GE Industrial Solutions BDCBB H569-445 - Manual (Page 31)

Secondary DC Power Distribution Bay H569-445
Issue 3 June 2012 31
Adding/Moving Load Shunt Bus Details
Sometimes it may be necessary to reconfigure a BDFB in the field. Two common
changes are converting two load BDFB’s from top feed configurations to bottom feed
configurations and changing from a 2-load to a 4 or 6-load BDFB. Additional Load Shunt
Bus Kits as shown on Figure 10 may be purchased separately.
Converting Top-Feed to Bottom-Feed
The following steps describe how to convert a top-feed cabinet to a bottom-feed
cabinet. Reverse this procedure to convert a bottom-feed to a top-feed cabinet.
1. Disconnect wires from the shunts on the load shunt assembly. Note the wire
colors and location. These same colors are used when moving the shunts from
panel position 1 to panel 5 position and panel position 2 to panel position 6. The
solid color (blue or slate) is closest to the input cables.
2. Disconnect the hardware securing the shunt assembly at the top of the cabinet.
3. Remove 6-32 screw securing shunt wires to the charge bus bar at the bottom of
the cabinet where the shunt assembly will be placed.
4. Relocate load shunt assembly and mount it in the bottom of the cabinet.
5. Connect shunt wires in same location and color as in previous location.
6. Connect shunt wires to the charge bus bar at the top of the cabinet where the
shunt assembly was removed using same 6-32 screw.
7. Move the internal return bus bar from the top to the bottom of the cabinet.
Note: Internal return bus bars may not be present.
8. The VIM1 meter needs to be reconfigured. Navigate to
Menu
►Load Parameters
►First Load and change Load Bus A location from upper-left to lower-left or
lower-right depending on which side you want to be side A and side B.
9. Relabeling might also be required as discussed in the Panel Positions and
Labeling section.