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valhalla360

No paticular place.

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Joined: 08/19/2009

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Posted: 06/03/23 06:28pm

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Almot wrote:

AllegroD: 90V is the low voltage cut-off, it can be adjusted. You don't want to run AC devices at 90 or lower. Looking to protect the whole rig.

Below 108v is not meeting spec. 91v and you can expect damage, particularly to motors.

I get below 110v and I switch to generator power.

Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV

Almot

out there

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Posted: 06/03/23 07:08pm

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A curve-ball question: 1000-1200W PSW inverter with auto transfer switch that transfers when AC drops to adjustable 90-105V, not when AC disappears. Long recovery delay would've been nice, I'd rather keep it on inverter longer than switch on-off repeatedly. Is there such a thing, or at least a 30A switch with these features?

Bobbo

Wherever I park

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Posted: 06/03/23 07:19pm

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Almot wrote:

CA Traveler wrote:

Opinion: At $14 it must be a great device. [emoticon]

Sure

...

I like HW30, don't like the price.

Buy quality and you only cry once.

Bobbo and Lin
2017 F-150 XLT 4x4 SuperCab w/Max Tow Package 3.5l EcoBoost V6
2017 Airstream Flying Cloud 23FB

pianotuna

Regina, SK, Canada

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Posted: 06/03/23 08:37pm

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Almot wrote:

Hi Almot,

There are "load support" inverter chargers. Unfortunately they are not "voltage support". That's how I ended up with an autoformer.

Mine is a Magnum 3012. Perhaps some kind soul with a Victron inverter can check to see if they do "voltage support" rather than "load support".

I can "force" the Magnum to do voltage support--but only if I lower the input amperage a GREAT deal. I don't remember the actual numbers but on a 30 amp supply I seem to remember I could set it to limit the shore power to 8 or 9 amps--which then "forced" voltage support.

The Magnum didn't like being "forced". DAMHIK

Another way to protect the RV is to plug in ONLY the converter, and then plug the RV into the output of the inverter. This is known as double conversion. I used to do it regularly when I had a 2500 watt inverter. One of the locations I would visit had a 15 amp breaker that would trip at 8 amps. So would avoid the trip by using double conversion. This trick doesn't work with the Magnum. It has a large surge when it is first plugged in and that blows the reverse polarity fuses. I guess I could try turning on the inverter first--and then plugging in the converter. I wanted to do that when the Magnum would trip GFI outlets.

* This post was edited 06/03/23 08:56pm by pianotuna *

Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.