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@ Krustabas, Thanks, then I have to ask my friend to run an ETAP underground for me. Think big, believe big, act big, and the results will be BIG!

@ GroovyGuy, I am more looking for an open source kind of software to verify my calcs ... Think big, believe big, act big, and the results will be BIG!

Hey guys, I have a fairly simple underground system and want to get the max cable and power that I can run through spare conduit(s). I used to use ETAP but I don't have the license now. Is there any way to get conservative numbers without buying a software for this? (I don't have the soil...

waross, Incoming and outgoing feeders look identical, why do you think the incoming is the bottleneck? Have you had any experience in revamping used gears like this? Is this something that Switchgear manufacturer can inspect and tell if they can do it or not? Think big, believe big, act...

A bit of background on this gear, The city is the owner of this gear and an empty land and they want to see if they can put some modular data centers in it. Data centers can range from 50KVA to even 4MVA and I wanted to advise them on the maximum load that they can put on this gear without...

@ LionelHutz, You are right, only P2 feeds the 1MVA transformer (P1 is spare for future expansion) utility provides the power only on one of the incoming feeders. I only have the following single line but the email that I saw from utility says, "We can provide 6.5MVA on a single feed...

@ RRaghunath, Having 200E fuse in P2, we can get 1.7*12.47kv*200A=4.3MVA out of it and now we are only feeding 1MVA transformer. Why we can't connect another 3.3MVA to P2?

@ davidbeach, You are right, only P2 feeds the 1MVA transformer (P1 is spare for future expansion) utility provides the power only on one of the incoming feeders. Utility provides the power only on one of the incoming feeders and they can provide 6.5MVA on that feeder (we don't have a...

Hi guys, Someone asked me about adding a new load (probably 4MVA to the following switchgear and just looking at the single line and based on the rating I said, it depends on, [ol 1] If swg and breakers are in good condition (I don't know if there is any standard way to distinguish swg...