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How big is the battery? Thinking Amphour capacity.Anyone have a circuit for a manually-adjustable, or even automatic regulator
to control a car alternator?
Application is deep-cycle battery charging using 3-5HP small petrol motor.
Would the standard regulator that is used on a truck be suitable? It is----- Original Message -----
From: "Terryc" <newsonespam-spam@woa.com.au
Newsgroups: aus.electronics
Sent: Thursday, March 29, 2007 12:31 AM
Subject: Re: Adjustable alternator voltage regulator
My battery banks are 900AH @ 24V (3 strings x 12 batteries x 300AH)
At C/10, I'm looking at 90A @ 24V (nom.) or about 1KVa, up to 28V for an
equalisation charge occasionally. Allowing for losses in the alternator,
drive belts, etc., of about 30% then I'll need at least 3200W. People
who've done similar things seem to need about double the engine HP. to
electrical power, so 3 to 5 HP seems about right.
This is the sort of thing I want to do, but with an automatically reducing
field current in response to the increasing battery voltage -
www.homepower.com/files/mark8.pdf
Thanks
Coonabarabran eh? Say hello to my Uncle Max for me ;-)Chris -
Not really, due to need for equalisation charge of up to 30VDC, every so
often, and need to charge solar batteries at a slightly higer voltage than
in vehicles, otherwise batteries take a very long time/never come fully up
to charge.
Thanks for the thought, though
Marcus, in the bush @ Coonabarabran, with an overcast day and rapidly
emptying batteries!
(Will have to go start (240V ) generator......
Yep, that seems right to me.----- Original Message -----
From: "Terryc" <newsonespam-spam@woa.com.au
Newsgroups: aus.electronics
Sent: Thursday, March 29, 2007 12:31 AM
Subject: Re: Adjustable alternator voltage regulator
My battery banks are 900AH @ 24V (3 strings x 12 batteries x 300AH)
At C/10, I'm looking at 90A @ 24V (nom.) or about 1KVa, up to 28V for an
equalisation charge occasionally. Allowing for losses in the alternator,
drive belts, etc., of about 30% then I'll need at least 3200W. People who've
done similar things seem to need about double the engine HP. to electrical
power, so 3 to 5 HP seems about right.
I am guessing that you are after a 24V version of the electronicThis is the sort of thing I want to do, but with an automatically reducing
field current in response to the increasing battery voltage -
www.homepower.com/files/mark8.pdf
umm, interim step is if you have the motor and alternator/generator, howMarcus, in the bush @ Coonabarabran, with an overcast day and rapidly
emptying batteries!
Would a current limited constant voltage regulator suffice? If so, I'dMy battery banks are 900AH @ 24V (3 strings x 12 batteries x 300AH)
At C/10, I'm looking at 90A @ 24V (nom.) or about 1KVa, up to 28V for an
equalisation charge occasionally. Allowing for losses in the alternator,
drive belts, etc., of about 30% then I'll need at least 3200W. People who've
done similar things seem to need about double the engine HP. to electrical
power, so 3 to 5 HP seems about right.
This is the sort of thing I want to do, but with an automatically reducing
field current in response to the increasing battery voltage -
www.homepower.com/files/mark8.pdf
Thanks
LOL, thought everybody knew everyone in Coona ;-)Chris ~
Don't think I know him, actually - sorry!
Amazing how often Coona seems to crop up in films, etc - Spider and Rose,
Stone for instance - many people seem to know it or have rellies/friends
here.
123 wrote:
Chris ~
Don't think I know him, actually - sorry!
Amazing how often Coona seems to crop up in films, etc - Spider and Rose,
Stone for instance - many people seem to know it or have rellies/friends
here.
LOL, thought everybody knew everyone in Coona ;-)
Chris.