三相YN，d11接线牵引变压器低压侧无功电能计量问题研究

DISCUSSION ON THREE-PHASE YN,d11 WIRING TRACTIVE TRANSFORMER AND MEASUREMENT OF LOW-VOLTAGEREACTIVE ENERGY

本文指出了三相ＹＮ，ｄ１１接线牵引变压器低压侧无功电能计量在多年抄表计算工作中一个重要而有争议的值得研究的问题，推导和论证了这种无功电能计量的接线方式、工作原理和计算公式的正确性，以及抄表计算的正确方法，提出了相应的合理化建议，阐述了研究、解决的必要性。

In this paper,the three-phase YN,d11 wiring tractive transformer and the measurement of low-voltage reactive energy have been discussed ,which during recent years hasbeen an important disputed problem worth studying in the work of metre-reading and calculation. The correctness of the wiring diagram of this reactive electric energy measurement,working principles and calculating formulae as well as the correct method of metre-readingand calculation have been deduced and proved.Therefore,a correspondingly reasonable suggestion has been put forward.This paper deals with the necessity for research and solution.