| Popis: |
In this paper, the neutral point grounding via low resistance short circuit fault current single-phase ground short circuit fault were calculated and analyzed. The ground current will cause large step voltage, thus threatening the safety of pedestrians. In this paper, this step voltage uneven soil model of theoretical calculations and the use of finite element software to simulate the step voltage. Studying area neutral resistance grounding influence into the soil depth, soil resistivity, capacitance and other factors on the step voltage, step voltage underground cables for single-phase ground fault simulation. And it puts forward the measure of reducing step voltage, the step voltage to minimize the harm of human body. |
