Bus Bar Installation; Figure 4-16: Bus Access Via Rear Cover Plates; Figure 4-17: Bus Access Panels; Figure 4-18: Bus Accessible - GE SecoGear Installation, Operation And Maintenance Manual

Bus Bar Installation

Before installing the main bus, you must remove the items in
Figure 4-16 for access.

Figure 4-16: Bus Access via Rear Cover Plates

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.

Figure 4-17: Bus Access Panels

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.
Upper surge
arrester assembly
& support
Cable chimney
channel assembly
Partition plate

Figure 4-18: Bus Accessible

Zero-sequence
CT assembly
& supports
1. Feed bus through the side shrouds shown in Figure 4-19.
(optional)
Lower surge
arrester assembly
& support

Figure 4-19: Side Bus Shrouds

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.
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