GE Industrial Solutions EntelliGuard R AKD-8 - Manual (Page 42)

41 EntelliGuard R Circuit Breaker Retrofill AKD-8 Installation Manual DEH-41549 02/12
7. Replace the old CT assembly by the new Rogowski assembly on the horizontal bus bars and fasten it
using the hardware previously removed.
8. Connect the wires back to the Rogowski CT assembly leads. In case of damaged wire, the same must be
replaced with new ones as already mentioned.
9. Check for continuity from the CT leads to the plungers on the neutral disconnect assemblies within the
LVS compartment.
• The new Rogowski assemblies are installed and ready for use.
• Tools required: Wrenches, wire stripper, wire cutter, continuity tester.
AKD-8—Multi-Source Ground Fault
Retrofillls can be used in the following ground fault applications:
• Single Source Feeder breakers, 3 wire or 4 wire
• Main Circuit breakers, 3 wire or 4 wire
When multi-sources are present with the ground fault detection on the trip unit desired, then an external GF
summing CT scheme must be implemented. This applies to Main—Tie—Main systems or systems with a Main
source and then a back-fed generator source.