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What is I5 on the ION7x50?

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Philippe_Morel
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What is I5 on the ION7x50?

A customer wants to measure the fault current because he has shutdowns on the differential.


Could this be done with the ION7x50?

Are these the connections I51 and I52? In the User Guide they have to be short circuited and connected to the ground. Why two clamps instead of one since they must always be short circuited?

So no current transformer is needed?

Is there somewhere more information about the I5 current? I don't find much about it in the User Guide.


Accepted Solutions
DanL
Commander Commander
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155

Re: What is I5 on the ION7x50?

The I5 input (terminals I51 and I52) is functionally equivalent to the I4 input - an external CT is required to use it.

Unfortunately the user guide only shows how to wire I5 when it is not in use.

See Answer In Context

2 Replies 2
DanL
Commander Commander
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156

Re: What is I5 on the ION7x50?

The I5 input (terminals I51 and I52) is functionally equivalent to the I4 input - an external CT is required to use it.

Unfortunately the user guide only shows how to wire I5 when it is not in use.

Philippe_Morel
Commander Commander
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155

Re: What is I5 on the ION7x50?

Hi Dan,

Thank you for the answer.

I also asked this question to our support in Prague.

They told me to use the wiring in the screenshot below:

3503

This comes from Resolution Number 187972.