Title :
Grounding power systems above 600 V
Author_Institution :
NEI Electr. Power Eng. Inc., Arvada, CO, USA
Abstract :
The multigrounded neutral system for power systems above 600 V is a reasonable and safe design. The multigrounded neutral system provides 1) safety, 2) low zero sequence impedance than the single-point grounded neutral system, 3) lightning-arrester sizes can be optimized, 4) freezing and arctic conditions have an adverse impact on the zero sequence impedance, 5) cost of equipment for the multigrounded system is lower.
Keywords :
arresters; cost reduction; earthing; lightning protection; power system protection; cost reduction; freezing; lightning-arrester; multigrounded neutral system; power system grounding; safety; zero sequence impedance; Accidents; Automobiles; Earth; Grounding; Hazards; Hydroelectric power generation; Power generation; Power systems; Rails; Voltage;
Journal_Title :
Industry Applications Magazine, IEEE
DOI :
10.1109/MIA.2006.1578565
