VFTO Computation of 1 100 kV HGIS in Nanyang Substation

WEI Chang-yu 1; SUN Yong-heng 2; ZHANG Duo 2; CAO Xiang-lin 3; LIU De-hui 2; LIU Ji-cheng 2; WEI Jun-mei 2

doi:10.13296/j.1001-1609.hva.2013.07.010

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VFTO Computation of 1 100 kV HGIS in Nanyang Substation

更新时间：2025-04-26

- VFTO Computation of 1 100 kV HGIS in Nanyang Substation
- High VoltageApparatus Vol. 49, Issue 7, Pages: 35-39(2013)
- 作者机构：
  
  1. 机械工业高压电器设备质量检测中心
  2. 2. 新东北电气集团高压开关有限公司
  3. 广东省电力设计研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2013.07.010
  CLC： TM564.1
- Published：2013
- 稿件说明：
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[1]魏长宇,孙永恒,张铎,曹祥麟,刘德辉,刘吉成,魏俊梅.南阳站1100kV HGIS VFTO仿真[J].高压电器,2013,49(07):35-39.

WEI Chang-yu 1, SUN Yong-heng 2, ZHANG Duo 2, et al. VFTO Computation of 1 100 kV HGIS in Nanyang Substation[J]. High voltageapparatus, 2013, 49(7): 35-39.
[1]魏长宇,孙永恒,张铎,曹祥麟,刘德辉,刘吉成,魏俊梅.南阳站1100kV HGIS VFTO仿真[J].高压电器,2013,49(07):35-39. DOI： 10.13296/j.1001-1609.hva.2013.07.010.

WEI Chang-yu 1, SUN Yong-heng 2, ZHANG Duo 2, et al. VFTO Computation of 1 100 kV HGIS in Nanyang Substation[J]. High voltageapparatus, 2013, 49(7): 35-39. DOI： 10.13296/j.1001-1609.hva.2013.07.010.

摘要

对隔离开关操作引起的VFTO进行仿真是实现合理的绝缘配合及建设坚强特高压电网的重要课题。针对1 000 kV南阳开关站的HGIS布置

对隔离开关操作引起的VFTO进行了计算分析

计算结果表明

隔离开关中电阻对VFTO具有显著的抑制作用。南阳开关站隔离开关带有500Ω抑制电阻

在最苛刻条件下关合GIS中的VFTO幅值最大为1 266.6 kV

远低于其额定雷电冲击耐受水平2 400 kV;关合一次抑制电阻吸收的能量远低于其额定热容量

因此南阳开关站的隔离开关可以可靠操作。

Abstract

VFTO computation is one of the main themes in order to realize reasonable insulation coordination and to construct strong ultra-high voltage electric grids.For 1 100 kV HGIS layout in Nanyang substation

the VFTOs caused by disconnector switching were computed

and the results show that the suppressed resistor is powerful to control VFTOs.The disconnector in Nanyang substation is equipped with 500 Ω resistor

under the severest closing condition

the peak of VFTO in GIS is 1 266.6 kV

which is much lower than its rated LIWV level 2 400 kV;the energy absorbed by suppressed resistor during a closing process is much lower than its rated thermal capacity

so the disconnector in Nanyang substation can be switched reliably.

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