Title :
DC traction power system grounding
Author_Institution :
Earth Tech, Oakland, CA, USA
Abstract :
This paper provides a review of the present practice of DC traction power system grounding methods employed in North America. An analysis of equipment grounding, system grounding, and their relationships to achieve optimized equipment and personal safety is derived. Generic protective relay schemes commonly used in the DC equipment enclosure grounding are shown. Rail leakage stray current and personnel safety affected by the DC system grounding method are discussed. To enhance personnel/equipment safety, specific recommendations for the design of the DC traction power system grounding are included
Keywords :
DC power transmission; earthing; leakage currents; power distribution protection; railways; rapid transit systems; relay protection; safety; traction; DC equipment enclosure grounding; DC traction power system grounding; North America; equipment grounding; optimized equipment safety; optimized personal safety; protective relay schemes; rail leakage stray current; rail-to-ground potential; rapid transit system; stray current; system grounding; touch potential; Grounding; North America; Personnel; Power system analysis computing; Power system protection; Power system relaying; Power systems; Protective relaying; Rails; Safety devices;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2002.1003435
