In your house you have phase and neutral, but what would happen if instead of the neutral that comes from your power station you use the neutral of another power station that
System earthings and incidents on MV side that result in LV disturbances
9-3 SANS10292 - dss-2, PDF, Electrical Wiring
Technical aspects of planning and designing LV distribution networks
Rail Earthing Equipment, 25kV
Phase-to-earth fault current flows in the MV/LV substation earthing
Medium Voltage Cable Terminations 3 – Earthing
Substation Earthing Courses
Earthing of MV and LV Distribution Systems: A multi-faceted problem. - ppt video online download
Transformer Neutral Grounding - CR4 Discussion Thread
Separate or Common Bonded Earthing for Distribution Assets
Earthing Systems