How Big a Gen to Run a Converter? Some Info.
EDIT: some of my earlier posts in this thread have the wrong idea. As more info came in later, things got less confusing--sort of! :) --------------------- Another look at this topic. It is n...
Forum Discussion
Perhaps every KAW does not show input watts equal to output watts.
Early in the thread we had these numbers for road-runner's WFCO 9855:
"DC volts 14.55, DC amps 41.2, DC watts 599
AC volts 119.2, AC amps 8.3, AC watts 706, AC volt-amps 992, pf 0.7
Crunching the numbers, efficiency in terms of watts is 84.8%,"
So in this case the KAW input watts was not the same as the output watts as seems to be the case with Mr Wizard's KAW and his PD70
Their PFs were about the same, 0.70 vs 0.68, so trying proportions on output vs VA required we get:
599 and 992 vs 918 and 1338 where 992/1338 x 918 = 680 (not 599)
So what are road-runner and Mr Wizard doing differently?
Early in the thread we had these numbers for road-runner's WFCO 9855:
"DC volts 14.55, DC amps 41.2, DC watts 599
AC volts 119.2, AC amps 8.3, AC watts 706, AC volt-amps 992, pf 0.7
Crunching the numbers, efficiency in terms of watts is 84.8%,"
So in this case the KAW input watts was not the same as the output watts as seems to be the case with Mr Wizard's KAW and his PD70
Their PFs were about the same, 0.70 vs 0.68, so trying proportions on output vs VA required we get:
599 and 992 vs 918 and 1338 where 992/1338 x 918 = 680 (not 599)
So what are road-runner and Mr Wizard doing differently?
