restricted access to the busbar compartment
Step 5/6
Inject current equal to the Application nominal current or equal to the maximal current sup-
ported by the primary testing device if the application nominal current is out of the device
setting range.
2 4
PR IM AR Y T EST IN G
1 VLG 5000 17 C