绝缘

It is found that the metal-insulator transition temperature Tm is related to average ion size of A site.

通过电输运性质的测量给出了金属-绝缘转变温度 Tm 与 A 位离子平均半径之间的关联。

In this paper, their origin and frequency spectrum characteristics were analyzed and a new digital filtering method based on the transversal inhibition effect of MAXNET was proposed.

电力变压器局部放电在线监测技术是一门综合性的新技术，由于在线监测的对象是正在运行中的电力变压器，因此对及时准确了解变压器绝缘状况有着十分积极的意义。

Table 2-2 in Section 2.2.2 summarizes the relative triboelectric effects of various insulating materials.

2.2.2节的表2-2摘要地列出了各种绝缘材料之间摩擦电效应的相对关系。

Triboelectric currents are generated by charges created by friction between a conductor and an insulator, such as between the conductor and the insulation of a coax cable.

摩擦电流是由导体和绝缘体之间的摩擦引起的电荷产生的，例如同轴电缆的导线和绝缘之间。

To evaluate the severity of damage and identify the damaged winding s, this paper presents a method that uses the comprehensive information, including the value and waveform of the fault current, insulation resistance, oil-dissolved gas analysis, winding resistance, turns ratio, deformation detection, and it is of significance to the fault elimination.

介绍了综合利用短路电流值和波形、绝缘电阻、色谱、直流电阻、变压比、绕组变形等资料和手段判断大型变压器低压侧出口短路事故的严重程度、被损坏绕组的相别，为故障的处理提供参考。

The ultra -- high -- frequency and ultra -- wideband partial discharge detecting methods is newly put forward. It is important for development of partial discharge de...

本文简明扼要地阐述了局部放电信号的物理本质和超宽频带检测原理，运用自行研制的超宽频带局部放电检测系统，研究了典型放电信号和干扰信号的本征特征，为进一步建立超宽频带局部放电检测指纹库、提高绝缘诊断的准确性奠定了基础。

In gas insulated switchgear the partial discharge causes ultra high frequency electromagnetic wave signals within the switchgear body.

气体绝缘组合电器(gas insulated switchgear，GIS)中的局部放电在腔体中产生超高频(ultra high frequency，UHF)电磁波信号。

An online monitoring system of partial discharge in GIS based on ultra high frequency method is introduced in this paper,it can be real-time monitoring the discharge of fixed particles, unbound particles, floating electrode and insulation defects, accurately reflecting the state of 1000kV GIS.

介绍一种基于UHF方法的GIS局放在线监测系统，可以实现对1000kV GIS内部固定粒子、自由粒子、浮动电极及绝缘缺陷放电情况的实时监测，准确反映1000kV GIS的状态，给1000kV GIS的运行维护工作带来很大帮助。

In accordance with the technological difficulties encountered in the process of insulation supervision based on the Dissolved Gases Analysis,several kinds of model and method are presented to improve the reliability and precision of fault diagnosis of the power transformer. Main research content includes:By deeply studying the common transformer faults diagnosing methods,such as three-ratio methods and improved electrical committee agreements,several shortcomings such as uncertainness judgment when the fault reasons,phenomenon and principles come out together while can not consistent to each other etc. For this reason,the old methods can not fully meet the need to engineering practical application.Considering fuzzy relationship matrix can fully represents the causality between fault symptoms and fault types,when diagnosing complex equipments with multiple symptoms and fault causes such as power transformer,a synthetic fuzzy diagnosing model is firstly proposed to diagnose transformers insulation faults based on DGA in this paper. Meanwhile,by further study the character of fuzzy factors,aimed at correcting the defects in classifying fuzzy sets of common fuzzy judgment,a method are put forward by unifying fuzzy synthetic diagnosis and fuzzy principle reasoning.

本文针对应用油中溶解气体分析方法进行变压器绝缘监督时所遇到的主要技术难点，提出了提高变压器故障诊断的准确性、可靠性的几种模诊断方法，主要研究内容有：通过对判断变压器故障常用的三比值法和改良电协研法的深入分析，其诊断准确率较高，但对故障原因、故障现象和故障机理间同时存在不确定性和模糊性的变压器等电气设备的故障诊断，难于满足工程应用的需要；在处理变压器等结构复杂设备的多症状、多原因故障诊断时，模糊关系矩阵可以全面反映这种症状与故障类型间的因果关系，进而提出了变压器故障诊断的模糊综合诊断模型；同时作者还深入分析了模糊算子的特性；针对常用的模糊评判结果的模糊集的集化方法的不足性，提出了将模糊综合诊断与模糊规则推理结合起来进行故障诊断的方法，能达到较好的效果。

In this paper, based on high-power switching devices insulated gate bipolar transistor, a novel sinusoidal signal generator applied to UHV-FTRTPS is developed. The generator possesses plenty of merits: uncompounded structure, less components and easy maintenance.

提出采用大功率开关器件绝缘栅双极晶体管(insulated gate bipolar transistor，IGBT)来代替模拟器件产生特高压试验所需的正弦信号，结构简单、元器件数目少、易维护。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷