What does CT mean?

rsdoran

Lifetime Supporting Member
rsdoran
Join Date
Apr 2002
Location
Birmingham, AL
Posts
7,371
If you saw CT used as an electrical term what would it mean to you?

I will explain why I asked after I see what is stated. This is not a student type questior or a joke.
 
I normally think of "current transformer" when I hear CT.

However, being in the control panel business for a long time, I have also heard others refer to "control transformer" as a CT.
 
Normally I would think of a current transformer as well. However, if the drawing is using the ISA tag format then 'C' is designated as a user defined tag letter with 'T' being the designation for Transmitter.

In the ISA format a current transformer would be designated IT.

(ISA standard instrument designation chart attached)
 
Alaric,


You are very correct. ISA has a way of messing up a good thing. :D

ISA changes their own standards often enough. I try to stick to ISA standards for my student's sake, but care must be taken to get the same ISA standard version.

At least once a semester I present them with a different standard, just to watch the reaction.
 
Ct

OK CT in electrical context; Current Transformer, Center Tap, Computed Tomography. Carbon/Tungston filiment is another. Common Terminal is labeled on some PCBs as CT.
 

Similar Topics

Mas01
Siemens S7/TIA v18: What does "Object Number" mean?...
The picture attached relates to the properties for the F9 key. Does anyone know what 'object number' refers to? What does 'object number' mean...
Replies
4
Views
719
Mas01
Mas01
O
FX3U-32MR/ES-A ...... What does the A mean?
I have used plenty of Fx 3U's but this is the first I have ever seen the ES-A. I can't find any refrence to it in any Mitsubishi literature. Looks...
Replies
6
Views
2,302
oncewaslost
O
Mas01
GX developer: What does UNPAIRED mean?...
When I do a search of used devices (typically, to find a spare one I can use), this table appears, but I don't understand what "unpaired" means or...
Replies
7
Views
1,382
parky
P
J
What does the (1) on the ladder mean
Replies
4
Views
2,489
John Morris
J
Mas01
GX developer: What does this message mean?
When I press F4 to convert the code, I get this message. What does it mean? Thanks
Replies
11
Views
2,545
Mas01
Mas01
Back
Top Bottom