Forum Discussion
MEXICOWANDERER
Nov 02, 2013Explorer
Isolation transformer with transverse noise isolation does nothing to suppress transients voltage? With 30db of isolation? It is assumed such a transformer would be used with utility power. I tried to keep this in perspective for folks who really and truly believe an "Autoformer" filters transients as well as corrects for voltage irregularities.
With the arrival of inverter-type generators, the days of seeing >10% THD in line output are over.
Take your handy dandy oscilloscope to a busy RV park in the summer months, and watch the fun and games as air conditioner motor-unloading induced transients change an innocent sine wave in the Creature From The Black Lagoon. Then plug in your autoformer or "surge protector" fire up the scope and see what does not happen.
Ever wonder why RV appliances and electronics have a lot shorter lifespan than home electronics? Go outside. Follow the wires connecting your home's service drop to that transformer high up on the pole. Note the transformer. It's what's missing in an RV park. No not "A" transformer. The park has "A" transformer. What's missing is YOUR OWN transformer.
Better brush up on what a full isolation transformer does for a living. One that has bonded ground as well as hot and neutral. They just do not exist to limit total potential load current...
With the arrival of inverter-type generators, the days of seeing >10% THD in line output are over.
Take your handy dandy oscilloscope to a busy RV park in the summer months, and watch the fun and games as air conditioner motor-unloading induced transients change an innocent sine wave in the Creature From The Black Lagoon. Then plug in your autoformer or "surge protector" fire up the scope and see what does not happen.
Ever wonder why RV appliances and electronics have a lot shorter lifespan than home electronics? Go outside. Follow the wires connecting your home's service drop to that transformer high up on the pole. Note the transformer. It's what's missing in an RV park. No not "A" transformer. The park has "A" transformer. What's missing is YOUR OWN transformer.
Better brush up on what a full isolation transformer does for a living. One that has bonded ground as well as hot and neutral. They just do not exist to limit total potential load current...
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,194 PostsLatest Activity: Jan 29, 2025