connect CT to KWH meter
connect CT to KWH meter
(OP)
Hey guys,
I have an existing mini-sub with a Kwh meter that was never wired on its secondary (480V).
But now we have to wire it. Does anybbody know what kind of CT do I need for it?
The mini sub is rated 2240Kva, fla 2695A 13800/480V.
I will really appreciate it.
I have an existing mini-sub with a Kwh meter that was never wired on its secondary (480V).
But now we have to wire it. Does anybbody know what kind of CT do I need for it?
The mini sub is rated 2240Kva, fla 2695A 13800/480V.
I will really appreciate it.





RE: connect CT to KWH meter
RE: connect CT to KWH meter
what other details do you need?
RE: connect CT to KWH meter
What do you intend to meter?
Types of loads to be metered?
How accurate does it need to be?
Where in the world you're located?
Where/how the CTs are to be installed?
What kind of meter is it?
Probably several other things too.
RE: connect CT to KWH meter
Bill
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"Why not the best?"
Jimmy Carter
RE: connect CT to KWH meter
This mini-sub is feeding a small building.
If it can be accurate up to 1%, this will be great.
I'm located in arizona, I work for a plant.
I have never used CT so I don't know how they are to be installed.
I can send you the pic of the mini sub if that may help
RE: connect CT to KWH meter
RE: connect CT to KWH meter
"A Big Orange Basket-ball."
Death or blindness (temporary or permanent) may result from inexperience with CTs.
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: connect CT to KWH meter
RE: connect CT to KWH meter
I will let you know how they will do it.
RE: connect CT to KWH meter
quick one: How do you pick the ratio of a CT?
I am working on a 480V system with 2695A.
RE: connect CT to KWH meter
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: connect CT to KWH meter
No offense but judging from your questions, you should have a good engineer or contractor check the sub to see if there are any existing CTs and they were just not connected! If they do not exist, it will be bear to install CTs on existing bus or cables of a switchgear this size. You can also check its shop drawing, if you could find one. Most manufacturers will have a record.
Rafiq Bulsara
http://www.srengineersct.com
RE: connect CT to KWH meter
"Death or blindness (temporary or permanent) may result from inexperience with CTs."
Temporary death?
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If we learn from our mistakes I'm getting a great education!
RE: connect CT to KWH meter
Bill
--------------------
"Why not the best?"
Jimmy Carter