접지망 시뮬레이션을 통한 직류 전기철도에서의 위험전위 분석

초록

DC Electric Railroad, the Isolation Grounding and the Common Grounding are grounding methods. In country Isolation Grounding use generally, but recent communication field and partial electric field apply Common Grounding. Because use Isolation Grounding mixed with Common Grounding. Dangerous voltage in the grounding system is the ground-net safety and unsafety to divide standards that very important element. MALT of CDEGS program utility analyze simulation model-1, 2, 3 in current distribution, touch voltage, and step voltage. Simulation model-1. make use of not only Common Grounding in electric power system but also Isolation Grounding in communication equipment and etc. And simulation model-2. use Common Grounding in all equipment. Simulation model-3. use Common Grounding that gathered station three-spot. As simulation conclusion is verified stable model in simulation 2. rather than simulation 1. and simulation 3. rather than simulation 2. Common Grounding apply all station and electric power system given by the IEEE. Consequently safety support of the human body as well as electric equipment.