介质损耗因数

本文首先分析了传统谐波分析法测特点以及由此产生栅栏效应和频谱泄漏的原因，在参考电容型设备介质损耗因数在线检测技术的基础上，运用加窗插值技术进行改进仿真分析。

Firstly , the paper analysised main reason of the " stockade effect " and the frequency spectrum divulges , and then introduced adding window technical as well as the MATLAB simulation software to research electric capacity equipment dielectric power factor on-line examination .

电流互感器介质损耗因数与温度的关系

Relation between Dielectric Power Factor and Temperature inCurrent Transformer

基于DSP的容性设备介质损耗因数在线监测方法

Method for on-line monitoring the dielectric dissipation factor of high voltage capacitive apparatus

用傅里叶变换测量介质损耗因数tanδ的软件同步算法

New Emendatory FFT Algorithm of Measuring Dielectric Loss Factor tan δ

电流互感器高电压介质损耗因数tanδ的测量

Measurement of High Voltage Dielectric Loss Factor tan δ of Current Transformer Test

基于Kaiser窗频谱校正的介质损耗因数测量

Dielectric Loss Factor Measurement Based on Kaiser Window Spectral Correction

介质损耗因数（tanδ）是绝缘在线监测的一个重要参数，它能很好地反映电容型设备的绝缘状况。

Dielectric dissipation factor ( tan δ) is a key parameter in capacitive power equipment insulation on-line monitoring , which can reflect the insulation station of the capacitive equipments such as Bush and CT .

测试得出薄膜的介电常数为20~30之间（10~20kHz），介质损耗因数为0.001（20kHz）。

The dielectric of the films was 20 ~ 30 ( 10 ~ 20kHz ), the dielectric loss tangent was 0.001 ( 20kHz ) .

并指出：QS1西林电桥不适于测试膜纸复合绝缘电容器的介质损耗因数，推荐采用变频电桥；

It is also indicated that the QS1 Schering bridge is not applicable for the said test and the use of converter bridges suggested ;

基于介质损耗因数的粮食水分测量方法

Method for measuring grain moisture content based on dielectric loss tangent

电容式电流互感器电容屏材料对介质损耗因数的影响

Influence of Capacitance Plates for Capacitor Current Transformers on Dissipation Factors

环境因素对电容型设备介质损耗因数影响规律的试验研究

Experimental Research on Environmental Influence on tan δ of Capacitive Equipment

电容型试品介质损耗因数变化的原因与分析

Reason and Its Analysis of Changing Dielectric Dissipation Factor of Capacitive Testee

谐波分析法介质损耗因数测量的误差分析

Error Analysis for the Dielectric Loss Factor Measurement Based on Harmonic Analysis

电容型设备介质损耗因数在线监测研究

Research on On - Line Monitoring for Dielectric Loss of Capacitive Equipment

介质损耗因数测量的谱泄漏对消算法

Spectral Leakage Cancel Algorithm for Dielectric Loss Factor Measurement

高压电抗器油介质损耗因数升高问题的解决

Method to Solve the Problem of HV Reactance Oil Dielectric Loss Factor Increase

提高介质损耗因数监测准确度的算法

Robust algorithm for accurately monitoring the dielectric loss factor

介质损耗因数的卷积窗加权算法

Convolution Window Weighted Algorithm for Dielectric Loss Factor

介质损耗因数是反映设备绝缘状况的重要参数。

Dielectric loss tangent is the most important parameter that reflects the apparatus'insulation condition .

谐波条件下高压电气设备介质损耗因数的定义和数字化算法

Definition and Digital Algorithms for Dielectric Loss Factor of High Voltage Power Apparatus under Harmonics Condition

蜂蜜的介质损耗因数呈现明显的介电松弛现象。

The dielectric loss factor of honey and water added honey solutions appeared obvious dielectric relaxation .

本文研制了一套在调频串联谐振电压下进行介质损耗因数测量的系统。

The author has developed a dissipation factor measuring system using the variable frequency series resonant voltage .

线路电晕对测量电流互感器介质损耗因数的影响及其正确布线的方法

Effect of Line Corona on Measuring Dielectric Dissipation Factor of Current Transformer and Correct Circuit Connection Patterns

采用支持向量机和遗传算法的电容型设备介质损耗因数修正方法

Modified Method on Dielectric Loss Factor of Capacitive Equipment Based on Support Vector Machine and Genetic Algorithm

而且油流带电电荷密度与介质损耗因数和电导率有一定的相关性。

And the charge density of oil streaming electrification is related to the dielectric loss factor and conductivity .

GB/T5654-1985液体绝缘材料工频相对介电常数、介质损耗因数和体积电阻率的测量

" Measurement of relative permittivity , dielectric dissipation factor at power frequency and volume resistivity of insulating liquids "

松弛频率随着温度的升高而增大，而介质损耗因数的最大值随温度升高无明显的变化。

The relaxation frequency increased with increasing temperature , but the maximum of loss factors there showed little change .

数字信号试验结果表明该算法有较高的准确度，能够满足介质损耗因数在线监测的要求。

The result of data signal trial proves that it has higher accuracy and satisfies on-line monitoring of dielectric loss .

通过对传感器的标定并对测试数据进行相应的回归处理，得到了介质损耗因数和粮食水分的函数关系。

Through demarcating sensor and corresponding regressive ( processing ), the relationship between dielectric loss tangent and grain moisture content can be obtained .