Power issues with Frank's Voltage Booster

Found this one for $55 shipped. I think I will keep it.

https://www.circuitspecialists.com/variac-variable-ac-ps05kva.html

wa8yxm wrote:
How are you wired

Post---Pi--Franks--RV (Wrong)

Post---Franks---PI--RV (Right)

Yes it is connected in the right sequence.

The PI was not cutting power for low voltage. Franks Superautomatic was cutting power and the PI would then delay power from coming back on as normal. Franks would immediately turn power back on once the load was removed and voltage popped up a bit. This is actually a bad design issue with Franks as there is no delay to restore power and no spread between cut and reconnect.

Just read a post from Forest River forum that Frank Izbinski has passed away at least a year ago :(

I had bought mine direct from him about a decade ago. Picked it up at his home in the Los Angeles area.

time2roll wrote:
Found this one for $55 shipped. I think I will keep it.

https://www.circuitspecialists.com/variac-variable-ac-ps05kva.html

thats 500va, 500watts, 4.8 amps

going going to use it for testing and adjusting Franks ?

can't use it for the RV

Yes, just to get some corrected settings for boost and cut-off.
Already moved the pots a bit... going to be a snap.
Should have done this years ago. Just have not run into such consistent issues until now.

I don't have one of those and have no clue. However, IMO if you can fix the thing as planned, you should archive the fix somehow like with a youtube video or whatever might last, that can will show up as a hit on Goggle for folks with that same problem.

Maybe there is a "legacy" website for that gizmo that you could have it do a link to your fix? Sorry, I am not up to speed on all this new- tech way of doing things, but- whatever I am trying to say. :)

Easy as pie. High cut-off 135, low cut-off 80 (pedestal). Voltage drops to 110 and first boost pops voltage back to 118. Again as voltage continues dropping to 110 the second boost brings it back to 118 again.

The PI EMS will be the primary cut-off for high and low voltages.

Now it will probably be five years before I get stuck several days in a low voltage situation like I was a couple weeks ago.

If someone needs to calibrate an old Frank's booster send a message.

Tested the PI today to verify operations. Comparing with my Fluke meter the PI reads about 1 volt on the high side. Low voltage cut-off is right about 103.0 volts.

This confirms that it was the Frank's Booster that was cutting power too soon. Booster has now been adjusted to keep power on.

I know some think 103 is a bit low for cut-off however at this level things are fluctuating quite a bit and the voltage is not going to sit here for long. Will either pop up a bit or will trigger the cut-off and time delay. I like the way the PI works. JMHO

Good info senor time2roll
I assume you arrived at a logical sequence for ordinal of pot adjustments?