| 摘要 |
<p>The present invention relates to a system installed in a transformer or a switch using an LPS to monitor and display live wire states or voltages of ABC cables in real time, which is capable of: preventing, in advance, an accident that may occur in replacement or establishment of the underground transformer or the switch; and promptly determining whether there is a failure and a failure point by visually displaying a live wire. The system for monitoring live wire states and voltages of a underground transformer and switch using an LPS comprises: clamp PTs (1c, 1d, 2c, 2d) to measure voltages by magnetizing forces which are induced in a underground transformer (1) and a switch (2); and an LPS (10) to compare and analyze the voltage measured by the clamp PTs (1c, 1d, 2c, 2d) and a reference value according to a capacity of the underground transformer and the switch and to display live wire states and voltages of input cables (1a, 2a) and output cables (1b, 2b) of the underground transformer (1) and the switch (2).</p> |
