短路的

Product characteristics : 1, excellent heat resistance : can adapt to the use of power lines due process overload and short circuit of the high temperature; 2, excellent electrical properties : material for the performance of their higher intensity and volume resistivity of insulation, security is good; 3. excellent corrosion resistance and anti-aging properties : apply to the soil and working environment, long life; 4. excellent flame retardance : difficult combustion; 5, smooth wall formation, the friction coefficient, good wear resistance : in the installation process can greatly reduce the damage to power lines, improve work efficiency; with the traditional asbestos cement pipes, the The product is light weight, good flexibility, earthquake-resistant and differential settlement, and not at the construction site encapsulation pouring concrete; Transport construction is simple, low cost, can greatly shorten the construction period.

产品特点： 1、优良的耐热性能：能适应电力电缆使用过程因过载短路而产生的高温； 2、优良的电气性能：材料自身表现为较高绝缘强度和体积电阻率，安全性好； 3、优异的耐腐蚀性能和抗老化性能：适用于各种土壤和工作环境，使用寿命长； 4、优良的阻燃性能：不易燃烧； 5、内壁光滑平整、摩擦系数小，耐磨性能好：在敷设过程中可大大降低对电缆的损害，提高工作效率；与传统的石棉水泥管相比，产品的重量轻、柔性好、抗震性及抗不均匀沉降好，无须在施工现场包封浇混凝土；运输施工简便，费用低，可大大缩短工期。

This paper introduces the selection of the heat relay s type and current its reset mode, points out that connection wire section of rated current of heat relay should be selected according to strict rules it can not take as the protective device of wire short circuit puts forward working environment and temperature of heat relay and matters needing attention of reset after operation.

介绍了热继电器的类型选择、电流的选择、复位形式，指出热继电器的连接导线截面应按规定选择，热继电器不能作为线路的短路保护装置，热继电器的工作环境温度，动作后的复位等注意事项。

Upside-down taper extracting tank is very beneficial to the circulative extraction from downwards to upward, through the water dividing board and sieve specially designed at the tank bottom, the extracted solvent can make upward movement evenly from the tank bottom. As the tank volume gradually decreases from the tank bottom to the tank top, the short circuit during the flow of solvent can be avoided. Upside-down taper extracting tank is the ideal upgraded equipment for the technology requiring the realization of dynamic extraction processing.

倒锥型提取罐对溶剂的循环提取极为有利，当提取溶剂从上到下循环提取时，通过罐底专门设计的分水板和筛网，提取溶剂能够均匀地从罐底部向上运动，而且由于从罐底部向灌顶部逐渐缩小，所以能很好的避免溶剂流动时短路现象，对于需要实现动态提取加工的工艺而言，倒锥型提取罐是极为理想的升级换代设备。

In the whole system, the inner leak system is occurred to the lower pressure bypass system, this will directly cause the high quality reheated steam to reach to condenser, meanwhile increase the heat load of condenser, and the economy benefit of the unit will decreased.

整个系统存在的内漏主要是低压旁路低压旁路的泄漏，直接造成了高品质的再热蒸汽短路到凝汽器，同时增加了凝汽器的热负荷，对机组经济性的影响较大。

Combined with the way of judging whether the fault is before or behind series-wound compensator by capacitor parameters and the calculated short-circuit reactance by Fourier transform,the fault is located using the relation table between reactance and distance.

结合该识别方法和已有文献所述的电容参数识别的判别故障点在区间电容前或电容后的方法，最后根据傅里叶算法计算的短路电抗值，实现基于电抗法的查表测距。

Based on our formula of width equivalence of SIW and RW, the formula of length equivalence of SIW and RW has been derived, which is expected to find wide applications in the engineering design of SIW filter and resonance cavity.

根据已知的SIW和RW之间的宽度等效公式，通过对传播常数的分析，推导出SIW和等效的矩形波导之间的长度等效公式，这个公式在计算SIW短路结构和谐振腔时很实用。

Basing on this, this paper proposes a generalized shortest path method. That is, by constructing an intermodal-network multi-ply graph which interrelates the data and information in transit with the nodes and sides of the graph, adding virtual origin and destination stations to the graph, and then analyzing transport costs and transfer costs, this paper applies the Dijkstra algorithm to solve the intermodal optimal transport path problem so as to get the intermodal transport plan with the least generalized costs.

在此基础上，提出一种求解最佳运输路线的广义最短路法，即通过构建多式联运网络多重图，将运输过程中的数据、信息和图中的节点、边关联起来，然后对运输费用和中转费用进行分析估计，并通过在联运网络图中加入虚拟的发、到站，使得该问题可用Dijkstra算法进行求解，从而获得广义费用最少的联运方案。

The tripping device is basically divided into the instantaneous electromagnetic release and the time delay thermal release, which are used for protection of circuit from shortcircuit and overload respectively.

断路器由瞬时动作的电磁脱扣器和延时动作的热脱扣器组成，分别用作线路的短路和过载保护。250A及以上的断路器，其电磁铁脱扣器是可调的。

Finally, the application of parameters of the traps (such as trap density, trap level distribution and so on) to study the electrical aging in polymer was discussed. Considering the close relation between space charge and trap in polymer, the space charge distributions of aged LDPE samples with and without FRS were measured.

考虑到聚合物中空间电荷与陷断的密切关系，考察了电老化过程中纯聚乙烯及合自由基清除剂的试样的空间电荷变化规律，并且运用聚合物的能带模型解释了聚乙烯经过直流预压后，在短路过程中空间电荷极性发生反转的原因。

Considering the close relation between space charge and trap in polymer, the space charge distributions of aged LDPE samples with and without FRS were measured. For the first time, the polarity convert of the space charge in prestressed samples during the short circuit time was explained according to the energy band model of the polymer.

考虑到聚合物中空间电荷与陷阱的密切关系，考察了电老化过程中纯聚乙烯及含自由基清除剂的试样的空间电荷变化规律，并且运用聚合物的能带模型解释了聚乙烯经过直流预压后，在短路过程中空间电荷极性发生反转的原因。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。