Hughes RV220-50 really working?
Does anyone know how this autoformer really works?
I ran both phases up through a dog bone on a Variac tonight and watched L1 switch to boost around 93-95 volts, and the switch to bypass a little above 115vac just as the book says. However, measuring L2 showed it in bypass at all times. This test was unloaded.
I thought these were two transformers running independently, but see that if I only power up L1, L2 also has voltage on it's input. But looking at the outputs, they follow whatever input is powered.
These results don't sound correct, but doing a load test is difficult. I would expect L1 & L2 to act the same. Shouldn't they?
I ran both phases up through a dog bone on a Variac tonight and watched L1 switch to boost around 93-95 volts, and the switch to bypass a little above 115vac just as the book says. However, measuring L2 showed it in bypass at all times. This test was unloaded.
I thought these were two transformers running independently, but see that if I only power up L1, L2 also has voltage on it's input. But looking at the outputs, they follow whatever input is powered.
These results don't sound correct, but doing a load test is difficult. I would expect L1 & L2 to act the same. Shouldn't they?
