Electric measurement device in panel

[kasterko]

I came across this on new construction. It allows the owners to measure their electrical usage. I'm speaking of the 2 white metering devices on the service entrance cables and the leads exiting the panel at the bottom. I saw something similar to this befoe in a condo where they were trying to meter by individual units and I thought I was told it was wrong. I've searched the forum for "low voltage in panel" and found references to 110 and 725 and I'm still confused. I guess we'll be seeing more of this in our quest for energy efficiency

I sent this before finishing and I wanted to know if the set-up is OK i.e. can these low voltage devices be in the panel? I did not read the panel information.

Download Attachment: P9230129.JPG

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[Jim Katen]

I came across this on new construction. It allows the owners to measure their electrical usage. I'm speaking of the 2 white metering devices on the service entrance cables and the leads exiting the panel at the bottom. I saw something similar to this befoe in a condo where they were trying to meter by individual units and I thought I was told it was wrong. I've searched the forum for "low voltage in panel" and found references to 110 and 725 and I'm still confused. I guess we'll be seeing more of this in our quest for energy efficiency

I sent this before finishing and I wanted to know if the set-up is OK i.e. can these low voltage devices be in the panel? I did not read the panel information.

It's probably no big deal. I just hate to see that unnecessary stuff in a panel. When UL lists these panels, they don't take stuff like that into account.

I've started seeing a new kind of power monitor. It's like a little Borg machine strapped to the meter. It uses a little "eye" to read the meter.

- Jim Katen, Oregon

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[Brandon Whitmore]

I've started seeing a new kind of power monitor. It's like a little Borg machine strapped to the meter. It uses a little "eye" to read the meter.

I've got one hooked up, and it works great.

[Tom Raymond]

I've started seeing a new kind of power monitor. It's like a little Borg machine strapped to the meter. It uses a little "eye" to read the meter.

I've got one hooked up, and it works great.

We have one connected at the day job. It is sensative to RF interference, but tons easier to install.

Tom

[Jim Katen]

I've started seeing a new kind of power monitor. It's like a little Borg machine strapped to the meter. It uses a little "eye" to read the meter.

I've got one hooked up, and it works great.

Yeah, until you've been assimilated.

- Jim Katen, Oregon

[Mr. Electric]

They are called CT's or current transformers. All they do is measure the strength of the electrical field around the wire they are attached to (so something like a meter can read the power use). I would not be to concerned about them unless the system is not listed by a proper testing agency like UL or CSA etc.