The discussion is about reverse feeding the transformer on the pole.
If you connect your generator to a transformer you can have any voltage you want.
Learn some basics my friend, as you look like a stupid, ignorant, fool.
The discussion was about reverse feeding power through your circuit panel box and out onto the grid. You're the first person to mention a transformer.
That is because the rest of us know how the grid works.
The grid doesn't run at 220V like your house does. There is a transformer (aka pole pig) for every half dozen houses or so.
According to Stormin Mormon :
As I understand it, MOST distribution systems feed 4Kv to the local pole pig. The ones that don't, feed voltages _higher_ than 4Kv.
According to Stormin Mormon :
For the n'th time:
There's a transformer between you and the grid - the "pole pig". The input voltage on it is at least 4Kv, the output 240V (well, actually, split for 2x 120v). If you backfeed your panel box, the input and output of the polepig are reversed. The input, from your generator, is 240V. The output (the grid side) is 4Kv.
If the power plant is _still_ feeding the polepig, sparks fly and things go kablam.
If the power plant isn't feeding the polepig, but there's still significant grid connected to the pole pig, you're trying to feed your neighbors. Probably no kablam, but a generator that certainly doesn't work right.
If the polepig hot wire _broke_ (why you had the generator there), that means that the severed end of the pole pig wire dangling on the ground is at 4Kv. A wonderful thing for kiddies to run into. Or linesmen being surprised with when they're trying to do you a favour and reconnect you.
Or even per house, as it is out here in the sticks where we live. Some houses around here have 200' + of wire from the xfmr to the residence. They want thousands to move/install a pole, but then they'll giv out the lousy service of long feed lines to the houses, cause YOU bear that cost, so best case, you get to put it underground. Go figure.
Hey, don't forget, maroon here has been working with 'lectrisitie for ten plus years! HE knows thar ain't really no transformers in this here stuff; them's toys, not fer lectitical stuff.
Pop
And how do you suppose the power gets back out onto the grid, if not through the utility company's transformer that (under normal operation) steps the distribution voltage down to supply your house?
The truth is Stormy thinks a volt is all that matters, and poles , do not matter. And generators are all equal and all you need is a plug , to plug ' IT IN " . Hilbilly Darwinisim, in effect here. By by
Exactly so. A transformer transforms in both directions. If you supply
4KV to the primary, you get 240V at the secondary. If you supply 240V at the secondary, you get 4KV at the primary. If the lineman isn't expecting it, it could kill him.Gary R. Lloyd CMS HVACR Troubleshooting Books/Software
It is certainly possible that you can back feed a transforner on the grid and kill a lineman, not following his procedures. I doubt it is likely tho. When your tiny little generator hits that immovable object (your neighbor's loads) it will trip. The reality is, if you do kill someone, it is more likely to be your neighbor who is as electrically dumb as you are and is trying to jury rig something himself when your generator comes online. If your lineman does find power coming into the grid from your house, expect to be on generator long after your neighbors have their power back. Your service drop will be laying in the yard and your request for service will probably be "lost in the system" for a while.
Nothin' like a little good old fashioned lineman street-justice!
snipped-for-privacy@aol.com
SUBJECT: Lineman Dies When He Contacts Energized Power Line in Puerto Rico CAUSE: Electrocution
SUMMARY: On September 29, 1989, a 42-year-old male lineman with 19 years of experience was electrocuted while attaching a 2,400-volt power line to a pole-mounted insulator. The power line had been de-energized two days earlier and the supervisor assured the lineman that the power line was still de-energized.
A construction crew consisting of a supervisor, three class A linemen (including the victim), a first-class lineman, a groundman, and two truck drivers were assigned the task of correcting a malfunction in a de-energized three-phase power line. When the crew arrived at the work site, they found that one of the three phases had broken and fallen to the ground. The supervisor instructed the victim to relocate the damaged phase on the cross-arm of the pole to better balance the load on the cross-arm. As the victim began to climb the pole he was assured by the supervisor that the power lines had been de-energized. When he attempted to relocate the damaged line he contacted another phase, was shocked, and slumped backwards, prevented from falling by his safety belt. The power lines at the work site had been energized by backfeed electrical energy from a portable gas generator being used on the circuit. NIOSH investigators concluded that to prevent future similar occurrences, employers and employees must:
o ensure that established procedures for power line maintenance work are followed at all times
o take special precautions to guard against feedback electrical energy, including testing and grounding power lines prior to the initiation of work.
If you look you will find at least two moret that are much like this one.
-- Tom H
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