Now I need to find cheap enclosures that will hold 750/1000/1500 XL and up to 3 external packs. truck tool boxes always end up being like an inch short one direction
On Thu, Jul 8, 2021 at 3:03 PM Nate Burke <[email protected]> wrote: > We pulled 2 circuits to the top, one behind the UPS and one not. Then if > I ever wanted to put in a cabinet with HVAC, or run some sort of motor > load, I wouldn't have to worry about the UPS handling it. Both just come > out to Male plugs at the bottom. Site has been running for 9 years without > issue. I've never tried a powerline behind a UPS. Good to know that it > works. > > On 7/8/2021 2:39 PM, Steve Jones wrote: > > we currently will stay AC up top mostly to various meanwell DC power > supplies. Everything that is AC is internally DC now anyway, with the > exception of the fans, but those can be swapped. Nate, sounds like > youre already doing pretty much the same as us so ill take it as probably a > non issue. > > I have an ethernet over powerline adapter on a 100' extension cord off the > APC output to get the management card into the network up top. it seems to > not mind square wave for the multiplexing. > > On Thu, Jul 8, 2021 at 2:18 PM Nate Burke <[email protected]> wrote: > >> If you're running AC up the tower, there are probably wide voltage DC >> transformers (100-240v) for everything up top that would clean it up >> anyway. We have a 200' Grain leg where we have an APC 750 UPS at the >> bottom. 120vac on #12 wire to the top and nothing has ever complained. >> There are several Meanwell AC/DC transformers at the top for 24v/48V, along >> with normal POE injectors (ubnt/cambium). I've never measured the voltage >> drop, but it has never been an issue. >> >> On 7/8/2021 2:07 PM, Josh Luthman wrote: >> >> Are you doing DC up the grain leg or AC? >> >> Josh Luthman >> 24/7 Help Desk: 937-552-2340 >> Direct: 937-552-2343 >> 1100 Wayne St >> Suite 1337 >> Troy, OH 45373 >> >> >> On Thu, Jul 8, 2021 at 10:46 AM Jan-GAMs <[email protected]> wrote: >> >>> It's a square wave which a transformer would clean up. The drop >>> wouldn't change and a buck-boost would up the voltage for the end-point. >>> On 7/8/21 7:15 AM, Steve Jones wrote: >>> >>> We are considering moving our APCs down to the bottom of some of the >>> grain elevators we have our enclosures up top of. There are a multitute of >>> reasons for this, right wrong or indifferent. >>> >>> The concern i have is the voltage drop. The output of APC UPS as I >>> understand is not pure sine wave, but a square wave. Will this impact >>> voltage drop calculations? >>> >>> -- >>> AF mailing list >>> [email protected] >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> >> >> >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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