4000A Bus

[mstrlucky74]

Anyone familiar with collector bus? What is it? Just bus in a trough?

 

[wbdvt]

I think it is just a case of terminology but it looks like just a piece of switchgear with a 4000A bus.

 

[m sleem]

It seems the synchronization unit for paralleled generators.

 

[ATSman]

From Google:

05 System arrangment - Schneider Electric
static.schneider-electric.us/assets/consultingengineer/appguidedocs/section5_0307.pdf
The common secondary bus is often referred to as the “collector bus.” An example of a secondary spot-network system is shown in figure 5-11. Ring Bus system. Essentially a loop system in which the loop is normally closed, the ring bus is a highly reliable system arrangement. A typical ring-bus system is depicted in figure ...

http://static.schneider-electric.us/assets/consultingengineer/appguidedocs/section5_0307.pdf

More commonly referred to as the Main Bus of a switchboard or switchgear lineup fed from a Main Breaker(s),
Tie Breaker, etc.
In this case it is an emergency bus fed from a single emergency generator which in turn feeds the emergency side of (6) ATS units.