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Ralph Mowery Ralph Mowery is offline
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Default Multi-Wire or Edison Circuit questions


"Limp Arbor" wrote in message
...
Question: (fixed type font picture)
L1 N L2
| | |
|____@@_____|____@@_____|
Outlet 1 Outlet 2

Are these statements correct using the above simple MW circuit?


If you lose the neutral and have a lamp plugged into Outlet 1 and
nothing in Outlet 2 the lamp won’t work.


If you lose the neutral and have a lamp plugged into Outlet 1 you will
have the potential of 220V at Outlet 2.


1. If you loose the neutral and a lamp in outlet 1, it will not work if
nothing is in outlet 2. Neither will one in outlet 2 if nothing is in
outlet 1.

2. If anything is connected to outlet one and two at the same time, the
voltage will split depending on the load. The higher the resistance of the
load at one outlet compaired to outlet 2, the higher resistance will have
the most voltage across it. If the loads are exectally equal, they will
both have half the supply voltage across them. That is in your example, if
you put in a 60 watt lamp in each outlet and they both come up to the same,
they will appear normal with 110 volts across each one. If you just put one
lamp in one of the outlets, you will measuer 220 volts ( more like 219.99999
or so) on the other one that does not have a load. As you put a load on
that outlet , the voltage will start dropping. It may reach almost but not
exectally 0 volts, while the other outlets voltage will rise toward 220
volts.