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Topic: Alternator Output Voltage (Read 998 times) previous topic - next topic

Alternator Output Voltage

Quote
John Twork wrote: I would like to find some kind of an effective voltage regulator that I could put in line between the isolator and the alternator in the event of an alternator failure where it produces high voltage and high amperages, to protect the rest of the system.
I suggest that "others" verify the voltage produced by their alternators at the coach batteries and adjust it to the preferred level.

How is the alternator output voltage adjusted?
Peter & Beth Martin
No Forrest? What have you done?
MC# 15890 until Dec 2016; FMCA #F329677
Cincinnati, OH

Re: Alternator Output Voltage

Reply #2 –
Thanks, Barry.  Great help!
Peter & Beth Martin
No Forrest? What have you done?
MC# 15890 until Dec 2016; FMCA #F329677
Cincinnati, OH

Re: Alternator Output Voltage

Reply #3 –
Quote
From: Barry & Cindy); By the way,  our alternator has a 3-step voltage regulator and will float charge both battery banks through the isolator at a lower voltage after driving a while.
There are many types of voltage regulators that will fit into our Prestolite-Leese-Neville alternators. Some adjustable, some 3-stage, some fixed, etc.

As I read the above, I was under the understanding that the Alternator had built-in voltage regulation which is self adjusting based on demand.  Is this right?
 
I get what Barry B. has in "beamalarm" insofar as a manual adjustment to change the setting for the voltage output from the alternator.
Peter & Beth Martin
No Forrest? What have you done?
MC# 15890 until Dec 2016; FMCA #F329677
Cincinnati, OH

Re: Alternator Output Voltage

Reply #4 –
No, not quite correct.
All 3-step/stage chargers and alternators change output voltage of charge following a specific pre-set pattern, based upon the voltage being sensed. But a greater demand will drop voltage, so in a way your statement is correct.

Re: Alternator Output Voltage

Reply #5 –
Quote
I get what Barry B. has in "beamalarm" insofar as a manual adjustment to change the setting for the voltage output from the alternator. Thanks, Barry.  Great help!

Peter,
Since we were on the subject of Alternators.
I finished up some pages I have been working on and uploaded them.
Maybe they will be of some use to you.

http://beamalarm.com/Documents/removal_and_installation_of_the_102200_voltage_regulator.html

http://beamalarm.com/Documents/alternator_brush_inspection_and_replacement.html

http://beamalarm.com/Documents/alternator_disassembly_and_assembly.html

http://beamalarm.com/Documents/alternator_troubleshooting_on_vehicle.html

The selected media item is not currently available.Barry BEAM #16014
2003 U320 40' AGDS
Beamalarm, Foretravel technical help and specifications
"Whatever the mind can conceive and believe, it can achieve"
 

Re: Alternator Output Voltage

Reply #6 –
Barry,
 
Outstanding stuff.  Thanks so much for the work on this.
Peter & Beth Martin
No Forrest? What have you done?
MC# 15890 until Dec 2016; FMCA #F329677
Cincinnati, OH