绝缘

Be based on Matlab to emulate computational software, to jacket medium faradic build a model respectively with capacitance electric current, the response that discussed cable jacket to be isolated from to issue jacket electric current in all sorts of breakdown is characteristic.

基于Matlab仿真计算软件，对护套中的感应电流和电容电流分别建立模型，讨论了电缆护套绝缘在各种故障下护套电流的响应特性。

A low minimum operating supply voltage of 2.9V, and a low shutdown quiescent current of less than 1μA, make the LT3757 ideally suited for battery-operated systems.The LT3757 features soft-start and frequency foldback functions to limit inductor current during start-up and output short-circuit.The device is available in a small 10-lead DFN (3mmx 3mm) or MSOP package.

本文介绍了LT3757主要特性，方框图以及典型应用电路，包括高效升压转换器， 3.3V输入，5V/10A输出升压转换器， 8-16V输入24V/2A输出升压转换器，高压反激电源电路，以及5.5V-36V输入，12V/2A输出SEPIC转换器和非绝缘的反相SLIC电源。

Higher temperatures require more robust casing and nozzle materials, insulation, or ablative coatings.

较高的温度，需要更强有力的套管和喷嘴材料，绝缘，或烧蚀防热涂料。

Only when it takes humidity ratio H/? as independent variable instead of absolute humidity H in researching and calculating the influence degree of the humidity on the discharge voltage, the emendation coefficients of relative air density and humidity can be independence, and can reflect the influence degree of atmospheric parameters on outer insulation discharge voltage actually.

当以比湿H／δ代替绝对湿度H为自变量研究和计算湿度对放电电压的影响程度时，相对空气密度校正系数和湿度校正系数才能相互独立，才能真实地反映大气参数对电气设备外绝缘放电电压的影响程度。

It is of a high insulation, activity and absorption, and good reinforcing effect.

具有良好的活性和吸附率，补强效果好，有很高的绝缘性。

In contrast, the concentration of deep defects is very low in annealed undoped InP and the doping of Fe acceptor by diffusion acts as the only compensation centre to pin the Fermi level, resulting in excellent electrical performance.

相比之下，非掺退火半绝缘InP材料中深能级缺陷浓度很低，通过扩散掺入的铁受主作为唯一的补偿中心钉扎费米能级，因而表现出优异的电学性质。

"Silicone rubbers are used as electrical insulators in encapsulations, coatings, and varnish es; as gaskets and caulking material; in specialized tubing; as automobile engine components; as flexible windows in face masks and air locks; for laminating glass cloth; and as surgical membranes and implants."

硅酮橡胶常被用来做电绝缘材料、覆盖物和清漆、绝缘垫圈、特殊管道绝缘层、汽车引擎成分、面罩和气锁的活动玻璃、层压玻璃布，还可被用作外科手术膜和移植膜。

The ohmic resistance of insulation.

绝缘电阻绝缘的欧姆电阻。

The conclusion that dissolved gases in gas composition and content of transformer could embody the inside of the transformer"s situation about "the insulation fault effectively is concluded.In the research of power equipment fault diagnosis based dissolved gases in transformer oil, the fault type increase clearly with the fault development. Traditional way is inability to faults diagnose of electrical equipment such as transformer that the fault reason, phenomenon and principle are indeterminacy etc.

在以油中溶解气体分析电气设备故障的模式识别研究中，当故障进一步发展，待判别的类型将显著增加，由于传统的诊断方法缺乏对样本数据的科学分析，不能够真实体现特征量数据的规律，将不可避免的面临准确率下降的问题，且不可能提供类间相互关系或演变过程的信息，因此用新的诊断方法来解决此类问题十分必要；本文在对目前变压器内部绝缘故障常用诊断方法总结分析的基础上，利用模糊数学的思想，提出以油中溶解气体为特征量，采用模糊聚类的方法对变压器内部绝缘故障进行诊断。

R20- revise to absolute value of 20℃, Rt- is the absolute resistance vale under measuring temperature

式中：R20-校正到20℃时的绝缘电阻值；Rt-在测量温度下的绝缘电阻值

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。