Page 29
© Copyright 2021 ABB. All rights reserved.
Converting from 2-Load to 4, 6, or 8-Load
G7 and G8 can be converted to 4 or 6 Load.
G101 and G102 can be converted to 4, 6, or 8 Load.
This requires that new load shunt bus kits be added to existing panels in the cabinet and linking
bus bars between panels be removed or “split” to create the additional loads.
The following steps describe this procedure.
Caution: Live potentials are present within a working BDFB/ BDCBB cabinet! Take proper
precautions to insulate all tools and prohibit any live surface from contacting framework
or any other grounded surface.
Note: If splitting existing loads within the BDFB/BDCBB, the load shunt assembly will be at a live
potential as soon as it comes into contact with a distribution panel bus and must not be allowed to
contact framework or any grounded surface during or following this step!
Remove 6-32 screw securing shunt wires to the charge bus bar where the new load shunt bus
assembly will be installed. Note color of shunt wires at each position.
Install load shunt bus assembly to the charge bus as shown in Figure 23. Connect (2) red glastic
standoffs to panel. Attach shunt detail to panels charge bus with 5/16 hardware provided and ½”
socket (Torque to 135 in-lb) and attach to standoffs with 1/4-20 screws provided and 7/16” socket
(Torque to 65 in-lb).
1. Connect shunt wires to shunt. There should be a solid color like Blue, Orange, Gray or Brown and
a striped color like White-Blue, White-Orange, White-Gray or White-Brown. Attach solid color to
back connection (it is connected to input bus). Attach striped color to front connection (it is
connected to panels charge bus).
2. Remove Bus Bar Straps to “split off” these panels as individual load buses. Remove 5/16”
hardware with ½” socket. Store these links in hardware bin in back of cabinet.
3. The VIM1 meter needs to be reconfigured. Navigate to
Menu ▶Load Parameters ▶Number of Loads and set the number of load shunts in the BDFB.
4. Relabeling might also be required as discussed in Section 8. Stamp or Label new load
designations on the labels.
To Next Page
Loading...
