Although, as previously stated, the pm motors in these two generators are poles apart in performance, both have their advantages.
The Stuart generator needs to be spun at around 4000 rpm to generate 2.5v no load whereas tne industrial generator will generate 2.5v at 500 rpm which is a major difference.
When loaded with a 2.5v lamp the Stuart rpm increases to 6000 while the industrial goes up to 1850. Still a large margin.
So the industrial with its lower rpm to voltage ratio is better for most steam powered applications, able to give better voltage performance and the current output of both is similar. The Stuart being 1A while the industrial is 1.5A.
When running a 2.5v lamp there is very little visual difference due the way the filament glows to produce light.
With an LED, however the Stuart comes into its own needing higher rpm. This means there is no visible flicker whereas the industrial has very visible flicker due to its slower speed. The commutator is the reason, slower speed slower changeove.
So while the imdustrial (or other low rpm to volt ration PM motors) are good for higjer loads at lower speeds,. When it comes to LED,s howver a higher rpm to volt ratio, such as the Stuart, is better.
Home
Search
Today's Posts
Login
Register