Metering Parallel Conductors

[Tightpants]

I have a 3P3W, 1200A, 480V system that I would like to meter with Omnimeter HV v.5 and Push3. The main feed has (4) conductors per phase = 300A per conductor. I would like to install a 400A CTs on 1 conductor of L1 & L3. Since I’m only metering ¼ of the total current I’m thinking the meter would need to be setup with a CT ratio 1600A : 26.6mA to get correct valves. Is this possible? Alternatively, can the CT ratio be 400 : 26.6 and a 4x multiplier be applied?

[Jameson]

Here is an article that explains how you can pass multiple wires through the same Current Transformer:
https://help.ekmmetering.com/support/so ... ansformer-

Here is an article that explains how you can have multiple Current Transformers on the same phase:
https://help.ekmmetering.com/support/so ... ame-phase-

So you will either have to use 1 x 1500 amp CT around all 4 cables, or use multiple 1500 amp CTs per phase.

You cannot use multiple 400 amp CTs to measure a 1200 amp load, the cumulative outputs of all 400 amp CTs would exceed the 26.6mA rating of the input of the meter.