电网

National Grid will deploy the technology in its up-state New York and New England electric operations control centers to manage the transmission and distribution networks in the region.

美国国家电网将采用该技术在其最新的纽约和新英格兰电力调度控制中心，管理该地区的输配电网络。

Before a small electricity net accident takas place, Anqing Petrochemical Works must organize a plan with the accident.

在安徽省安庆地区电网可能发生&小网运行&事故前，安庆石化热电厂应编制好事故处理预案。

The National Sea Life Sanctuary in Oban has installed an electric fence and surveillance cameras to protect its Canadian guests, Fingal and Sula, according to The Independent.

据英国《独立报》报道，位于英国奥本的&国家海洋生物救护所&已经为这两位加拿大远道而来的&贵客&--芬戈尔和苏拉--安装了电网和监控相机，以保护它们的安全。

The following functions can be realized: Measuerment:the effective values of three phase current and voltage, power frequency, active power, reactive power, power factor etc. Motor control: direct starting, converse starting, star and triangle starting, self-starting. Protection:thermal overload protection, current leakage protection, open-phase protection, three-phase unbalance protection, over voltage protection, loss voltage protection, low load protection and fault warning and fault dates memory. Communication: communication of the computer in control room and the microcomputer monitor in the spots is realized by the interface of RS-485. The motor is not only controlled in the spots but also in control room. The dates, information and some functions are shared by the spots and control room too.

该电动机监控器以80C196KC单片机为核心，通过采样三相电流﹑电压信号来实现以下功能：三相电流﹑电压有效值，电网频率，有功功率，无功功率及功率因数等的测量；对电动机实现直接、正反转、星三角及自起动控制；对电动机实现热过载、漏电、断相、三相不平衡、过压、欠压及轻载保护，对故障进行报警及数据记忆；通过RS-485串行接口与中央控制室计算机实现通信功能，对电动机既可本地，也可远程控制；实现控制现场与控制室之间数据、信息、功能共享。

By using the classic calculation method for reactive power compensation, the optimum compensation capacity and compensation position for the network with single power can be easily defined.

通过经典无功优化算法，可以比较简便的计算出在单电源配电网中最佳无功补偿容量和最佳补偿位置。

Computer simulations developed by Sakis Meliopoulos, a member of the Georgia Tech electric power faculty, help determine the most efficient way to ground the electric grid, which provides the only effective way to control damaging current.

由乔治亚科技大学电能系成员Sakis Meliopoulos发明的电脑模拟系统帮助确认建立电网的最佳路径，由此提供了唯一有效的办法来控制有害电流。

To enter the Elephant Sanctuary, you have to pass through a massive gate, part of the thick, cabled fencing that surrounds the perimeter.

进入大象保护区你先要通过一扇阔大的门，那是环绕保护区周围的厚厚的带电网围墙的一部分。

The significance of the peak load dispatching power station in supply of power and peak load dispatching of the electric network was introduced.

介绍了调峰电站在电力供应、电网调峰方面的作用和意义，概述了调峰电站的主要类型以及国内外的应用现状，指出寻找新的蓄能方法的重要性，并列举了目前几种主要的蓄能方

Due to the prodigious proportion of medium and big electronic equipment in power line, the research of three phase reversible converter is becoming the researching hotpot on international and native.

由于中大功率的电力电子设备在电网中占很大的比重，因此高功率因数的三相可逆变流器的研究已成为当今国内外研究的一大热点。

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 calculat...

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。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。