KWH meter question - Electrician Talk - Professional Electrical Contractors Forum

dcc · 03-19-2007, 03:16 AM

Hi all, I'm the new kid on the block.

I have a client that wants to connect a KWH meter to monitor a 110V single phase circuit. I have never wired a 220V meter with only one 110V line, do I just connect the single line to the line and loads sides and leave the other?

frenchelectrican · 03-19-2007, 03:27 AM

DCC;

"I have a client that wants to connect a KWH meter to monitor a 110V single phase circuit. I have never wired a 220V meter with only one 110V line, do I just connect the single line to the line and loads sides and leave the other?"

Is any partairly reason why want to read the 110 load and what this loaction is used for ??

the reason why i kinda hesited to answer this question until i can see more clearer picture on this sistuation and this line is actally from the POCO to the metering device ?? or just used for submetering or what ??

those question will help more clear on this

[ yeah i do know the connection but i don't know where ya from so i can't say too much because some POCO have very strict regulation there and old 120 connection are just about history btw majorty are wired for 240 set up ]

Merci , Marc

dcc · 03-19-2007, 03:43 AM

Hi Frenchelectrician and thanks for the response.

This is the USA. My client/friend has a camp ground with 110V 30A panels in each camp spot. He would like to monitor the use on long term campers for billing purposes. Each panel has the hub hole on top to add the meter base, so it's a pretty straight transfer from the breaker to the line side of the meter and out the load side to the GFIs. I've just never tried wiring one of these with the one potential.

brian john · 03-19-2007, 07:24 AM

You can buy a specific meter for this purpose. That is going to be the best solution. I assume this is a tenant load of some kind. Depending on the load and number of branch circuits the cost of metering can exceed the benefits.

dcc · 03-19-2007, 12:50 PM

Hi guys, I called the manufacturer and found out that it is a series connection as I suspected. The 110V line is attached to the line1 lug, a jumper is then run between load 1 and load 2, the outgoing load is connected to line 2 lug.

line in -l ine1 line 2 - load out

load 1 -jumper- load 2

MDShunk · 03-19-2007, 01:01 PM

Quote:

Originally Posted by dcc

Hi guys, I called the manufacturer and found out that it is a series connection as I suspected.

I guess I checked in too late. Glad you got your answer, though

I've got a meter repair manual that has lots of different ways to connect various kilowatt hour meters for various purposes. Also gives you a little bit on insight into ways to get ....

Oh, nevermind.

dcc · 03-19-2007, 02:22 PM

Hi MDShunk, I appreciate the response anyway. This looks like a nice place to bring my questions and perhaps share a little of what I can add. I'm looking forward to getting to know you guys.

Thanks, Dan

btw...I've always wanted to test the theory regarding a powerful magnet placed...well, you get the idea.lol

JohnJ0906 · 03-19-2007, 05:40 PM

Shhhhhhhhhh! Don't let THEM hear you!

brian john · 03-19-2007, 05:49 PM

Quote:

regarding a powerful magnet placed...well, you get the idea

If you have an older monitor place it next to the monitor then move it in and out.

dcc · 03-19-2007, 10:48 PM

Yeah, it seriously plays with the degaussing. If there are any audio fans that can remember the late seventies there was a high frequency driver call a Air Motion Transformer that had four powerful magnets in it. While rearranging my three way speaker system I placed one on my tv, I had my own aurora borealis for about a week.