SecoGear – Installation, Operation and Maintenance Manual 31 of 56
Before installing the main bus, you must remove the items in
Figure 4-16 for access.
The order in which these components are removed will depend
on whether the cables exit from above or below. Figure 4-16
shows a configuration for cables exiting above.
Once these items are removed, you now have clear access to
the main bus panels. The upper and lower access panels are
each divided into two pieces as seen in Figure 4-17.
Once these panels are removed (Figure 4-18), the main bus can
be installed, as described below. Main bus bars across shipping
splits are packaged and shipped separately. Each bar is marked
with phase and section designation.
Bus Bar Installation
Figure 4-17: Bus Access Panels
Figure 4-18: Bus Accessible
1. Feed bus through the side shrouds shown in Figure 4-19.
2. Torque bus to 36.9 ft.-lbs. [50 Nm]. Use M12 x 50 to bolt
down bus.
3. Install bus boot.
4. Re-install rear barrier assembly cover plates.
Figure 4-19: Side Bus Shrouds
Figure 4-16: Bus Access via Rear Cover Plates
Upper surge
arrester assembly
& support
Cable chimney
channel assembly
Zero-sequence
CT assembly
& supports
(optional)
Partition plate
Lower surge
arrester assembly
& support
