抗菌玻璃技术及应用

本文对抗菌玻璃的种类、原理及特点进行了详细的论述,重点介绍了一种全新的材料——镀膜抗菌玻璃,并对其工艺原理、技术特点、功能特性、综合指标等进行了综合评价。对溶胶-凝胶（sol-gel）工艺特点进行了解析。介绍了一系列镀膜抗菌玻璃应用于医疗卫生、家电、日用品等领域的案例,并对其应用效果进行了的综合评价。     

抗菌玻璃技术及应用

本文对抗菌玻璃的种类、原理及特点进行了详细的论述,重点介绍了一种全新的材料——镀膜抗菌玻璃,并对其工艺原理、技术特点、功能特性、综合指标等进行了综合评价。对溶胶-凝胶(sol-gel)工艺特点进行了解析。介绍了一系列镀膜抗菌玻璃应用于医疗卫生、家电、日用品等领域的案例,并对其应用效果进行了的综合评价。     

真空开关关键技术及发展趋势的分析

对真空开关的操动机构进行了论述,对影响真空灭弧室绝缘性能和灭弧能力的触头材料、触头结构、波纹管及屏蔽罩四大因素进行了具体分析,并对真空开关的发展进行了展望。     

变压器温度监测方法及常见故障浅析

对变压器温度监测方法进行了介绍,对遇到的故障进行了分析并提出了改进方法.     

银铜接触线的性能试验及比较

本文对试制的银铜接触线进行了性能试验并对试验结果进行了统计处理，对国内外银铜接触线的标准要求及产品性能进行了比较。     

华中地区电网事故分析及对策

对2001—2003年间原华中电网发生的一般电网事故情况进行了概述,对该期间华中电网的一般电网事故进行了综合分析,同时对遏制和减少电网事故提出了对策与建议。     

地铁及轻轨车站防雷和接地系统分析及探讨

文章对地铁及轻轨车站的防雷和接地系统进行了分析,并就外引接地极绝缘引入、金属屋面防雷和接地连接点间距等有关问题进行了探讨,提出了更加合理的解决方案,消除了工程技术人员的疑虑。     

输电线路鸟害故障分析及防范措施

总结了包头供电局近10 a来输电线路的鸟粪闪络情况,对鸟粪闪络机理及闪络条件进行了分析,并对防止鸟粪闪络的措施进行了探讨。     

交互式电子白板的应用优势及思考

新课程标准要求对教学目标进行重新定位、对教学内容进行改革、对学习过程进行变革,尤其是对自主学习和研究性学习提出了较高的要求。课堂教学活动必须是互动的,这无疑对传统的课堂教学模式提出了改革的迫切要求。     

污水处理及回用试验研究

对沧州市城市污水的处理和回收利用进行了试验研究,提出了一套较为合理的处理工艺和运行方式,并对其回用于火力发电厂循环水系统的可行性进行了评价,为城市污水的再利用提供参考。     

浅议蓄电池选购、验收、使用和维护

本文从蓄电池的选购、验收、使用和维护的角度对提高蓄电池系统安全进行探讨。     

Conventional and recommended arc power and energy calculations and arc damage assessment

The costs associated with fires initiated by arcing faults depend on the extent of the damage. In some cases, costs have exceeded $100 000 000. The personal losses associated with a serious injury or fatality are incalculable. When an arcing fault occurs, qualified in-house personnel and/or professional consultants try to determine the factors involved in the fault's initiation. Investigators also serve as expert witnesses in any pending lawsuits related to the accident. In fact, the growing interest in accident investigation has led to the establishment of an IEEE workgroup in forensics. Even with sophisticated techniques like scanning electron microscopes used to provide magnified photographs of arc damage, only a limited amount of applicable technical information on arcing faults exists for reference. Much of the engineering reference information on calculating arc currents and assessing arc damage is 25-50 years old. Recent papers by the authors discussed calculating arc currents. This paper presents a method to determine the power released by a single-phase-to-ground arc and provides graphs for quick reference. Commonly used methods for calculating arc power and energy and quantifying damage are also discussed. The recommended and conventional methods are used to determine arc energy and to identify the damage threshold in a typical system and the results are compared.     

现代电力与FACTS＆DFACTS技术

现代社会正在进入以信息技术为先导的知识经济时代,要求作为信息基础的电力供应具有高可靠性和高动态品质。文章对现代的电能质量问题及其危害性进行了分析。在介绍国内电能质量控制技术研究发展现状的同时着重指出柔性交流输电（flexible AC transmission system,FACTS）及配电系统柔性交流输电（distribution flexible AC transmission system,DFACTS）技术是提高现代电图供应可靠性和动态品质的重要途径。文中还根据我国电力供求两方面的现状指出改善电能质量是一项系统工程并具有迫切性。     

变频器与PLC的连接与配合使用

分析了变频器和PLC的配合使用的连接方法,提出了设计安装使用时的注意事项,给出了抗干扰的一些方法。     

德、法两国报刊、图书出版业考察有感

阐述了德、法两国报刊、图书出版业的发展趋势和概况,通过对欧洲书展和法、中文化交流活动的介绍,分析了德、法两国报刊、图书出版业的特点。结合宁夏的实际情况,借鉴国外先进经验,提出了本地区电力行业科技期刊的发展模式及思考。     

谐波及其危害与治理

从谐波的基本概念开始,阐述了谐波基本指标,谐波的危害、谐波的限制措施、谐波测量以及谐波治理等方面的知识并作了具体的分析。     

Present and Future Trends and Needs in Electric Power Quality Sensors and Instrumentation

Sensors and instrumentation systems form an important part of power quality assessment and preservation. In this paper, the present and future trends in power quality instrumentation are discussed and the present capabilities are identified (e.g., bandwidth, dynamic range, quantities measured). Innovative methods of instrumenting nonsinusoidal voltages and currents are described, including applications of the Global Positioning System (GPS), solid state sensors, sensors that involve light and video, advanced data compression techniques, and advanced state estimation. The cost-to-benefit ratio of sensor development is evaluated in the context of the deregulated electric utility business environment.     

SF6断路器巡视维护及常见故障原因分析与处理

SF6断路器是电力系统中的一个重要设备。在110kV及以上电压等级中,最常用的开断电器是SF6断路器。介绍了其特点,总结了正常巡视检查定期维护的方法,分析了产生故障的原因,并提出了在出现常见故障时采取的措施,为电网运行管理部门预防该类事故提供参考,从而确保安全优质持续供电。     

Generator protection and CT-saturation problems and solutions

This paper presents a new generator relay design, stator differential function in particular, coping with extreme cases of current transformer (CT) saturation: both ac saturation under large currents and/or residual flux; and dc saturation under low currents but large and long-lasting dc components. The algorithm is a subcycle algorithm with fastest times reaching half a cycle including overall response of the relay hardware. Analysis of the response of a traditional differential function under CT saturation is included to provide setting guidelines for legacy relays.     

Tracing active and reactive power between generators and loadsusing real and imaginary currents

In a competitive environment, usage allocation questions must be answered clearly and unequivocally. To help answer such questions, this paper proposes a method for determining how much of the active and reactive power output of each generator is contributed by each load. This method takes as its starting point a solved power flow solution. All power injections are translated into real and imaginary currents to avoid the problems arising from the nonlinear coupling between active and reactive power flows caused by losses. The method then traces these currents to determine how much current each source supplies to each sink. These current contributions can then be translated into contributions to the active and reactive power output of the generators. It is also shown that the global contribution of a load can be decomposed into contributions from its active and reactive parts. This decomposition is reasonably accurate for the reactive power generation. To determine the contributions to active power generation, the previously-described method based on the active power flows is recommended