What is this?

Originally Posted By: gwiggins
This post was automatically imported from our archived forum.



http://www.nachi.org/bbsystem/usrimages/1/100_9147.JPG ]


[ Image: http://www.nachi.org/bbsystem/usrimages/1/100_9148.JPG ]


[ Image: http://www.nachi.org/bbsystem/usrimages/1/100_9149.JPG ]


Originally Posted By: Greg Fretwell
This post was automatically imported from our archived forum.



It looks like a current transformer.


Are there conductors going through the center?


If so the installation make no sense to me. Maybe Bob has some insight.


Originally Posted By: rmoore
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Whatever it is icon_eek.gif , I think it’s a safe call to say it shouldn’t be inside the service panel.


I know very little about 3-phase equipment, but is there any chance this could be providing the "third leg" to something in a workshop? Or perhaps the world's largest doorbell?


--
Richard Moore
Rest Assured Inspection Services
Seattle, WA
www.rainspect.com

Originally Posted By: gwiggins
This post was automatically imported from our archived forum.



There is no shop or any outlets for heavy equipment. There has been a four seasons room added on the back of the home and it has a heater/ air conditioner like you see in a motel room.


Originally Posted By: Greg Fretwell
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I am pretty sure that is a current transformer. They are used for indirect metering where you have the CT around the service conductor and the meter sees a smaller percentage of the current. This is a picture of one from the Mar/Apr IAEI magazine





Sure looks like a JAK-0 200:5 to me
http://www.geindustrial.com/products/brochures/GEA-8668A.pdf

What the hell it is doing there, connected like that, is anyone's guess.
Maybe someone's idea of surge protection? It really just looks like a heater.


Originally Posted By: rmoore
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Thanks Greg…Never heard of or seen such a beast. My next completely WAG was going to be a siren for an alarm system. I’m glad you stopped me before I made a fool of myself. aiwebs_017.gif


As far as I can tell the conductors going through it are attached to the top right double breaker (the same one that is double-tapped). Would someone use this to meter a MIL apartment?

Gabe...was there a sub-panel somewhere?


--
Richard Moore
Rest Assured Inspection Services
Seattle, WA
www.rainspect.com

Originally Posted By: gwiggins
This post was automatically imported from our archived forum.



Yes there was a 125amp sub panel below with one 30 amp 240 volt circuit and three 20 amp 120 volt circuits.