ABB UniGear Digital, Commissioning And Testing Manual, Page: 36 / 98

CURRENT S ENSORS PRIM AR Y TESTING
24 1VLG5000 17 C
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.