电网

When an apparatus contains a lot of the same harmonic current generators, the phase shift transformer technique is widely used to deduce its inference.

中文摘要：摘要：当三相电气装置含有多个同一的谐波电流发生源时，可应用移相变压器技术抑制输入侧电流谐波，以减小对电网的污染。

The proposed method can work well under asymmetry element parmeters, and it is not necessary to consider the phase shift of ideal transformer or using multi-port net theory, which make the proposed method more applicable and simplify the calculation program. The method is also capable of handling various unsymmetrical calcuations, such as the fault calcuation for power system without complete transposition.

相分量算法不要求电力系统元件参数对称或循环对称、不利用多端口网络理论及理想变压器的移相，拓宽了故障计算的适用范围、简化了编程难度，并可推广到处理诸如线路换位不完全的参数不对称等其他电网不对称计算。

To deal with this problem,a solution integrating two PWM rectifiers by parallel connection was presented.

推导正、负序电流与电网正、负序电压及直流功率的关系，并设计出控制系统。

In the practiser, the paper mainly staudies GML integration and map display and alternation operation of ma...

论文对基于GML的配电网地理信息系统做了分析研究，在研究中运用了XML、GML、SVG、Java、JavaScript等技术。

In these key projects, the Shanghai Pudong Development Bank that will focus on support Hongqiao transport hub, rail transportation, the Expo venue construction, petrochemical and other projects, and increase corporate energy reduction, environmental improvement projects such as support; Shanghai Bank new credit also point to rail transportation planning, highways, railways, ports, Expo supporting projects, such as water, electricity and gas utilities and telecommunications, power grids, petroleum, petrochemical, and other key basic industries.

在这些重点项目上，浦发银行称，将重点支持虹桥交通枢纽、轨道交通、世博场馆建设、石油化工等项目，并将加大对企业节能减排、环境治理等项目的支持；上海银行新的信贷规划也指向轨道交通、公路、铁路、港口、世博配套项目等，水电煤气等公用事业和电信、电网、石油石化等重点基础产业。

Inherent defects of porcelain post insulator constitute serious threat for service safety of power system.

支柱瓷绝缘子存在的缺陷严重威胁电网的安全运行。

The structures, features, application principles and on-site applications of six kinds of prevention products developed on the basis of above mentioned methods, i.e., the insulation striped arc-protection fitting, clamping post porcelain/ composite insulator, stab-type arc-protection fitting, stab-type clamping post porcelain/composite insulator, ring electrode MOA with external series gap and stab-type electrode MOA with external series gap, are presented.

分析了10 kV配电网绝缘导线雷击断线机理，归纳出&疏导式&和&堵塞式&2种防护思路，介绍了基于2种防护思路研制的剥线型防弧金具、放电箝位柱式瓷/复合绝缘子、穿刺型防弧金具、穿刺型放电箝位柱式瓷/复合绝缘子、环形电极带外串联间隙金属氧化物避雷器和穿刺电极带外串联间隙金属氧化物避雷器6种防护产品的结构、特点、应用原则及现场应用情况。

During the current 10th Five Year Plan, China is developing 2,200 power grid biogas engineering projects for wastes from intensive animal husbandry and poultry, treating more than 60 million tonnes of manure a year, that's in addition to the 137,000 installed digesters to treat sewage.

&十五&期间，为了有效利用家畜/禽养殖基地的动物粪便，中国将开发2200个可接入电网的沼气发电工程。年处理6000多万吨粪肥。这还不包括13.7万个处理污水的沼气池。

With application costs decreasing of power cable and rebuilding of power network, power cable is being widely used.

随着电力电缆应用成本的下降和城市电网改造工作的开展，电力电缆获得了越来越广泛的应用。

XLPE power cable is widely used in grid system for its series of merits.

交联聚乙烯电力电缆由于其自身的一系列优点，在高压电网中得到了越来越广泛的应用。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。