Autoformer test a "back yard" report
Hi all, The equipment: Sola Basic 4000 autoformer PF 0.98 Magnum hybrid 3012 inverter PF corrected 1200 watt water heater 325 watt absorption fridge 13500 BTU Dometic ducted roof air...
Forum Discussion
Hi,
The 951 is running watts for the air conditioner only. I have seen up to 1900 running watts on the same air conditioner in a campground on a 30 amp circuit where I was deliberately forcing the Magnum inverter to do voltage support (I do not recommend doing this, as the Magnum had a catastrophic failure later in the summer).
I think the power factor on the Dometic must be pretty lousy. For the resistance load of 1525 watts @ 114 volts equals 13.3 amps, and load support doesn't trigger.
I know my Microwave draws 1591 watts so perhaps I'll add it to the mix.
The reason I am testing in this location is because I know from past visits that the 15 amp shore power is extremely weak with large voltage drops under loads such as a toaster.
The 951 is running watts for the air conditioner only. I have seen up to 1900 running watts on the same air conditioner in a campground on a 30 amp circuit where I was deliberately forcing the Magnum inverter to do voltage support (I do not recommend doing this, as the Magnum had a catastrophic failure later in the summer).
I think the power factor on the Dometic must be pretty lousy. For the resistance load of 1525 watts @ 114 volts equals 13.3 amps, and load support doesn't trigger.
I know my Microwave draws 1591 watts so perhaps I'll add it to the mix.
The reason I am testing in this location is because I know from past visits that the 15 amp shore power is extremely weak with large voltage drops under loads such as a toaster.
mvas wrote:
You stated 951 Watts for the "motor".
Is that the Running Watts or the Starting Watts ?
The Starting Watts for a motor, can be 2X to 3X the Running Watts
2 x 951 Running Watts = 1,902 atarting Watts
3 x 951 Running Watts = 2,853 Starting Watts
Power Factor is usually a smaller issue,
while the In-Rush Starting Watts is the larger issue here.
