alternator question
If an alternator is rated 200 amps,why cant they tell you at what RPM this rating is good.At idle,650rpm, or at cruising,1950 RPM. If you get a diesel rig,there is a high idle setting to get more amp...
Forum Discussion
What you are asking for is an ALTERNATOR OUTPUT PERFORMANCE CURVE. The term is used and understood industry wide.
To cut to the chase, go online or to the telephone, and query OEM the MANUFACTURER of your alternator for the output performance curve. It is a graph showing speed vs max output potential.
COLD output is considerably higher than HOT output. It's a fairly useless value, but if COLD output is all you can get, so be it. Just don't bank on getting COLD output performance when the alternator is loaded. If you're going to charge batteries while stationary, raise the hood. I even placed a 12 volt fan blowing down on to the alternator.
For extremely technical jargon, dealerships remind me of trying to discuss phasor algebra with a chimp.
To cut to the chase, go online or to the telephone, and query OEM the MANUFACTURER of your alternator for the output performance curve. It is a graph showing speed vs max output potential.
COLD output is considerably higher than HOT output. It's a fairly useless value, but if COLD output is all you can get, so be it. Just don't bank on getting COLD output performance when the alternator is loaded. If you're going to charge batteries while stationary, raise the hood. I even placed a 12 volt fan blowing down on to the alternator.
For extremely technical jargon, dealerships remind me of trying to discuss phasor algebra with a chimp.
