Posted by Gigawatt on October 10, 2003, 6:17 pm
Why grounding your inverter is a good idea...
It was raining all day today here in Houston.... the rain had filled my
water catchment tanks to overflowing... while I was looking at the open top
of one of my tanks, I touched the fiberglass screen on top to shake the
water droplets off.... I felt a tingle in my finger... I touched it again,
and again I definitely felt an small electrical charge from the damp
Fiberglas screen tank cover...
So I went into the house and got my old digital volt meter.... I held one
terminal in my hand and touched the screen with the other terminal.... it
read 26 volts on DC and 65 volts on AC....
I had an old three pronged plug-in socket tester that uses LED lights to
show if the socket is properly wired, I plugged the socket tester into the
second output where the submersible water pump motor is plugged in.... and
the tester showed that the 'Open Ground' LED was on.... so, it appeared,
that the Inverter was not grounded, and the Submersible water pump was not
grounded, either...
I checked the inverter and sure enough there wasn't a ground wire
connected... apparently when I changed inverters, I forgot, and didn't
re-connect the earth ground wire... I have a copper rod in the ground
outside, with a #10 wire coming inside.... the connector on my old inverter
has a screw lug to attach the a bare ground wire.... but this newer Costco
inverter has only a screw to connect the ground and this screw needs a ring
connector.... so I had to solder a ring connector to the ground wire so that
it can be screwed on to the inverter.... and so I did that.... I soldered on
the ring connector, and screwed the ground wire to the inverter...
With the ground wire connected, I plugged in the electrical tester again,
and the Open Ground LED light was off..... so I went back outside to the
water tank with my volt meter and measured the voltage.... there was no
voltages either on AC or DC.... evidently, any induced voltage being fed
through the ground wire, into the water catchment tank through the
submersible motor, is now earth grounded and when I touched the wet screen,
I could not feel any electrical currents...
I guess the moral to this story is, to pay attention to grounding your
inverter.....
Gig
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Posted by Stormin Mormon on October 11, 2003, 4:58 pm
My inverter says that if the white and ground wires are connected, that the
inverter shuts off. No back feeding with this one......
--
Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.org
.
.
Why grounding your inverter is a good idea...
It was raining all day today here in Houston.... the rain had filled my
water catchment tanks to overflowing... while I was looking at the open top
of one of my tanks, I touched the fiberglass screen on top to shake the
water droplets off.... I felt a tingle in my finger... I touched it again,
and again I definitely felt an small electrical charge from the damp
Fiberglas screen tank cover...
So I went into the house and got my old digital volt meter.... I held one
terminal in my hand and touched the screen with the other terminal.... it
read 26 volts on DC and 65 volts on AC....
I had an old three pronged plug-in socket tester that uses LED lights to
show if the socket is properly wired, I plugged the socket tester into the
second output where the submersible water pump motor is plugged in.... and
the tester showed that the 'Open Ground' LED was on.... so, it appeared,
that the Inverter was not grounded, and the Submersible water pump was not
grounded, either...
I checked the inverter and sure enough there wasn't a ground wire
connected... apparently when I changed inverters, I forgot, and didn't
re-connect the earth ground wire... I have a copper rod in the ground
outside, with a #10 wire coming inside.... the connector on my old inverter
has a screw lug to attach the a bare ground wire.... but this newer Costco
inverter has only a screw to connect the ground and this screw needs a ring
connector.... so I had to solder a ring connector to the ground wire so that
it can be screwed on to the inverter.... and so I did that.... I soldered on
the ring connector, and screwed the ground wire to the inverter...
With the ground wire connected, I plugged in the electrical tester again,
and the Open Ground LED light was off..... so I went back outside to the
water tank with my volt meter and measured the voltage.... there was no
voltages either on AC or DC.... evidently, any induced voltage being fed
through the ground wire, into the water catchment tank through the
submersible motor, is now earth grounded and when I touched the wet screen,
I could not feel any electrical currents...
I guess the moral to this story is, to pay attention to grounding your
inverter.....
Gig
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Posted by mark Ransley on October 11, 2003, 9:39 pm
We needed that,,, Mormon, thanks
Hey Stormin , You posted on Flashing Kids at Playgrounds , Well
here we just ___...__ folks like that , Gone ......