出故障的

First of all, we analogize out the calculation formula of short circuit current in the distribution systems with dispersed generations through basic circuit theory.

文中首先以电路分析原理推导出含有分散式电源之配电系统的各种短路故障电流计算公式，续由这些公式分析在甚麼情况下的短路电流会最大以及并联位置和产生之短路电流的关系如何，最后利用电脑程式模拟并验证推论结果的正确性。

In addition, failure of combiner and splitter of BTS will also cause unidirectional communication of the mobile phone.

BSC的DSN板出现时隙接续的错误造成此问题的可能性也比较大；另外BTS的合路器和分路器故障也由可能导致手机单通。

We also propose the structure of intelligent sensor system for collecting the pre-fault sign, the pick-up and analyzing method to the pre-fault sign. Give the structure of intelligent fault-tolerant computer system that based on fault prediction.

研究了软件容错的方法，特别是单版本复指软件对瞬时硬件故障有良好的容错特性，文中提出了实现单版本复执软件的实用方法，并给出了分块复执软件实现的条件。

Factor analysis is a very popular multivariate statistical analysis method. It can summarize some unobservable factors from the test results which can summarize most of the observed data. The factor analysis suggest the DP, furfuran and CO_X can be divided into insulation aging factor, while the hydrocarbon gas and hydrogen were divided into another group which can be called insulation fault factor. The result of the factor analysis

因子分析作为一种常用的多元统计分析方法，可从众多可观测变量中，概括和推论出少数不可观测的潜变量，用最少的因子去概括和解释大量的观测事实；本文将试验过程中90℃下油中溶解气体、绝缘聚合度、糠醛等参量进行因子分析，结果表明：绝缘聚合度、糠醛、CO_x被分为一类，代表绝缘老化因子：烃类、氢气、被分为一类，代表绝缘故障因子；因子分析结果与现场经验一致，相互印证，具有重要意义。

By projecting signals with different frequencies into the subspace I, the signal with the supply frequency has the maximum value. Consequently, in the spectrum of the reciprocal of the projecting value, the supply frequency component is cut off and the fault feature component emerges in the spectrum.

把不同频率的信号投影到子空间I，基频信号在该空间的投影将远大于其他的频率分量，因此在投影的倒数谱中，基频分量被抑制，凸显出了故障频率分量。

Excellent location results were obtained in double terminals simulation of travelling wave fault location.

本文利用仿真试验的办法计算出所能检测到的行波浪涌的平均传播速度，并将其用于行波故障测距的计算，将测距误差控制在300m以内。

Through an introduction to the reaction principles and technical process of Ni-P chemical plating, and the investigation and analysis of anti-corrosive processing faults of Ni-P plating on the down-hole tool of present oilfields, some exact reasons are found out which causes the unstableness of anti-corrosive processing quality on down-hole tool s.

对Ni-P化学镀的反应原理和工艺流程作了介绍，对当前油田井下工具的Ni-P镀防腐处理故障情况进行了调查分析，找出了井下工具防腐处理质量不稳定的具体原因，并提出了提高施镀基面的精度要求等相应的改进对策。

Through an introduction to the reaction principles and technical process of Ni-P chemical plating, and the investigation and analysis of anti-corrosive processing faults of Ni-P plating on the down-hole tool of present oilfields, some exact reasons are found out which causes the unstableness of anti-corrosive processing quality on down-hole tools.

对Ni-P化学镀的反应原理和工艺流程作了介绍，对当前油田井下工具的 Ni-P镀防腐处理故障情况进行了调查分析，找出了井下工具防腐处理质量不稳定的具体原因，并提出了提高施镀基面的精度要求等相应的改进对策。

From the original signal of"ladder type" undercut, it is difficult to find out the exception, through observing the undercut signal by means of the"focalizing scanning"of wavelet transform in time-frequency domain, the fault features are accurately extracted. The results reveal that this method has flexibility to the variation of tool diameters, tooth of cutter and cutting parameters.

在&阶梯型&过切的原始信号上几乎看不出信号有明显异常现象，在时频空间采用小波分析方法&聚焦式&扫描观察&阶梯型&过切信息，能准确地提取过切的故障特征，研究表明，该方法对刀具直径、刀具齿数及切削参数的改变有较强的适应性。

When instantaneous and permanent fault can be identified correctly, the reclosing time can be set respectively for instantaneous and permanent fault.

给出了计算永久性故障最佳重合时刻的方法，对实际系统的仿真表明了本文方法的有效性。 4。对电力系统中如何应用最佳重合闸时间作了一些讨论。

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。