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Reply To: Grounding question No.13 – Neutral to earth connection

#1554
Hamid

    1-It is clear, when a system is designed as a TNC grounding system, the separation of neutral and ground bars may increase the impedance of system ground loop; because in TNC system the neutral path is a part of grounding system. 2- Good grounding path of sufficiently low impedance ensures fast clearing of faults. A fault remaining in the system for long may cause several problems including those of power system stability. Faster clearing thus improves overall reliability. It also ensures safety. A ground fault in equipment causes the metallic enclosure potential to rise above the