浙江电力2024，Vol.43Issue(1)：91-98,8.DOI:10.19585/j.zjdl.202401011
一种新型分体式换流变压器有载分接开关
A novel split type on-load tap changer for converter transformers
摘要
Abstract
In recent years,there have been several serious incidents involving explosions and fires in on-load tap changers(OLTCs)of converter transformers during the adjustment.To address this issue,a novel design solution for a split type OLTC is proposed,separating the switching part from the transformer body to effectively prevent the faults in the tap changer being intensified.The vacuum permanent magnet switch replaces each contact of the switch,and the operating mechanism is independently configured.Based on current sampling devices arranged in the internal circuit,monitoring and control of the switching process are achieved.Split type synchronous control logic and step control logic for the diverter switch are introduced to monitor the status and provide fault protection during the tap changer adjustment process.Experimental results from the prototype validate the feasibility and effec-tiveness of the proposed OLTC design for converter transformers.关键词
换流变压器/有载分接开关/分体式/切换开关/分步控制Key words
converter transformer/OLTC/split type/diverter switch/step control引用本文复制引用
陈羽,吕玮,孙超,方太勋,卢宇,杨兵..一种新型分体式换流变压器有载分接开关[J].浙江电力,2024,43(1):91-98,8.基金项目
国网电力科学研究院有限公司科技项目(JS2100798) （JS2100798）
