SecoGear – Installation, Operation and Maintenance Manual 48 of 56
Figure 9-1: Rear Compartment Assembly Illustration
Main Bus Compartment
Support Plate
Main Bus Compartment
Cover Plates
Partition Plate
Cable Channel
Assembly
Main Bus Compartment
The following instructions apply to SecoGear model
number 3PVA0040020003, with two circuit breaker
compartments. They are for reference only and
may vary slightly for other configurations.
De-energize equipment completely before doing
maintenance work in compartments. This includes
de-energizing any connections to outside primary or
secondary sources, such as transformers, tie lines, etc.
WARNING
!
1. Remove the zero-sequence current transformer (CT)
assembly and the arrester assembly, located in the middle
of the rear panel.
2. Next, remove the partition plate.
3. With the partition plate removed, you now have access
to take the chimney channel assembly out of the
compartment.
4. Finally, remove the support plate and two cover plates
to expose the main bus compartment.
Now, you have direct access to the main-bus
compartment for maintaining and combining main
busbars. When you have completed the maintenance,
reverse these steps to reassemble the compartment.
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