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http://dx.doi.org/10.5207/JIEIE.2010.24.2.113

A Study on the Grounding Resistance Effects of Power Transformer in Electric Distribution Systems  

Kim, Kyung-Chul (홍익대학교 전기공학과)
Jung, Ji-Won (홍익대학교 대학원 전기공학과)
Lee, Kyu-Jin (홍익대학교 대학원 전기공학과)
Lee, Kang-Soo (홍익대학교 대학원 전기공학과)
Choi, Sun-Kyu (한전 전력연구원 송배전연구소)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.24, no.2, 2010 , pp. 113-119 More about this Journal
Abstract
A safe grounding design is used for providing means to carry electric currents into the earth under fault conditions without exceeding any operating limits and for assuring that a person in the vicinity of grounded facilities is not exposed to danger of critical electrical shock. Transformer neutral point grounding is for the purpose of controlling the voltage to earth within tolerable limits under a line-to-ground fault. Transformer frame grounding is for the purpose of minimizing the hazardous potential within safety criteria appearing at the faulted equipment. ills paper deeply investigates the grounding resistance effects of distribution power transformers by analysing the neutral to eatth voltages and touch voltages when the fault occurs.
Keywords
Transformer Grounding Resistance; Neutral To Earth Voltage; Touch Voltage; Safety Criteria;
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  • Reference
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