M
Maybe I have just confused myself all these years and it is really simple but I don't see it. We have always grounded the neutral on the secondary of any transformer we use in our panels. I have two questions for someone related to it.
First: I can find no reference to what is required for the grounding of the neutral on secondaries in the NEC or NFPA79. I am never sure what to ground or even if it should be grounded. Can anyone directed me to the section of the code requireing this or not?
Second: Why is it grounded? I know without it you get floating voltages but I try to analyse what it is there for and get confused. It seems that tieing a current carrying conductor to ground would short it out. Is there any mathematical models I can look at to explain what is going on?
First: I can find no reference to what is required for the grounding of the neutral on secondaries in the NEC or NFPA79. I am never sure what to ground or even if it should be grounded. Can anyone directed me to the section of the code requireing this or not?
Second: Why is it grounded? I know without it you get floating voltages but I try to analyse what it is there for and get confused. It seems that tieing a current carrying conductor to ground would short it out. Is there any mathematical models I can look at to explain what is going on?