| 摘要 |
PROBLEM TO BE SOLVED: To provide a ground system inflow current calculation device capable of more precisely calculating a ground system inflow current which is a foundation of ground resistance design.SOLUTION: The ground system inflow current calculation device is configured to store, in a storage device 20, an electromagnetic transient phenomenon analysis program 25 capable of calculating ground fault currents of an analysis model 22 simulating a power system and a transmission line model of the analysis model 22 and an electromagnetic induction current of the transmission line model and so that ground fault current calculation means 19 determines a ground current of an object to be analyzed using the electromagnetic transient phenomenon analysis program 25 and the analysis model 22, electromagnetic induction current calculation means 23 determines an electromagnetic induction current of the object to be analyzed using the electromagnetic transient phenomenon analysis program 25 and the analysis model 22 and so that ground system inflow current calculation means 24 subtracts the electromagnetic induction current determined by the electromagnetic induction current calculation means 23 from the ground fault current determined by the ground fault current calculation means 19 to determine a ground system inflow current.SELECTED DRAWING: Figure 1 |
