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3 phase star + current transformer

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Maverickmax

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Hi

I know it is going sound stupid but it is worth to ask you guys regarding current transfomer.

Each phase will be connected to current transformer (80:1) and the max current should not exceed 250A. So if one of the phase is not connected to load, the current would be zero. If the load exist in one of the phase, I would probably measure the current coming out of CT.

Does the voltage drop if the current is high?

Please clarify few things for me?

Maverick Max
 

madeza

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Firstable, you ever can't connect a CT with out burden, I mean a CT secundary connection is like a short circuit.
And you should clarify How is your source: is three phase voltage connected in star or your load is connected in star or the load is single phase (line-neutral)??
 

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