| 500kV断路器取消合闸电阻问题的研究 |
| |
| 引用本文： | 周志芳.500kV断路器取消合闸电阻问题的研究[J].电网技术,1997,21(12):8-11. |
| |
| 作者姓名： | 周志芳 |
| |
| 作者单位： | 浙江省电力试验研究所!杭州310014 |
| |
| 摘 要： | 本文对浙江北－兰５４０３线在北仑港侧不装合闸电阻情况下合闸线路时的过电压进行了研究，分析了实测结果及运行情况，还计算了讨论了目前５００ｋＶ线路绝缘水平下其操作过电压可允许高于２．０ｐｕ。并指出输电线路在一定长度范围内，可以取消合闸电阻，而仅用ＭＯＡ来限制操作过电压。
|
| 关 键 词： | 合闸电阻 断路器 合闸过电压 氧化锌 避雷器 |
RESEARCH ON ELIMINATING CLOSING RESIST0R FOR 500kV CIRCUIT BREAKERS |
| |
| Zhou Zhifang.RESEARCH ON ELIMINATING CLOSING RESIST0R FOR 500kV CIRCUIT BREAKERS[J].Power System Technology,1997,21(12):8-11. |
| |
| Authors: | Zhou Zhifang |
| |
| Abstract: | The switching surge overvoltage caused byswitching-on(reclosing) a 5OOkV transmission line is analyzedwhen the closing resistor for circuit breaker at 0ne end of thistransmission line is eliminated. On the basis of calculation it isput forward that under the present insulation condition for5OOkV transmission line the swltching-surge overvoltagehigher than 2. O p. u. is permissible. In a certain range oflength of transmission line the c1osing resistor can be eliminat-ed and the switching-surge overvoltage can be reduced byMOA on1y. |
| |
| Keywords: | Switching-surge overvoltage Closing resistor MOA |
| 本文献已被 CNKI 维普 等数据库收录！ |
