Originally Posted by ROBERT CROSS
.......the electrical output, would remain the same @ a given RPM.
Originally Posted by jdalrymple
I don't believe this is true.
Electrical current demand places more load on the generator, that is why the engine speeds up when a heavy load comes on.
You guys are not disagreeing with each other; you're just missing each other's points.
As the load on the generator increases, engine RPMs do go up. That is true. BUT, for a constant electrical load, the generator will run at the same RPM regardless of which fuel it's using. It may take more of one fuel or less of another to make those RPMs
To that extent at least, you're both right.
Most generators are happiest when running somewhere between 50% and 75% of their rated load. That range band covers the sweet spots for both the horsepower and torque curves of most small engines.