Hello,
I'm working on a project regarding relay settings for an industrial plant, <10 MW. They are able to supply the plant fully through their syn. generator or through their connection to the grid, or a combination of both. It's been decided that they want ROCOF protection on their incomer...
I'm trying to calculate the zero sequence impedance of a cable for the calculation of single phase to ground fault and could use some clarification.
The cable in question is 3x300/25mm² NA2XS2Y 6/10(12)kV, which there will be installed two of in parallel along with a 35mm² PE conductor.
Is...