work2much wrote:
pianotuna wrote:
work2much wrote:
Went with the Hughes watchdog hardwired on our new 5th wheel. I liked the bluetooth monitor and alerts it sends if there is an issue. I thought about their auto former but we can run a long time without shore power or use the hybrid inverter to boost voltage in load sharing mode.
Hi work2much,
Hybrid inverter chargers do not do voltage support unless you "force" them to do so. This may result in damage to the unit. DAMHIK
According to Magnum low voltage from shore will be raised during load support. Not as an advertised feature by as a byproduct of the inverter adding higher voltage and the two combining.
Hi work2much,
Load support is NOT voltage support. I have a Magnum 3000 hybrid. Trust me. It does NOT do voltage support unless you deliberately lower the input amps, which forces it to do so. When that is done the majority of the load may be coming from the battery bank.
Further, I've spoken to the tech support desk who told me the Magnum product load support is not designed nor intended to do voltage support.
It is true that when connected to a 15 amp source you can prevent the breaker tripping by setting the input amps to 15. That allows you to run a load that totals 24 amps for a time. If, during that time, the battery bank becomes exhausted, the shore power 15 amp breaker will trip. DAMHIK
In my experiments with load support, which were done on a 30 amp pedestal, it was a heck of a hot summer day. I had to reduce the input amps to just 11 amps on the ARC remote before voltage support happens and I stopped when voltage was 107. I had the fridge on propane, and the water heater off. The air conditioner was drawing 1900 watts.
My testing, using my autoformer with a 15 amp circuit which under "no load" was at 100 volts I had 113 volts inside the RV.
shore power 100-->autoformer-->RV 113.
The sola basic autoformer boosts at 110, 100, and 90 volts as it comes from the factory. It is possible to tweak those numbers and I have done so putting the first boost at 113 volts.
I should also mention that my first Magnum with no shore power displayed 120 volts no load. That does drop as the load increases.
The replacement unit does a no load voltage of 122.
The above data was gathered in 'real life' using a watt meter and a kill-a-watt meter.
