Jim, I've been engineering electrical systems since 1962. You are wrong. He must ground the tap where he gets the "neutral" and provide some type of fuse or circuit breaker protection on the "hot". O
Not on your life! One never grounds the wiper of a variac (autotransformer). Connecting a 120 volt load between the center tap of a primary and one load line is EXACTLY like an autotransformer. Ther
ORIGINAL MESSAGE: REPLY: I agree he must fuse both "hots", but why would he have to ground the center tap of his transformer? If I understand his circuit right, the center tap is simply floating, hav
You understand correctly, Bill. First, it is important to understand the difference between LOAD equipment and DISTRIBUTION equipment. Both of the electricians commenting on (or quoted) in this threa
Not on your life! One never grounds the wiper of a variac (autotransformer). Connecting a 120 volt load between the center tap of a primary and one load line is EXACTLY like an autotransformer. There
No, it's simply one of many possible situations that the NEC is written to protect against. If I had time, and it was worth the effort, I could cite MANY examples of people being killed by unsafe ins
Lets stick to the subject as started, ham amplifiers. Leave out ancedotal chatter about church tubs, double wides and other off topic items certain to get George upset. Carl _________________________