仪表技术与传感器
儀錶技術與傳感器
의표기술여전감기
INSTRUMENT TECHNIQUE AND SENSOR
2015年
7期
52-53,60
,共3页
电流互感器%单铁心结构%传变特性%比差%角差
電流互感器%單鐵心結構%傳變特性%比差%角差
전류호감기%단철심결구%전변특성%비차%각차
current transformer%single iron core structure%transfer characteristics%ratio error%angle error
研发高精度微型电流互感器(TA)是目前电力仪器仪表行业共同关注的课题。选用高磁导率低矫顽力的超微晶材料做铁心，采用单匝穿心式单铁心结构设计微型电流互感器，测试数据表明，测量精度达到0.1级。可见选择好的铁心材料，优化结构，减小励磁电流，减少测量误差，在结构简单、成本不高的条件下设计出满足计量精度的微型电流互感器。
研髮高精度微型電流互感器(TA)是目前電力儀器儀錶行業共同關註的課題。選用高磁導率低矯頑力的超微晶材料做鐵心，採用單匝穿心式單鐵心結構設計微型電流互感器，測試數據錶明，測量精度達到0.1級。可見選擇好的鐵心材料，優化結構，減小勵磁電流，減少測量誤差，在結構簡單、成本不高的條件下設計齣滿足計量精度的微型電流互感器。
연발고정도미형전류호감기(TA)시목전전력의기의표행업공동관주적과제。선용고자도솔저교완력적초미정재료주철심，채용단잡천심식단철심결구설계미형전류호감기，측시수거표명，측량정도체도0.1급。가견선택호적철심재료，우화결구，감소려자전류，감소측량오차，재결구간단、성본불고적조건하설계출만족계량정도적미형전류호감기。
Research and development of high precision micro current transformer (TA) is the issue of mutual interest in elec-trical instrument and meter industry at present.This project chose high permeability and low coercivity material of superfine crystal as core,adopted the single-turn single core structure to design the micro current transformer.The test data show that the precision of the measuring is 0.1 level,thus showing that choosing good core material can optimize the structure,reduce the excitation current and reduce the measuring error.Under the condition of simple structure and low cost,micro current transformer that reaches the measuring accuracy was designed.
