Autoformer
What would be the proper sequence of using an Autoformer and a surge protector from coach to post?
Forum Discussion
I found through actual disassembly and looking very few "Surge Protectors" are worth a plugged-nickel.
THERE ARE Z-E-R-O DEFINITIONS OF "SURGE PROTECTOR" THAR PROTECT YOU THE CONSUMER! NONE! NADA!
Some have one single tiny metal oxide varistor that wouldn't protect a Steinway piano from a chimpmunk fart, fifty feet away. When on-line the "protection" these con-artist products afford cannot be seen on an oscilloscope.
I notice that some companies like Tripp- lite gave joule ratings as if a joule rating is the last word in transient protection definition. That would be like advertising the specifications for an RV battery by giving forth only Reserve Capacity.
A decent Surge Protector would have a 25K joule pack of varistors wired phase to neutral, phase to earth, and neutral to earth...
THEN
Gas tube disharge devices (2) wired phase to neutal and phase to earth.
PLUS
Bi-directional TVS transient voltage suppressors. Avalanche rectifiers
Phase to neutral and phase to earth.
Not as good of cleaning-up as an isolation transformer but it's light-years better than the huckster garbage I see on the market.
But a handful of MOVs by themselves don't cut it. MOVs do a specific job and that's it and that isgrossly inadequate.
Why don't you write one of the stepped autotransformer companies and ask them if they use gas discharge devices or avalanche TVS devices in their products? I'd love to hear their full-of-BS replies.
THERE ARE Z-E-R-O DEFINITIONS OF "SURGE PROTECTOR" THAR PROTECT YOU THE CONSUMER! NONE! NADA!
Some have one single tiny metal oxide varistor that wouldn't protect a Steinway piano from a chimpmunk fart, fifty feet away. When on-line the "protection" these con-artist products afford cannot be seen on an oscilloscope.
I notice that some companies like Tripp- lite gave joule ratings as if a joule rating is the last word in transient protection definition. That would be like advertising the specifications for an RV battery by giving forth only Reserve Capacity.
A decent Surge Protector would have a 25K joule pack of varistors wired phase to neutral, phase to earth, and neutral to earth...
THEN
Gas tube disharge devices (2) wired phase to neutal and phase to earth.
PLUS
Bi-directional TVS transient voltage suppressors. Avalanche rectifiers
Phase to neutral and phase to earth.
Not as good of cleaning-up as an isolation transformer but it's light-years better than the huckster garbage I see on the market.
But a handful of MOVs by themselves don't cut it. MOVs do a specific job and that's it and that isgrossly inadequate.
Why don't you write one of the stepped autotransformer companies and ask them if they use gas discharge devices or avalanche TVS devices in their products? I'd love to hear their full-of-BS replies.
