Re: (ET) Today's lessons with heavy snow

[John Jeno <jjjeno hotmail com>]

I have been running the front lift on 36 volts for over six years.  No 
problem.  Even when used for snow blowing. 

Sent from my iPad

On Dec 22, 2012, at 1:18 PM, "The CZ Unit" <cz alembic crystel com> wrote:

> On 12/22/2012 11:30 AM, Chris Tromley wrote:
> 
>> For the lift, how big a deal is it to just run it on 36V?  If it only
>> runs for a few seconds at a time and has plenty of cool-off time, why
>> would it hurt?  If it is a problem, I wonder if you could use a cheapo
>> off-the-shelf scooter controller?
> 
> Honestly? I don't know. It probably would be ok, the problem is the lift 
> current breaker would probably fuse instantly if it tried to open due to 
> overload, that would be a problem.
> 
> Hm. Actually I have a bunch of apart-lift motors, I'll give it an honest 
> shot. The question is how do we current-limit it so the overload can 
> work? Maybe bypass it completely and use a 5 amp circuit breaker instead 
> of a fuse? What would be a good auto-reset 5-10 amp circuit breaker?
> 
>> How common are 36V-to-12V DC/DC converters that would be suitable for
>> the lights?  Are there any 48V input models that would still work with a
>> sagging 36V pack?
> 
> I used to use a Vicor DC-DC that would put out 12 volts for the um 
> E-meter and lights. But one morning I came out and found it had 
> literally blown up, which was odd. Might have been over-voltaged, but it 
> should have been able to handle up to 50 volts input.
> 
> Where I really need to limit current is on the sweeper. The motor on 
> that is just too darn fast, it beats up the brushes and the grass. Maybe 
> I could get a much smaller pulley or something.
> 
> C
> 
> 
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