Andrew & Kate Lamb
A little bit off googling confirms that:
“The two factors are related as per the following formula –
Generator Frequency (f) = Number of revolutions per minute of the engine (N) * Number of magnetic poles (P) / 120
Conversely, P = 120*f/N
As per the above formulae, a 2-pole generator producing an output frequency of 60 Hz has an engine speed of 3,600 rpm. To change the output frequency to 50 Hz for the same generator configuration, the engine speed needs to be reduced to 3,000 rpm. Similarly, for a 4-pole generator, an engine speed of 1,800 rpm produces output of 60 Hz. Reducing the engine speed to 1,500 rpm yields an output of 50 Hz.”
"amelyachtowners@..." <amelyachtowners@...> on behalf of "amelyachtowners@..." <amelyachtowners@...>
Think about it a bit; the mathematical relationship is wrong if we are to use your suggestion.
ABSOLUTELY, 50 Hz is 1500 rpm. 60 Hz is 1800 rpm.
Fair winds to you my friend!
Eleuthera, SM 007, Madeira