W
William
- Jan 1, 1970
- 0
I recently hosted a music even on my farm. (They needed 3phase which I have.
240 v per phase.)
When I read the meters the following day, they all worked out at 53 Kw.
That's 3 separate meters.
I thought that kinda strange, as all the equipment (lights, sound stuff) was
single phase. Further investigation showed that the sound guy had a problem
with the EL (GFI) tripping, so what he did was use the safety earth as a
neutral!
Ok, I understand that the neutral is bonded to the safety earth at the
service entrance, but I've got a couple of concerns and queries:
1) Why did this stop the GFI tripping?? (Surely this should have guaranteed
that it tripped?)
2) Doesn't this indicate there is something wrong with the connection setup?
Everything works fine though.
3) Why did every meter show an identical load?
4) Should I be worried?
240 v per phase.)
When I read the meters the following day, they all worked out at 53 Kw.
That's 3 separate meters.
I thought that kinda strange, as all the equipment (lights, sound stuff) was
single phase. Further investigation showed that the sound guy had a problem
with the EL (GFI) tripping, so what he did was use the safety earth as a
neutral!
Ok, I understand that the neutral is bonded to the safety earth at the
service entrance, but I've got a couple of concerns and queries:
1) Why did this stop the GFI tripping?? (Surely this should have guaranteed
that it tripped?)
2) Doesn't this indicate there is something wrong with the connection setup?
Everything works fine though.
3) Why did every meter show an identical load?
4) Should I be worried?