AC Watts vs DC Watts
Are the rated inverter AC watts just V*A or are they an RMS average? And would the DC wattage required to drive the inverter's AC watts equal the AC Watts? (less efficiency losses) Elsewhere I'm...
Forum Discussion
Inverters are rated in AC watts or AC VOlt amps (if it says Watts I assume it means watts)
What, you ask is the difference..... Something called Power Factor.
A motor drawing 10 amps at 120 volts is 1200 watts right.. Wrong if the power factor is 0.5 it's only 600 watts. (Power factor is between zero and 1 inclusive or may be expressed as percentage zero to 100) I've heard of a case of ZERO. only one. Motor did not turn, Lots of Amps. 440 volts. but it did not turn.. Phase angle was exactly opposite.. I know the technician who fixed it. and have seen the motor.
What, you ask is the difference..... Something called Power Factor.
A motor drawing 10 amps at 120 volts is 1200 watts right.. Wrong if the power factor is 0.5 it's only 600 watts. (Power factor is between zero and 1 inclusive or may be expressed as percentage zero to 100) I've heard of a case of ZERO. only one. Motor did not turn, Lots of Amps. 440 volts. but it did not turn.. Phase angle was exactly opposite.. I know the technician who fixed it. and have seen the motor.
