>From PSUI: Traco TSP 360-148 (360w/48V) - $233 Traco TSP-BCM48 - $126
Or, instead of the BCM48, you can use the: Traco TSP-BCMU360 (single 12V battery, selectable 24/48V output, less charging current than the BCM48) for around the same price, I believe. Josh On Thu, Mar 10, 2016 at 9:57 AM, Gino Villarini <[email protected]> wrote: > how much are you paying for this combo? > > On Wed, Mar 9, 2016 at 4:21 PM, George Skorup <[email protected]> wrote: > >> The AD-155 is 150W max load. >> >> What I would do is a Traco TSP 48v power supply (180, 240, 360 or 600W), >> a TSP-BCMU360 in 48v mode and a Mean Well 48 to 24 RSD. The BCMU360 takes a >> 12v SLA and does an internal DC-DC conversion. I haven't had any problems >> with them. I have two in the field right now maintaining 37Ah Deka's. >> >> >> On 3/9/2016 2:06 PM, SmarterBroadband wrote: >> >> That Meanwell sounds right. I will have to see if they make a more >> powerful one? >> >> >> >> *From:* Af [mailto:[email protected] <[email protected]>] *On >> Behalf Of *Mathew Howard >> *Sent:* Wednesday, March 09, 2016 11:39 AM >> *To:* af >> *Subject:* Re: [AFMUG] Small DC Site >> >> >> >> Is there really any advantage to using something like an AD-155B with a >> UPS function over just connecting the batteries in parallel with the load >> to a normal DC power supply and setting the voltage properly? It seems like >> there would be less parts to fail and it'd be easier to add redundancy if >> the batteries were just connected in parallel. >> >> >> >> On Wed, Mar 9, 2016 at 12:52 PM, Chuck McCown <[email protected]> wrote: >> >> A pair of power supplies that are capable of pulling the load and >> charging the battery. >> >> >> >> For example, if you needed 200 watts for your 24 volt loads, you need 8.3 >> amps. Round that up to 10 amps. >> >> Then you have to decide how long you want this thing to last without >> commercial power. I would think 24 hours is a minimum. So 10 amps x 24 >> hours is 240 amp hours of battery. >> >> It is always a safe figure to charge a battery at .1C or 10% of its >> capacity or less. That would be 24 amps to charge the batts after a power >> outage, plus 10 for load = 34 amps of power supply. You could get by with >> 20 amps, just will take a bit longer to charge. >> >> >> >> Lots of 20 amp 28VDC power supplies out there. >> >> Rule of thumb double your load power or more to size the charger. >> >> >> >> *From:* SmarterBroadband <[email protected]> >> >> *Sent:* Wednesday, March 09, 2016 11:45 AM >> >> *To:* [email protected] >> >> *Subject:* [AFMUG] Small DC Site >> >> >> >> What are people using to power small DC sites. Option 1 up to 150 - 200 >> Watts, option 2 up to 300 – 400 Watts. I’m looking for a DC UPS that can >> charge attached batteries. Need to have 24 and 48 volt. >> >> >> >> >> >
