The whole scheme utilizes paralleling gear (circuit breakers and some simple relaying scheme - i.e. no ATS).
My concern is that no robust PLC control is in place and long control wiring running hundreds of yards between various relay panels is so unreliable (in long term), consequently an...
Thanks for quick replies...I see an installation where the primary backup generator is being backed-up (with an identical machine)...both on AUTO mode and several seconds of time delay between loss of utility and loss of primary generator.
What is the right fault current calculation method? If...
Hi all
I was wondering if there is an explicit statement in our professional literature (NEC, IEEE, IEC) about treatment of emergency standby generators (e.g. in AUTO mode) when calculating short circuit currents.
Are we allowed to ignore contribution from those machines?
Cheers
BH
