介质损耗测量,dielectric loss measurement
1)dielectric loss measurement介质损耗测量
1.This article introduces a new instrument of automaticdielectric loss measurement,illuminates the principle of its system and the analysis method of the data.实验证明,该仪器具有测量准确度高、抗干扰能力强等特点,可以广泛地应用于电气设备介质损耗测量。
2.The effects of various harmonic components of power supply voltage on thedielectric loss measurement are analyzed in detail.通过理论分析和试验实测研究了电源中的各种谐波对西林（Ｓｃｈｅｒｉｎｇ）电桥以及数字介质损耗测量系统中各个环节的影响。
英文短句/例句
1.high-frequency dielectric loss measuring instrument高频电介质损耗测量仪
2.The Design and Research of the Digital Device of Dielectric Loss Measurement Based on DSP;基于DSP的数字式介质损耗测量仪的研究与设计
3.The Research and Development on the Measuring of Dielectric Loss Meter Based on dsSPIC;基于dsPIC的数字式介质损耗测量仪的研究与开发
4.Design on Measuring System of Insulating Oil Dielectric Loss Based on DSP;基于DSP的绝缘油介质损耗测量系统设计
5.A Digital Filter Based on the Integral Dielectric Loss Factor Measurement Algorithm基于数字滤波的介质损耗测量积分算法
6.Dielectricloss factor measurement based on correlation analysis基于相关分析法的介质损耗因素测量
7.High precision real-time on-line measurement method of dielectric loss angle高精度介质损耗角实时在线测量方法
8.Research about Frequency Conversion Measuring System of Dielectric Loss Based on DSP;基于DSP的介质损耗变频测量系统的研究
9.Research about Frequency Conversion Measuring System of Dielectric Loss with DSP Controller;基于DSP控制器的介质损耗变频测量仪的研制
10.Development of Dielectric Loss Measuring Instrument Based on DSP with Variable Frequency Method;基于DSP控制器的介质损耗变频测量装置的研制
11.Influence of signal sampling mode on dielectric loss angle measurement信号的取样方式对介质损耗角测量的影响
12.Dielectric Loss Factor Measurement Based on Kaiser Window Spectral Correction基于Kaiser窗频谱校正的介质损耗因数测量
13.Measurement of dielectric loss based on discrete Fourier transform spectrum correcting algorithms基于DFT频域校正的介质损耗角测量算法
14.Research on Measuring Method of Dielectric Loss and On-line Monitoring Terminal for Phase-shifting Capacitors;移相电容器介质损耗因素测量方法与在线监测终端的研究
15.The Development of a Dissipation Factor Measurement System Based on the Quasi-Synchronous Caculation Method;基于准同步算法的介质损耗因数测量系统的研制
16.Development of a Dissipation Factor Measuring System Using Variable Frequency Series Resonant Voltage;调频串联谐振装置用介质损耗因数测量系统研制
17.Research and Realization of Dielectric Loss Factor On-line Monitoring;介质损耗因数在线检测的研究与实现
18.Research on On-Line Monitoring of Dielectric Loss for Transformer Bushing变压器套管介质损耗在线监测的研究
相关短句/例句
measuring apparatus of the medium losses介质损耗测量仪
3)dielectric loss meter介质损耗测量计
4)modern dielectric loss measurement technology现代介质损耗测量技术
5)dielectric loss measuring set介质损耗测量装置
6)high-frequency dielectric loss measuring instrument高频电介质损耗测量仪
延伸阅读
介质损耗因数测量对反映绝缘材料或电器绝缘介质中能量损耗特性因数的测量。当对绝缘物质施加交流电压时，由于漏电及极化过程，绝缘物质中将有有功电流流动，并产生能量损耗。与此同时，绝缘物质中还有电容性的无功电流流过。有功电流与无功电流之比即称为介质损耗因数。它不受绝缘尺寸的影响，是绝缘物质本身的特性参数。测量介质损耗因数最常用的仪器是西林电桥。西林电桥用于在交流电压下测量绝缘材料或电器设备的电容值和介质损耗因数值。西林电桥的基本回路如图所示，其中Z1(被试品)和C0(无损耗标准电容)是高压臂；R3(可调无感电阻)、R4(无感电阻)和C4（可调电容）是低压臂。高压臂是一些互相独立的部件，它们所能承受的电压决定了电桥的工作电压。低压臂组装在一起，调节R3及C4值可使电桥平衡。电桥平衡时，由可分别求得待测电容量C及介质损耗因数tgδ,其中ω为电源角频率。电桥在高电压下工作时，要正确选择低压臂的参数，使正常情况下低压臂上的压降不超过几伏。低压臂要并联一放电管，以防止高压臂击穿或闪络而在B或C点出现高电位。当被试品电容量较大时,流过R3的电流将很大，R3旁要并联分流电阻。当被试品的一端无法对地绝缘时，可采用反接线。要注意此时桥体（低压臂）处于高电位，应在绝缘台上的屏蔽笼内等电位操作或用绝缘件操作。为减小电磁干扰的影响,可改变电源电压的相位;也可将指零仪正、反接各测一次，再按有关公式求出准确的C和tgδ。
