查询词典 power distribution system

In order to study the negativesequence influence to regional power grid caused by autotransformer traction power supply system, formulas of NSeq current and threephase voltage imbalance were derived, based on current distribution analysis of AT traction power supply system and singlephase VVconfiguration train substation. Employing the "train diagram" method, the realtime voltageimbalance curve was obtained in a simulation study, as well as the factors that influence NSeq and some measures to restrain it.

为研究自耦变压器牵引供电系统对地区电网造成的负序影响，首先讨论了AT牵引供电系统、单相VV接线牵引变电站的电流分布，推导得出了负序电流、三相电压不平衡度的计算公式；然后结合"列车运行图法"开发了相应的仿真程序；最后通过一个实际算例，得到了实时电压不平衡度曲线，指出了负序大小的影响因素及相应措施。

The article analyze the status in quo of the power distribution geographical information system, GIS and the subject of the entity in the meantime, describing the demand analysis, general layout, the module curtate, module of the power distribution geographical information system, GIS main function.

文章同时分析了配电地理信息系统的现状及存在的问题，描述了配电地理信息系统的需求分析、总体设计、模块划分、模块主要功能。

From power load,power supply,indoor distribution system,illumination,weak-current design,distribution board,ground protection,lighting protecti on design and other aspects electrical design of multistoried house is discussed in order to meet new requirements on housing project.

从住宅用电负荷，住宅供电，户内配电系统，照明、插座布置，弱电设计，配电箱、开关、插座的安装，接地保护，防雷设计等方面对多层住宅电气的设计进行了探讨，以满足住宅工程的新需求。

AC Power Supply System Communication Power Supply System exchanges generally are high-voltage power distribution, step-down transformer, Chai oil-fired units, UPS and low-voltage distribution screen composition.

通信电源的交流供电系统一般由高压配电所、降压变压器、柴油发电机组、UPS和低压配电屏组成。

ABB's scope of supply also includes a new 400/220-kilovolt switchyard to supply the new smelter plant with reliable power, as well as a high-performance process control system with fiber optic current sensors, as well as an ABB MicroSCADA control system for the power distribution network , substation switching bays, power and station transformers.

ABB的供应范围还包括一个新的400/220千伏的配电装置，为新炼铝厂提供可靠的电力，以及一套具备光纤电流传感器的高性能过程控制系统，还有一套用于配电网络、变电站配电舱、电力和电站变压器的ABB MicroSCADA控制系统。

Building power distribution system; fault arcing; wavelet transform; artificial neural network; fault detection

建筑配电系统；故障电弧；小波变换；人工神经网络；故障检测

This article describes the main tache which will impact power supply safety of core machine/equipment room ,including high-lower power distribution,generators,uninterrupted power supply,switch power supply,exact air-condition environment,lightningproof earthing system,power system monitoring system,maintenance management flow and maintenance ability of vindicator etc.

本文从影响核心机房供电安全的主要环节：高低压配电、发电机组、UPS、开关电源、机房空调环境、防雷接地、动力环境监控系统、维护管理流程及维护人员技能等方面出发，对安全评估的客观性保障、安全评估的内容及评价体系、安全评估的实施操作、安全评估应达到的效果进行详细的分析，从而指导核心机房的供电安全评估项目的有效开展。

Exchange power supply system including electrical network height power source, kerosene engine power set emergency power supply (long time emergency power supply), integral part's UPS power source; The cocurrent power supply system by the rectifier, the accumulator cell (short time emergency power supply), the direct-current converter as well as the corresponding power distribution cabinet is composed; The good earth and the antimine device, may improve the correspondence quality, guarantees the communication facility and operator's security.

交流供电系统包括电网高低电源、油机发电机组备用电源、重要部门的UPS电源；直流供电系统则由整流器、蓄电池、直流变换器以及相应的配电柜组成；良好的接地和防雷装置，可以提高通信质量，确保通信设备及操作人员的安全。

Due to the fast growth of domestic economy, the power demand has been continuously increasing, So that, the capacity of Taiwan Power Company existing 69 kV power supply system has not be sufficient to meet current demand, TPC is forced to upgrade the distribution power system to the upper level of 161 kV system completely for higher capacity of feeder cable and higher quality of power supply.

摘要 由於国内经济快速成长，对电力的需求不断增加，台电原有的69 kV供电设施已不敷使用，必须全面改用161 kV供电系统俾扩大馈线供电容量及供电品质；且因为对都市景观、电力品质及供电的稳定性等要求，架空输电线路地下化乃成为未来供电业亟待解决之课题。

The main products are: all kinds of out of style, power distribution cabinets, as well as fixed capacitance cabinet; central air-conditioning automatic control system; a variety of lighting boxes, wall-mounted box, outdoor waterproof box, meter boxes, power boxes; a variety of fire control box , joint boxes, console; a variety of dual-power switch box, since the lotus root decompression starter boxes, variable frequency constant pressure water supply system.

主要生产的产品有：各种抽出式、固定式配电柜以及电容柜；中央空调自动控制系统；各种照明箱、挂墙箱、室外防水箱、电表箱、动力箱；各种消防控制箱、联动箱、控制台；各种双电源切换箱、自藕减压起动箱、变频恒压供水系统。

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。