中国电力2011，Vol.44Issue(1)：19-21,3.
800 kV特高压换流变压器现场局部放电试验
Field partial-discharge test for 800 kV UHVDC converter transformer
谢超 1孙勇1
作者信息
- 1. 中国南方电网超高压输电公司广州局,广东,广州,510663
- 折叠
摘要
Abstract
The partial discharge (PD)test is one of the effective methods to detect fault in transformer.The field PD test for 800 kV U HV converter transformer conducted in Yunnan-Guangdong ± 800 kV UHVDC project is the first PD test for UHV substation converter transformer on the world's highest voltage level.The standards, procedures and process of the PD test are presented.The problems that appear in PD tests are analyzed, including under-compensated inductive current, over-heating electric cable, interference effect caused by the operation of low-voltage converter transformers and thyristor valves.The solutions are validated in the test process.The advantages and disadvantages of field PD test to ensure the installation quality and operation safety of converter transformer are also analyzed.关键词
800 kV特高压直流输电/换流变压器/局部放电试验分类
信息技术与安全科学引用本文复制引用
谢超,孙勇..800 kV特高压换流变压器现场局部放电试验[J].中国电力,2011,44(1):19-21,3.
