电测与仪表2016，Vol.53Issue(17)：112-116,5.
一种新型消除 PT 二次回路压降的装置与应用
A new integrated device for effectively eliminating voltage drop in PT secondary circuit
摘要
Abstract
The voltage drop in the PT secondary circuit is one of the main reasons of leakage of electricity measure-ment.A new scheme, based on voltage follower principle , is proposed to eliminate the voltage drop in PT secondary circuit accurately .The modules of voltage follower and the precision resistors are simultaneously working in the PT secondary circuit .The precision resistor modules that are matching the resistors of electric energy meter , connect in parallel to the secondary circuit near the PT .The voltage follower is series connection to the secondary circuit near the electric energy meter .The device eliminates accurately the voltage drop between PT and the meter and its effects are equivalent to the meter connecting next to the PT .The analysis of measurement data from practical applications veri-fied the performance of the proposed device and its application feasibility .关键词
PT/二次回路压降/电压跟随器/精密电阻/消除装置Key words
potential transformer/voltage drop in secondary circuit/voltage follower/precision resistors/eliminator device分类
信息技术与安全科学引用本文复制引用
李鹏程,肖永,杨沁晖,钱坤,王吉,张俊玮..一种新型消除 PT 二次回路压降的装置与应用[J].电测与仪表,2016,53(17):112-116,5.基金项目
贵州电网有限公司科技项目 （）
