Bushing Current Transformer X, Y, Z Marking Practice 1

[Distribution73]

Hello,
When several sets of current transformer are mounted on a bushing I have seen them marked as X, Y,(Z, W ...). However it is unclear to me what is what are the relative position of these marking within the bushing. That is: I have seen manufacturer drawings (for CBs with bushing CTs) where the CT closer to the bushing terminal is assigned with the X marking, whereas another manufacturer appears to assign the "X" marking to the CTs closer to the breaker chamber.Is there any standard practice on this regard?
Thank you very much in advance for your feedback!

 

[scottf]

From what I've seen, there is no standard practice here and you'll need to refer to the unit's nameplate to see the CT relative orientation.

 

[Distribution73]

Thank you very much Scottf.