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#27627 - 07/24/03 06:12 PM meter rotation
LoneStar Offline
Member

Registered: 06/03/03
Posts: 14
Loc: Victoria, TX 77901
Just curious. I understand basically a meter (watt-hour) being a CT and all. But what would make a meter turn the "OTHER WAY"? I turn off all breakers to a residence and watched for a draw, there was a small load even with all breakers off. then meter turned in opposite direction!!!
we have a lot of wierd things round here since Hurricane Claudette gave us a direct hit a week ago. Im about to go troubleshoot in the AM , and just wanted a little feedback here first. I have seen a lost neutral cause over-voltage situations, one busbar gets 170 volts when one light bulb is turned on in house.I was kind of leaning toward a bad service neutral on this one too.
customer complains of the main breaker tripping. ugh , ye old FPE panels

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#27628 - 07/24/03 06:19 PM Re: meter rotation
circuit man Offline
Member

Registered: 11/05/01
Posts: 287
Loc: saluda,s.c.
well what you seem to have is what is called "meter creep"this can be forward or backwards.usually the 2 little holes in the disk stop this, but not always.a lot of the really old meters did this. but most new will not due to design. what type meter is it? it could be because the meter was hit by a large surge, weaking the braking magnets.but not usually. ok guys feel free to give it a shot.

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#27629 - 07/24/03 08:04 PM Re: meter rotation
Bjarney Offline
Moderator

Registered: 04/10/02
Posts: 2561
Loc: West-Southern Inner-Northeast ...
c-man, you covered it well.

LoneStar, just tell your customer that they’ve been getting a “huge” discount on their electric bill—probably 3¢ a month.

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#27630 - 07/24/03 11:52 PM Re: meter rotation
Trumpy Offline

Member

Registered: 07/05/02
Posts: 8540
Loc: SI,New Zealand
Guys,
Here is something that is related to this topic, that I have found strange to say the least, for a large number of years and I was wondering if anyone can explain it, as I have no idea how this happened.
Right, my late Grand-father, was a Black-Smith/Engineer, when he used his Electric Arc Welder (a Young single-phase)in his workshop, which was fed by a Submain from the house, the Meter used to turn in the reverse direction, to what it should normally.
I saw this happen, as a kid(my Father showed me as G/Dad was hard-facing a plough blade) and I have never been able to explain why, since.
But, the Meter wasn't creeping, it was spinning like a Helicopter rotor!.
Can anyone give a reason why this might have happened?.
Lonestar, sorry about the threadjack.
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin

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#27631 - 07/25/03 03:37 AM Re: meter rotation
rowdyrudy Offline
Member

Registered: 11/02/02
Posts: 171
Loc: Mascoutah, IL USA
Strapping a meter will cause reverse action.
Rowdy

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#27632 - 07/25/03 08:31 AM Re: meter rotation
LoneStar Offline
Member

Registered: 06/03/03
Posts: 14
Loc: Victoria, TX 77901
I've been Hijacked!!

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#27633 - 07/26/03 06:35 PM Re: meter rotation
circuit man Offline
Member

Registered: 11/05/01
Posts: 287
Loc: saluda,s.c.
rowdy, could you give a little more detail on "STRAPPING" a meter? trumpy was this the meter on the house are a sub meter for the shop?seems odd it would move backwards that fast.this is one for the experts. guys fire away!

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#27634 - 07/26/03 10:19 PM Re: meter rotation
Trumpy Offline

Member

Registered: 07/05/02
Posts: 8540
Loc: SI,New Zealand
circuit man,
The House and Workshop were on the same meter.
This was a fair while ago, though, these days a W/shop with any large current draw over here, would have it's own metering and possibly it's own supply.
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin

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#27635 - 07/26/03 10:48 PM Re: meter rotation
LoneStar Offline
Member

Registered: 06/03/03
Posts: 14
Loc: Victoria, TX 77901
turns out, a "mold-remediation" company gutted this house. they cut any wires in their way. Very sloppy. Lawsuit pending. Theres alot of "back-feeding" going on. Alot of "flying -joints" wrapped with japwrap. God only knows what I will find in when I get into the attic LOL all this was just from opening the service equipment, and from stepping in the front door. Wires hanging everywhere.
POCO checked the xmfr, said all was well there.
Im not sure what you mean by "strapping" either.......

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#27636 - 07/27/03 03:19 AM Re: meter rotation
rowdyrudy Offline
Member

Registered: 11/02/02
Posts: 171
Loc: Mascoutah, IL USA
Circuit Man: Strapping is the process of placing a jumper across the meter stabs and re-inserting the meter in the base. If both sides of the meter (residential)are jumped the meter will run in reverse with speed increasing with load. The method that is still in use by many people is to jump only one side and that reduces the rotation, and the indicated consumption, by half.
By the way, it's illegal as it is theft.
Rowdy

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