| 10kV高压开关柜烧毁事故分析 |
| |
| 引用本文： | 王帅.10kV高压开关柜烧毁事故分析[J].贵州电力技术,2011(10):29-31. |
| |
| 作者姓名： | 王帅 |
| |
| 作者单位： | 铜仁供电局,贵州铜仁554300 |
| |
| 摘 要： | 由于10kV高压开关柜长期温升超标而加速了柜内设备绝缘的老化，导致柜内10kV真空断路器绝缘拉杆性能下降而发生单相弧光接地，而柜内10kV三相限压保护器又由于选型不当而在暂时过电压作用下发生爆炸，引起相间短路，进而扩大了事故范围。
|
| 关 键 词： | 开关柜温升 绝缘拉杆 三相限压器 |
Analysis of 10kV high -voltage switchgear burnout accident |
| |
| Wang Shuai.Analysis of 10kV high -voltage switchgear burnout accident[J].Guizhou Electric Power Technology,2011(10):29-31. |
| |
| Authors: | Wang Shuai |
| |
| Affiliation: | Wang Shuai ( Tongren Power Supply Bureau, Tongren 554300 Guizhou, China) |
| |
| Abstract: | Due to the long- term temperature rise in 10kV high -voltage switchgear, it accelerates the aging of devices insulation in switchgear and causes 10kV vacuum circuit breaker insulation pull rod properties degradation. Then the single - phase arc grounding fault occurs. Due to improper selection, under the action of transient overvoltage, the three phase voltage limiter explodes, which causes interphase short circuit, and then extends range. |
| |
| Keywords: | switchgear temperature rise insulation pull rod three phase voltage limiter |
| 本文献已被 维普 等数据库收录！ |
