Lady Engineer
Senior Member
- Location
- New Jersey
Ok, I have a 600KW Gen Set. The ATS, rated 800A, is connected to the Gen Set, the Normal is connected to a 800A air breaker (branch) in Main Switchgear (rated 4000A) and the Load side of the ATS goes to an 800A EM. Panel. The Panel does not feed Life Safety loads. The main for the switchgear is rated 3000A at 480V.
Question: I don't want to install a 3000A ATS, but I would like to feed the entire building off of the 600KW Gen Set, by load shedding done to the loads which need back up. Is there a way I can do this on the load side or line side of the 3000A Main with using the 800A ATS?? The reason I want to feed the building is that, the current life safety loads are on batteries so they aren't separated into separate panels or circuits. :?
Question: I don't want to install a 3000A ATS, but I would like to feed the entire building off of the 600KW Gen Set, by load shedding done to the loads which need back up. Is there a way I can do this on the load side or line side of the 3000A Main with using the 800A ATS?? The reason I want to feed the building is that, the current life safety loads are on batteries so they aren't separated into separate panels or circuits. :?