[Public-List] Yamar 2cyl 15hp

[Glennb]

200 amps!  wow, sounds  more like a sub-station than a charging system.  Maybe a new way to pay for the boat, sell power back to the utility company.

Glenn P

Sent from my iPad

On Mar 15, 2012, at 8:21 AM, "John Birch" <Sunstone at cogeco.ca> wrote:

> Well, I guess the first lesson is don't put a 200 AMP Alt on a 13 HP Motor ; )
> 
> ----- Original Message ----- From: "Mike Lehman" <sail_505 at hotmail.com>
> To: "Alberg 30 Public List -- open to all" <public-list at lists.alberg30.org>
> Sent: Thursday, March 15, 2012 11:14 AM
> Subject: Re: [Public-List] Yamar 2cyl 15hp
> 
> 
>> At the seminar, the presenter had a 200 AMP alternator that he when charging at full rate used 13 HP (his boat, a 39 ft. Pearson, had a 34 HP Yanmar). He had a 3-position switch that he mounted on the engine panel that could be switched to off/full charge/half charge. His point was that you need the ability to 'manage' you electrical systems. He was very good and really understood electrical systems.
>> 
>> -----Original Message----- From: John Birch
>> Sent: Thursday, March 15, 2012 10:46 AM
>> To: Alberg 30 Public List -- open to all
>> Subject: Re: [Public-List] Yamar 2cyl 15hp
>> 
>> If the batteries are low, the Alt output it high, ergo the load on the
>> engine is higher. Don't know how high but it is higher. When the bulk phase
>> has passed and it drops down to low output the load is considerably reduced.
>> 
>> You can hear the difference on some engines. Would never even think of
>> switch off the master switch though. Not worth the risk to the Alternator.
>> 
>> John
>> 
>> ----- Original Message ----- From: "Jeffrey" <alberg30nh at gmail.com>
>> To: "Alberg 30 Public List -- open to all" <public-list at lists.alberg30.org>
>> Sent: Thursday, March 15, 2012 10:05 AM
>> Subject: Re: [Public-List] Yamar 2cyl 15hp
>> 
>> 
>>> I don't understand how this could be? The alternator is spinning regardless
>>> of ignition state or current draw..and the resistance to spin the shaft is
>>> the same..I think.
>>> 
>>> -jeff
>>> 
>>> 
>>> Jeff Fongemie
>>> #116 Seagrass
>>> 
>>> http://picasaweb.google.com/fongemie
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> On Thu, Mar 15, 2012 at 8:59 AM, Mike Lehman <sail_505 at hotmail.com> wrote:
>>> 
>>>> I recently went to a seminar on marine electric systems and learned
>>>> something that was quite interesting...if you have a diesel and the engine
>>>> is in the process of charging the battery, it can take a significant amount
>>>> of HP to run the alternator, depending on the size of the alternator and
>>>> the state of charge on the batteries. But it you need the extra HP to go
>>>> through an inlet, or bridge, or fight some strong current, you can turn of
>>>> the ignition switch, which will turn off the tach and the alternator and
>>>> give you the extra power you may need. The engine will continue to run, but
>>>> you will not be charging your batteries. I have never tried this, and am a
>>>> bit scared to do so. Has anyone ever tried this?
>>>> 
>>>> -----Original Message----- From: Joseph Balderson
>>>> Sent: Monday, March 12, 2012 10:01 PM
>>>> To: Public-List at lists.alberg30.org
>>>> Subject: [Public-List] Yamar 2cyl 15hp
>>>> 
>>>> 
>>>> Has anyone repowered  an A-30 with a Y2 15hp Yamar?
>>>> Baldy3
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>>>> --
>>>> Jeffrey Fongemie
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> <http://lists.alberg30.org/listinfo.cgi/public-list-alberg30.org>
>>>> 
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>> 
>> 
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> 
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