摘要
本文在变压器空载损耗和负载损耗在线检测研究工作的基础上,进一步增加了对短路阻抗和短路电压的计算方法的研究,并提出了一种在线测量变压器短路电压的方法。此方法通过对变压器原副边电压和电流的实时值的运算来实现。采用两片6通道的AD转换芯片,实现12路信号的同步采样,并由DSP芯片计算出变压器的铁耗、铜耗和短路阻抗,再计算得出变压器的短路电压。
It shows a method to detective the short-circuit voltage of the three-phase power transformer online by operating the real-time voltage and current of both sides of the transformer. Compared to the no-load loss and the load loss in the previous article, we provide the computing method of the short-circuit voltage. The system can realize the synchronic 12-channel samples through two ADs with 6 channels. Inputting the DSP chip, we can get the iron loss, copper loss of transformer and short-circuit impedance, then caculate the short-circuit voltage.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2006年第z2期1170-1171,共2页
Chinese Journal of Scientific Instrument
关键词
短路阻抗
短路电压
short-circuit impedance short-circuit voltage
