Introducing the Honeywell Wind Turbine

[offdalip]

marine standards are much higher than automotive standards,


your engine quits at sea , well..............

[opsec]

I wonder if I could fit a marine engine into my Chevy.

[offdalip]

basically the windings on an auto alternator are not self exciting, like a genny , they can lose the ability to generate electricity.

although you can bring them "back to life" by another generator.

a self exciting alternator will always generate the current to bring itself up to full capacity.

Nothing is left to chance at sea except for human error and climate changes

[offdalip]

I wonder if I could fit a marine engine into my Chevy.

geez, I didnt say a marine motor ???????   A marine alternator !!!!!!!

[opsec]

I know you didn't say motor, but this aside got my mind ruminating in that direction.

[Mike]

In the late 1970s I converted an old car from generator to alternator.

The alternator didn't work.

I was told that it didn't work because I had to excite the field.  They said that I needed more resistance; that the idiot light did not provide enough resistance, and that I should go to radio shack; buy a resistor; and solder it into the idiot light circuit.  I did that and the alternator worked!!!!

So, the question: It seems like two things are needed to excite a field: some electricity and some resistance.  Is that right? 

So does a marine alternator have an internal resistance-circuit,...  and some kind of internal battery??

[offdalip]

I don't know what the internal wiring schematic of a marine alternator is but worth a look

So, the question: It seems like two things are needed to excite a field: some electricity and some resistance.  Is that right?

from the articles I've seen , an external electrical field is enough to excite a "drained" alternator. I think as little as an electrical drill will generate the needed
"jump start" for this.

I'll have to look up the articles

[Ryder]

Most alternators need a excitation volatage. The spinning core has windings that a voltage is applied to to create a electro magnet. This electromagnet sends its field  of magnatism thru the stationary windings of the alternator and viola electricity is produced.
The way to have a self exciting alternator, such as is in most portable generators is to have some sort of permanent magnent that generates a excitation current.
 Just a hint here, most older smaller japanese motorcycles have a permanent magnet excited alternator with a 12 volt regulator. So don't throw away that junk bike. It might just contain a nice little 100 watt 12 volt alternator that you could power up with wind or water or converted bicycle.

[Mike]

Thanks, Ryder and offdalip.

So, in my old car, current & resistance were needed to excite the field.  "Excite the field" means a current creates a magnetic field.  Old Japanese motorcycle alternators quite often had an internal magnet, which provided all of the excitement necessary.

So, I'll bet that among other things, one of the things that makes a marine alternator 'marine' is an internal magnet....

[offdalip]

So, I'll bet that among other things, one of the things that makes a marine alternator 'marine' is an internal magnet....

w/o looking it up, that would be my assumption as well

[Mike]

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[ADSmith]

Add a few golf cart batteries and I'll have enough electricity to power a radio, a computer, a water pump, and some lights. That's about all I need.

Better make that Nickel -Iron batteries if you want them to last more than a few years.  They can last 100+ years if taken care of (which means kept full of clean water).  Unfortunately they are not made domestically anymore, so they have to be imported from China. $$$$

Here's where to get them.
http://www.beutilityfree.com/content/index.php?option=com_content&view=article&id=44&Itemid=129

All about them.
http://en.wikipedia.org/wiki/Nickel-iron_battery

[opsec]

  for ADSmith.

[offdalip]

Better make that Nickel -Iron batteries if you want them to last more than a few years.  They can last 100+ years if taken care of (which means kept full of clean water).  Unfortunately they are not made domestically anymore, so they have to be imported from China. $$$$

Here's where to get them.
http://www.beutilityfree.com/content/index.php?option=com_content&view=article&id=44&Itemid=129

All about them.
http://en.wikipedia.org/wiki/Nickel-iron_battery

I've got a whole bunch of those;;;;;

 it takes a whole lotta patience from the time you order them to when they are actually delivered

[Atash Hagmahani]

They can last 100+ years if taken care of (which means kept full of clean water).

Wow. I didn't know such a thing existed. I learn a lot from you guys!