【摘要】 简述了 GIS内的电磁兼容问题及隔离开关操作产生 VFTO和 TGPR的机理、一次设备干扰二次设备的几种途径。在此基础上总结了现有的各种 VFTO和 TGPR以及二次电缆内干扰电压计算方法 ,并指出其不足 ,提出了一些改进的思路更多还原

【Abstract】 In this paper, the Electromagnetic Compatibility Problem the mechanism of the Very Fast Transient Overvoltage(VFTO) and the Transient Ground Potential Rise(TGPR) produced by Disconnentor Switch Operations in Gas Insulated Substation(GIS) are discussed in brief, and the several ways of primary circuits disturbing secondary circuits are summarized. Various methods for the computing of VFTO and TGPR as well as the disturbing voltage in secondary cables are sum up, the shortage of those methods are discussed, and amelioration idea is proposed.更多还原