Study on Engineering Design of 800 kV Step-up Transformer

RUAN Quan-rong; SHI Wei

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Study on Engineering Design of 800 kV Step-up Transformer

更新时间：2025-04-26

- Study on Engineering Design of 800 kV Step-up Transformer
- High VoltageApparatus Issue 3, Pages: 161-163(2006)
- 作者机构：
  
  1. 西安交通大学电气工程学院
  2. 西安交通大学电气工程学院陕西西安710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM423
- Published：2006
- 稿件说明：
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[1]阮全荣,施围.800kV升压变压器工程设计研究[J].高压电器,2006(03):161-163.

RUAN Quan-rong, SHI Wei. Study on Engineering Design of 800 kV Step-up Transformer[J]. High voltageapparatus, 2006, (3): 161-163.
[1]阮全荣,施围.800kV升压变压器工程设计研究[J].高压电器,2006(03):161-163. DOI：

RUAN Quan-rong, SHI Wei. Study on Engineering Design of 800 kV Step-up Transformer[J]. High voltageapparatus, 2006, (3): 161-163. DOI：

摘要

由发电机出线直接升压到800 kV的变压器将在西北地区首次采用。该文将结合拉西瓦工程设计的要求

对一系列的技术问题加以研究与分析。根据工程设计和研究结果

变压器将采用三相组单相变压器

铁心采用三柱式

电压调压范围为800/!3-3×2.5%kV。由于GIS的断路器和隔离开关均设置分合闸电阻

使GIS产生的快速暂态过电压（VFTO）对变压器绝缘影响较小

以及我国800 kV系统过电压的限制水平

确定它的绝缘耐受能力。

Abstract

Associated with Laxiwa hydropower station

the 800 kV step-up transformer

which directly connects with generator

shall be adopted first in northwest.Some technical considerations are given to solve the problems appeared in design.Besides

according to technical design and preliminary research results

the three single-phase transformers

with a three-column core and a voltage-regulation scope of 800/-3×2.5% kV

are chosen.As the pre-inserting resistance is used in CB and DS

the very fast transient overvoltage produced in GIS will make little influence to the transformer insulation.With the overvoltage level of 800 kV rated voltages in China

preferred rated insulation levels are given.

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