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Old 12-31-2018, 03:10 PM
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Quote:
Originally Posted by LordGothington View Post
Agreed.



So, perhaps the problem is trying to use an alternator that is designed for use with an engine. What is needed is an alternator that has peak performance in the 700-2000RPM range.

I'm thinking I need to look at alternators designed to be used with lower RPM applications such as wind power. Something like this,

http://www.windbluepower.com/Permane...d_p/dc-512.htm

A direct drive system would be nice to minimize parasitic losses. But if I need to be able to disconnect the load, then maybe a lockup torque converter could be used?
You are going to end up spending 2 times the money for something half as good as a generator designed for the purpose.
That said, the best high output DC system I know of was someone using an alternator from this company - http://www.electrodynealternators.com/e-series - directly driven off their crankshaft with an extension shaft. No way would most marine engines - and especially the A4 - take the side loads these beasts would have if they were belt driven. IIRC, the boat was getting either 200 or 400 amps at 24 volts. This company has 12, 24, 32, and 48 volt versions.
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