24v or 48v?

Re: 24v or 48v?

Here is the manual for Outback's FW-X240 transformer (PDF download) (it is used in an auto wound configurations for some applications).

We are probably getting to the limits I could guide you on transformer selection without a lot more research on my side. Auto wound tend to be cheaper--but is may not be appropriate for your application (once you have it worked out in more detail).

If you are looking for a larger system--the Xantrex XW Hybrid Inverter does do away with most of the external hardware required for the 120/240 VAC issues.

-Bill

Re: 24v or 48v?

Just Teasing!

I have made very good friends with GeoBytes. You plug in the IP Address at the top of a post, and ~90+% of the time it can give a region of the world of where the poster is from.

It is very helpful as not many people here put their location in their personal profile and so much of solar is based on where you are from. I think it is helpful when we can give a reply that is at least close to where the person lives and not confuse the issue of discussing winter angles on solar panels to shed snow for somebody in Florida.

You, Solar Sailor, keep playing mind games on me! Oklahoma? No sailboat on the gulf or something? It does get hard sometimes to keep track of the posters when several threads are going at the same time.

-Bill

Re: 24v or 48v?

The IP address (up at least until you hit a corporate firewall) is a physical routing address.

The first part is assigned in large blocks to companies by country. The fine grain stuff (down to the last aaa.bbb.ccc.ddd) is the final destination and, I believe is based on self reported locations of the last router and possibly harvesting information collected from users (somebody fill out a form (zip code, mailing address, etc.) with others "near" your IP address, that is correlated with the physical locations given by other IP users in your area).

Usually gets close enough... But some networks use Proxies (like AOL, some wireless networks, large companies) and all of there Internet traffic comes from just a few IP addresses (routers at the edge of their private network)--so it does not work for some classes of users.

Private networks use Network Address Translations (NAT) so that you cannot see beyond their firewalls (good protection against random internet attacks--outside computers cannot access computers behind the NAT unless the request was first made by a computer behind the firewall). I am not a network guy--so I will stop there before I further embarrass myself.

-Bill