Taking a second look...
The CT ought never be mounted directly so close to a right-angle bend in the neutral bussing.
For the CT is going to be reading flux across ninety-degrees, too.
You'd have to have a conducting shield so as to magnetically isolate the CT.
The CT also looks like it's a total hack job. CTs are not supposed to be so over-sized.
It appears that the bizarro size was crafted so as to permit the screw-ball mounting seen in the pic.
With just the one view point, I'm restricted.
More commentary is in order from the OP.
Bus voltage, Amps, load?
Who crafted the CT?
Why?
The mount to the right -- at the neutral bus -- is way strange.
I'd shut the system down and remove this gadget immediately.
Call in a real EE to design a NEMA factory correct solution.
This type of gadget is exactly why the Code shuns non-UL mock-ups. Back in the day, everyone and his brother thought they knew what they were doing. The result was fire and death all over the nation... starting with the World's Fair in Chicago.
Last edited by Tesla; 02/07/14 10:11 PM.
