Wiring Size Calculations? - Electrical - Page 3 - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical


Thread Tools Display Modes
Old 07-27-2008, 05:21 AM   #31
Join Date: Jul 2008
Location: NW of D.C.
Posts: 5,990
Rewards Points: 2,000

finally did a spreadsheet

It's 6 AM, so I can't guarantee these numbers, but, for a max of 5% voltage drop:

From turbine, going 1000' to invertor, ~#2 AWG. Using #8 will starve the battery charger circuitry and you won't get anywhere near the battery performance you should be getting.
The DC voltage into the invertor is probably below the spec value for this device. I hope it has not been damaged.

From invertor and going 1400' to load, ~#0 AWG.

At this point, I can't see cable heating [due to the current passing through it] as a problem.

Since you're not paying PoCo for kwh, I don't think there is a payback period for the money you spend on this equipment.

You've already bought the batteries so I'd put the next few dollars into the 1000' cable. The first priority is not abusing the equipment.

Or, we put the invertor/batteries next to the turbine and figure out how to ship 2500w over 2400'. Step-up/step-down transformers are starting to look good.

If you can supply me some prices for copper and aluminum cables, we can trade off the money you will spend for the performance you will get, and show this as dollars per watt or dollars per watt-hour.

You're a paying customer, so see if the turbine people will give you whatever technical data, schematics, application notes, everything on the generator that is driven by the turbine.
I'm especially interested in whether it is a DC gen or an AC gen with rectifiers.
And the voltage vs. current curve(s) for this gen would be good.




Last edited by Yoyizit; 07-27-2008 at 04:16 PM. Reason: added copper and aluminum
Yoyizit is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Wiring diagram for three-way switches with pilot light SaxTeacher Electrical 34 09-15-2013 07:53 AM
Size of whole house fan needed Doug Crf General DIY Discussions 20 02-25-2011 11:29 PM
2x100a sub on service main jambud Electrical 17 03-12-2008 09:31 AM
Replacing wiring in middle of run, ungrounded lighting circuit alexz Electrical 3 07-05-2007 08:53 PM
Knob & Tube wiring - How concerned should we be? hotdiggitydog Electrical 6 04-11-2006 07:52 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1