Potential Transfomer Selection 3

[mmt019]

How do you calculate if a P.T. is suitable for a meter? I have a three phase P.T. (open delta- 4200:120V) that is 0.3WX, 0.6M, 1.2Y AND 500VA thermal rating @ 30 Degree C. The meter I am connecting it to has a 5M ohm input impedance. I want to connect 5 meters to the same P.T. Any advice guys?

 

[jbartos]

Suggestion: It may be a good idea to follow the CT and PT transformers manufacturer recommendations, since the industry standards tend to be so so at their limits. E.g. some PT manufacturers deviate from industry standards rated secondary voltage.