论文部分内容阅读
本文以单相电力变压器为基础，采用控制合闸相位角的方法，对变压器不同的励磁涌流工况，进行了分析研究，并分析比较了不同状况下的剩磁数据，由此可以选择对其有利的合闸状态。
基于相控技术的单相干式变压器励磁涌流实验研究
【摘 要】
：
本文以单相电力变压器为基础，采用控制合闸相位角的方法，对变压器不同的励磁涌流工况，进行了分析研究，并分析比较了不同状况下的剩磁数据，由此可以选择对其有利的合闸状态。
【机 构】
：
华北电力大学电气与电子工程学院,河北 保定 017003;保定天威集团有限公司,河北 保定 071056
【出 处】
：
第八届全国变压器技术学术年会
【发表日期】
：
2012年11期
其他文献
Functional materials in microorganism cell,cell membrane and cell wall could be dissolved by supercritical carbon dioxide.As a result,the microorganism cells would be damaged and may die because of in
会议
ALTERATIONS IN THE ACTIVITY AND STRUCTURE OF PECTIN METHYLESTERASE TREATED BY HIGH PRESSURE CARBON D
The influence of high pressure carbon dioxide (HPCD) on the activity and structure of pectin methylesterase (PME) from orange was investigated.The pressures were 8-30 MPa,temperature 55 ℃ and time 10
会议
Orange juice was treated by DPCD forl0,20,30,40,50 and 60 min under 40 MPa at 55 ℃.Physicochemical characteristics of DPCD treated orange juice series were determined and compared with that of the the
会议
INACTIVATION OF COMBINED TREATMENT OF HIGH-PRESSURE CARBON DIOXIDE AND HEAT ON POLYPHENOL OXIDASE IN
Inactivation of polyphenoloxidase (PPO) in cloudy apple juice induced by High-Pressure Carbon Dioxide (HPCD) combined with heat treatment was investigated in this study.Residual activity (RA) of PPO d
会议
Juice processors have traditionally used thermal pasteurization to prevent deterioration by spoilage bacteria such as Lactobacillus plantarum and Saccharomyces cerevisiae; however,thermal processing m
会议
Drying of green peas in a fluidized bed dryer (FBD) of inert particles heated by combined sources of hot air and infrared (IR) radiation,has been experimentally and theoretically studied.For this purp
会议
Biological Window Effects (BWEs) have been investigated in application of extremely low frequency (ELF) magnetic field (MF) in biological field by many scientists.The phenomenon on BWEs appearing in H
会议
Nonthermal processing has been the hot topic for the last two decades in food science and technology.The Institute of Food Technologists (IFT) Nonthermal Processing Division (NPD) and NPD organized sh
会议
本文应用有限元分析软件，采用场路耦合方法仿真一台单相变压器在不同直流偏置情况下的空载运行状态，对其磁场分布、励磁电流、各次谐波以及铁心产生的噪声均进行了详细的分析，得到了随着直流电流的增加变压器主要性能的变化规律。为今后研究抑制变压器直流偏磁的措施打下理论基础。
基于TEAM Problem 21的相关计算数据，本文以一台空心电抗器为例，对其油箱损耗进行计算，并与试验结果进行对比，同时对其在不同激励情况下涡流和磁滞损耗占总损耗的比例进行计算，最终仿真结果与试验结果较吻合。从而表明，要想准确计算油箱损耗，不能单独只考虑油箱的涡流损耗，同时还须考虑磁滞损耗的影响。