We're living at a good time for options as regards repowering a boat to electric…I've been running mine now with a 48v ETEK brush motor and an ALLTRAX AXE4834 controller (e.g. this one:
http://www.ebay.com/itm/New-AXE4834-Alltrax-Motor-Controller-AXE-4834-300-Amp-/272198962683?hash=item3f60528dfb:g:F1YAAMXQAF5RgOWw ) since 2003 without any hitches.
I'd love to switch to one of the other options, but there's little incentive for me J.
From: electricboats@yahoogroups.com [mailto:electricboats@yahoogroups.com]
Sent: Tuesday, March 28, 2017 6:02 PM
To: electricboats@yahoogroups.com
Subject: Re: [Electric Boats] Re: Upgrading to 3 phase from 180 dc 3hp Leeson with Kb controller
Hey there,
I am using Curtis 1268-5501 controllers in my twin driven tug under construction. They are a bit pricy, in the $700-1200 range. I bought a pair of fried ones and had FSIP rebuild them, good as new. It cost me about half of the new or eBay price. I even have a couple spares. Might consider selling one. I have about $375-400 in them. I know there are a lot of controllers out there, Kelly, Chinese, Curtis, whatever... I am pleased with the Curtis. And the 1268 is good for regen in your case. Hardy unit, and turnaround is usually less than two weeks in a worst case. FSIP is great to work with too. I haven't had a chance to test my boat in water yet, so I can only tell you what I have seen. FYI, about 75% of the NEVs and golf cars use Curtis in my estimation. That is my 2-bits. It is worth just what you paid for it...
Dan
From: orest@albernicharters.com [electricboats]
Sent: Monday, March 27, 2017 11:01 PM
Subject: [Electric Boats] Re: Upgrading to 3 phase from 180 dc 3hp Leeson with Kb controller
Huge advantage: HPEV AC-9 3 phase would regenerate my 48 volt bank while under the big diesel. This doesn't apply to most folks here because sailors wouldn't have a dig diesel and an electric motor.
Curtis controler choices between 450 and 600 amps? My requirements aren't that great 2.8 knots into a bit of wave may only take under 1.5 - 1.7 KW touching 2KW occasionally. Will I kick myself for not getting a bigger motor? I'll be using it all day and intend to get an automatic cooling fan. Then there are the oil cooled systems ????
Is the holy grail in here somewhere?
Posted by: "Myles Twete" <matwete@comcast.net>
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