山西电子技术
山西電子技術
산서전자기술
SHANXI ELECTRONIC TECHNOLOGY
2011年
5期
7-8
,共2页
大型变压器%直流电阻%快速测量
大型變壓器%直流電阻%快速測量
대형변압기%직류전조%쾌속측량
large-capacity transformer%DC resistance%fast measurement
为了对大容量变压器的直流电阻进行快速测量,提高主要供电设备检修的工作效率,需要缩短测量中的充电过程。若要缩短充电过程,只有减小充电时间常数τ。从实用的角度,增加r比较容易实现。增设的附加电阻可按一定方法估算。经过实测证明,快速测量电路制作简单易行,操作简单,能有效解决生产实践中的快速测量问题,具有较高的推广应用价值。
為瞭對大容量變壓器的直流電阻進行快速測量,提高主要供電設備檢脩的工作效率,需要縮短測量中的充電過程。若要縮短充電過程,隻有減小充電時間常數τ。從實用的角度,增加r比較容易實現。增設的附加電阻可按一定方法估算。經過實測證明,快速測量電路製作簡單易行,操作簡單,能有效解決生產實踐中的快速測量問題,具有較高的推廣應用價值。
위료대대용량변압기적직류전조진행쾌속측량,제고주요공전설비검수적공작효솔,수요축단측량중적충전과정。약요축단충전과정,지유감소충전시간상수τ。종실용적각도,증가r비교용역실현。증설적부가전조가안일정방법고산。경과실측증명,쾌속측량전로제작간단역행,조작간단,능유효해결생산실천중적쾌속측량문제,구유교고적추엄응용개치。
In order to measure the DC resistance of large-capacity transformer rapidly and improve the efficiency of maintenance for major power supply equipment,it is necessary to reduce the charging process of measurement.The only way to shorten the charging process is to reduce the time constant which is τ.The r is easier to increase from a practical point of view.The new additional resistance can be estimated by a certain method.Then,the experimental results show that the fast measurement circuit is simple and easy to make operation which can effectively solve the problem of fast measurement during the production practice,therefore,it is well worthy for extension and application.
