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1)  dielectric loss factor
介质损耗因数
1.
Cyanate ester resin has lower dielectric loss factor,low and stable dielectric constant.
氰酸酯树脂具有较低的介质损耗因数和低而稳定的介电常数,使用频带宽,力学性能好,吸水率低,是新一代航空航天雷达天线罩理想的基体材料。
2.
Then signification and definition of dielectric loss factor-tanδ is analyzed under harmonics exist.
首先概述了过零点电压比较法、谐波分析法等几种现有的介质损耗因数tanδ数字化测量算法的优缺点,分析tanδ的物理意义及其谐波条件下的定义问题。
3.
An analysis has been made in this paper on the effect of space disturbance upon capacitive bushing dielectric loss factor tanδ measurement,which appears to be smaller value than the normal,sometimes even to be a negative value,in site test.
空间干扰对现场试验中出现的电容式套管介质损耗因数tanδ可造成影响,使其偏小甚至出现负值。
2)  dielectric dissipation factor
介质损耗因数
1.
At 220 kV CVT of Line Gunan, both capacity and dielectric dissipation factor are valuably measured.
论述了通过合理接线实现不拆高压引线测量220kV电容式电压互感器(CVT)的原理和方法,实测固南线CVT的电容量及介质损耗因数,其试验数据与拆高压引线测量的数据进行对比,证明该法准确、高效、切实可行。
2.
Through theoretical and practical analyses on dielectric dissipation factor measuring methods of capacitive current transformer with positive and negative connecting modes, the authors propose an onsite measuring method, which can diminish the working strength and enhance the working efficiency.
通过对正、反两种接线方法对电容型电流互感器的绝缘介质损耗因数的测量理论与实践分析,提出在实际测量中减少工作量、提高工作效率的测量方法。
3.
Dielectric dissipation factor (tanδ) 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.
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。
3)  dissipation factor
介质损耗因数
1.
Analysis of volume resistivity tests and dissipation factor tests for insulating oil;
关于绝缘油体积电阻率试验和介质损耗因数试验的分析
2.
Discussion on standard of dissipation factor of film and paper capacitor;
膜纸复合绝缘电容器介质损耗因数的标准讨论
3.
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
4)  dielectric loss tangent
介质损耗因数
1.
Method for measuring grain moisture content based on dielectric loss tangent;
基于介质损耗因数的粮食水分测量方法
2.
The principle of on-line monitoring on dielectric loss tangent of capacitive equipment is introduced as well as the source of high-frequency pulse and random signals which affect the measurement result.
介绍了容性设备介质损耗因数在线监测的基本原理,介绍了高频脉冲信号和随机信号的来源及其对测量结果影响。
3.
high voltage capacitive-type equipment plays a very important role in power systems, and dielectric loss tangent (tan5) is an important paramete.
高压电容型设备在变电站中占有相当大的比例,而介质损耗因数(tan δ)是反映其绝缘状况的重要参数。
5)  medium wasting factor tgδ
介质损耗因数tgδ
1.
This article analysed the affection from the environment humidity, disturbance of intense voltage, linking mode etc on measurement result on the bases of spot fact condition, and the method to decrease or weaken the disturbance factor, which can cause the exact measurement on medium wasting factor tgδ and improve the veracity of.
介质损耗因数tgδ往往受气候条件或环境因素的影响,若忽视这些影响将会使测量结果出现偏差,从而造成误判断。
6)  dielectric loss tangent
介质损耗因数角
补充资料:介质损耗因数
分子式:
CAS号:

性质:又称介质损耗角正切,介电损耗角正切。表征电介质材料在施加电场后介质损耗大小的物理量,以tgδ表示,δ是介电损耗角。它表征每个周期内介质损耗的能量与其贮存能量之比。高分子材料多系绝缘性好的材料,广泛的用于电子及电工行业。使用时不希望绝缘材料本身能量损耗大,因而测量出介质损耗因数就能评价材料的介质本身能量损耗。工业上多选用介质损耗因数小的高分子材料作为绝缘材料。通常极性橡胶的tanδ比非极性橡胶的大。它还与试验采用的频率、温度紧密相关。在一定温度下,只有在某一频率范围内,分子偶极取向虽可追随电场变化,但不完全同步,有部分电能被吸收而发热,tanδ出现最大值。同样在一定频率下,惟有某一温度区域内tanδ才会出现极大值,当频率升高时,介质损耗峰移向高温端。 

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