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EntelliGuard R Circuit Breaker Retrofill AKD-8 Installation Manual DEH41549 R05
AKD-8—Rogowski Assemblies, Mechanical Views
Figure 48
shows a typical Rogowski assembly.
Figure 48. Neutral Bus Rogowski ASM 10108266
Procedures
PRODUCT DAMAGE
•
Write down the orientation of the existing Iron
core CT and the polarity of the connections.
The orientation and polarity needs to be
matched when the air core Rogowski is
assembled in the cable compartment. Do not
allow the circuit breaker to hit a hard surface
while handling.
1.
Ensure that the LVS has been de-energized and the breaker in the compartment being retrofit is
switched off and removed from the LVS.
2.
Open the door on the rear of the compartment to access the Cable/ Bus compartment of the LVS
3.
Note that he existing neutral CT assemblies are usually mounted vertically on two copper bus bars
placed horizontally.
4.
Disconnect the wires that are attached to the existing CT assemblies and place them such that they do
not interfere with the replacement of the CT assemblies.
5.
Unfasten and remove the bolts that hold the neutral disconnect assemblies to the horizontal bus bars.
Keep the hardware in a secure location for reassembly.
6.
Be careful while handling the CT assemblies such that they do not fall down or damage other
components within the LVS.
