T&T: (no subject)

wabailey135@aol.com wabailey135@aol.com
Wed May 30 10:40:36 EDT 2007


Jeff:



HP = 746 wattsB  or about 3/4 KW.



Watts = Volts x Amps



This is true with both 12 v DC and 110/240 AC (single phase only)



So, for your 25 amps on the alternator:

14 volts (charging voltage)x 25 amps / .90 (efficiency of alternator and belt
drive) = 388 watts or about .5 hp (remember 1hp = 746 watts)

to see how many amps 1 shaft hp from yourB generatorB will provide:

amps= watts/volts

amps = 746/14 x .9

amps = 47

So there you go.

Arlid,

Are you comfortable with belt driving a 120 A / 12 vdc alternator side loaded
with a belt off ofB  that Westerbeak?B  IB  was told that 1 KW was all I could
pull off of my Cat 3208s with a single belt - and that was a healthy belt with
good wrap.B  How about bearing side load on the Westerbeak bearings.B  What
say you wise one?

Wayne
AOL at AOL.com.


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