FMCA has a very good explanation on how various devices will protect from voltage problems.
It is also a good write-up on different voltage problems that are out there to haunt RVers and how they can damage things.
To quote a piece from the article:
"it's not a matter of whether damage from power issues will happen, but when"
It describes why over / under voltage protectors like Progressive Industries EMS will cover a wide range of anomaly's.
Article is attached.
I like my ems progressive that I installed in the RV so much, I bought another to install in the boat!
Yes the info was good.
We have a park we go to in the mountains around la that has a older 30 amp power pedestal system.
Only place I normally hook up the autoformer and the Progressive EMS mentioned
Around dinner time the voltage normally dropped below the 104 volts the progressive would have shut it off at,
So the autoformer boosts the volts enough to not have the EMS cut off the power for its two minute off cycle.
The experienced owners out there know and probably do this already.
Would have to have really bad power to have the EMS kick off the power after the autoformer I would think
Is anyone using 12 volt surge protection?
Don't believe so. Never heard of one.
There are several on the internet. One clips voltage at 14.5 and another at 18 volts. It's a TVS diode that connects between the + and - on the battery or alternator.
It appears the new cars may have this feature built into the 12 volt system to protect all the electronics in them.
All new to me but sounds interesting.
Surge protection should extend the life of all solid state equipment like engine, transmission and HWH computers and anything else with solid state items in them.