电力系统单相接地电流自动补偿装置  

A kind of auto-compensation single-phase earthing current device of electric power system

作　　者：陈晓宇[1] 郑建勇[1] 聂成新[1] 

机构地区：[1]东南大学电气工程系,江苏南京210096

出　　处：《继电器》2002年第2期54-57,共4页Relay

摘　　要：通常情况下 ,在中压配电网中 ,当电网发生单相接地故障时 ,在接地点会流过较大的全系统对地电容电流 ,并进而容易引起相间短路 ,对电网造成很大危害。研制的该装置通过一系列的测量值实时计算出故障时的电网对地电容电流 ,并通过控制装置调节消弧线圈实现跟踪补偿。经论证本装置能够在较短的时间内将接地电流减至规定的范围内 ,进而实施完全补偿。In the middling voltage electric power system,when the net meet the single_phase earthing malfunction ,there would be so much earthing current of electric power system and it would evoke the short circuit between phase and phase. This device can calculate the passing earthing current and regulate the arc_extinguishing coil to reduce the earthing current. By the demonstration the device can cut down the earthing current to the stated extent.

关 键 词：消弧线圈 单相接地 电容电流 自动补偿装置 电力系统 

分 类 号：TM761[电气工程—电力系统及自动化]