Re: Resistance of Oven Element

Hi Chip, Ed, Kristian and everyone,
                           One can indeed blow fuses by connecting an 
inductor (e.g. variac) to the mains alone. The mechanism has to do 
with residual magnetism in the core. If switch-on coincides with a
mains peak of the "wrong" polarity, the core temporarily saturates
losing most of its inductance and presenting a near zero resistance 
to the mains. This is actually a real headache for designers of large 
power amps who particularly choose to use toroidal transformers where
leakage inductance is rather low. I have popped circuit breakers by
simply switching on a variac turned to zero. A matter of luck in 
timing basically.