Re: loose neutral
What happens when a service looses the neutral?
The first thing is you have to understand how a single phase 240/120 volt transformer supplys power to a house.
The secondary or output of the transformer is a center tap winding.
Between the two outer connections is 240 volts.
Between the center tap (neutral) which is half way inbetween the two outer connections and ether of the outer connection is 120 volts now when the neutral connection is lost between the transformer and the load the load is left connected across the two outer connections on the transformer this of course is 240 volts.
Now if one half of this load is heaver than the other it will have a lower voltage applyed to it the lighter load will have a higher voltage applyed to it. let's say just for an example that between a phase and neutral there was a 10 amp load and between b phase and neutral there was a 20 amp load there would of been a 10 amp load on the neutral when this (neutral) connection was lost it would of shifted the voltage to the lighter load.
This is kind of like a see saw effect
This is how things burn up when a neutral is lost.
Wayne A. From: N.W.Indiana
Be Fair, Be Safe
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