CT termintion

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vinod

Senior Member
Location
Saudi Arabia
Team,
Can anybody provide some information/Standard about CT termination? I found motor differential CT wires are connected in to regular type of terminals. ie. Normal terminals for panel control wirings with pin type lug. Is that correct? My suggestion is they should use RING type lugs and the terminals equipped with shorting links. Am I correct?
Please advise...
 
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djohns6

Senior Member
Location
Louisiana
I'm not sure what you mean about " pin type lug " , but we always use ring terminals , and there is always a terminal block with a shorting bar for the secondary .
 

jim dungar

Moderator
Staff member
Location
Wisconsin
Occupation
PE (Retired) - Power Systems
vinod said:
Team,
Can anybody provide some information/Standard about CT termination? I found motor differential CT wires are connected in to regular type of terminals. ie. Normal terminals for panel control wirings with pin type lug. Is that correct? My suggestion is they should use RING type lugs and the terminals equipped with shorting links. Am I correct?
Please advise...

This is strictly a design choice, there are no universally applicable standards.

My vote is for ring lugs and shorting blocks.
 

vinod

Senior Member
Location
Saudi Arabia
djohns6 said:
I'm not sure what you mean about " pin type lug " , but we always use ring terminals , and there is always a terminal block with a shorting bar for the secondary .
Attached the sample of "pin type" lug
 

iwire

Moderator
Staff member
Location
Massachusetts
vinod said:
Attached the sample of "pin type" lug

I never understood the point of these being used with good quality terminal blocks. In my opinion the only thing you gain are potential failure points. The only reason to use them seems to be 'cause it looks nice'.
 
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