UPS contribution to system
UPS contribution to system
(OP)
I am doing a short circuit and load flow study for a system. When I ran the ETAP software, I notoced UPS sytem can cause the voltage rise and it does little contribution to the system short circuit. is it right?





RE: UPS contribution to system
I use SKM and it doesn't model a UPS, which is ok, because I get worst case results considering the bypass path.
A UPS output is limited during a fault to about 300%, so it transfers to bypass to help clear the downstream OCPD.
RE: UPS contribution to system
With a bypass, the SC response is basically the same as if the UPS was not there and the system was fed via the mains.
RE: UPS contribution to system
raghunath_n00@rediffmail.com