直接接地系统铁磁谐振过电压计算分析  

Calculation and Analysis of Ferroresonant Overvoltage Occurred in Neutral Effective Grounded Power System

作　　者：常卫中[1] 刘玄毅[1] 

机构地区：[1]东北电力学院电力工程系

出　　处：《东北电力学院学报》1996年第1期27-32,共6页Journal of Northeast China Institute of Electric Power Engineering

摘　　要：用非线性振动理论中的方法，研究了中性点直接接地系统由断路器均压电容引起的电磁式电压互感器铁磁谐振过电压的机理，导出了稳态时各参变量之间的关系方程，解释了该种过电压的线序和零序性质，为选择消谐措施提供了依据。The Paper studies the mechanism of ferroresonant overvoltage caused by grading capacitance of the circuit breaker and the electromagnetic type potentical transformer in neutral effective grounded power system. The relationship equations among parameters are derived based on theory of nonlinear oscillation and the caracteristic of the ferroresonant overvoltage and its sequential componants are explaind to submit a theoreical basis on selection of resonance suppression measures.

关 键 词：铁磁谐振 过电压 接地系统 计算 变电所 

分 类 号：TM63[电气工程—电力系统及自动化] TM864