北京供电公司的“三电管理信息系统”

“三电管理”是我国特有的用电管理方式,其特点是,信息量大,数据繁杂。为适应现代化电网需要现代化管理的要求,北京供电公司设计了“三电管理信息系统”。本文介绍了该系统的结构、功能和特点。     

邯钢新板坯控制系统实施方案

结合邯钢三炼钢连铸实际生产情况,对大板坯建设的"三电"设备,采用先进、可靠的技术和装备,保证"三电"控制水平,为大板坯稳产高产热装热送提供可靠优良的设备保障。     

建设电类专业立体化“三电”教学体系的思考与实践

“电工技术”、“电子技术”和“电机学”（简称“三电”）是电类专业的技术基础课。加强“三电”基础教学体系改革是培养电类高素质人才的关键,也是建设创新型国家的重要环节。从“三电”课程教学的地位与作用、建设教学体系的原则与方案、现阶段的建设重点与实现途径等方面论述了工科大学建设立体化“三电”教学体系的思考与实践。     

以学科竞赛为导向的应用型本科“三电”教学模式改革

“电路分析基础”“数字电子技术”“模拟电子技术”即“三电”是电气类专业的基础课,而目前在教学中普遍采用传统的教学模式,过于注重理论讲授,课时较多,很多内容无法做到理论联系实际,使学生在“三电”课程的学习过程中不能很好地掌握课程真正的内容。另外“三电”课程开设的实验基本上以验证定理为主,实验过程依然采用“预习-讲解-操作-报告”的常规教学模式,这种模式虽然培养了学生良好的习惯,但同时限制了学生工程实践应用能力的提高、创新能力的培养。     

“三电题材文学作品大赛”启事

“三电题材文学作品大赛”启事为讴歌能源事业飞跃发展的大好形势，颂扬当代节能工作者的崭新风貌，增强全民节电意识，繁荣“三电题材”文学创作，《现代节能》杂志、《湖南电力报》联台举办“三电题材文学作品大赛”。具体事项如下：一、参赛对象及作品凡有志三电题材文...     

360MW机组电动泵改汽动泵经济性分析

进行“电改汽”改造是降低电动泵机组煤耗的常用办法,而热力性能试验则是评价“电改汽”前后机组经济性最直接和行之有效的方法.通过对进口360 MW机组“电改汽”改造后其热力性能试验结果的研究和经济性的对比分析,介绍了“电改汽”改造对汽轮机热耗率、厂用电率、发电煤耗、供电煤耗的影响,并对机组改造后的经济性进行评价.     

防“晃电”措施在制氧厂中的应用

通过介绍某制氧厂应对系统“晃电”实施的一些措施,探讨防“晃电”技术.     

辽宁:数智电力促发展

三年可以做什么?在辽宁,全面振兴新突破三年行动正全力实施。大力推进“数字辽宁、智造强省”建设,辽宁正努力走出一条高质量发展、可持续振兴的新路子。同样是三年,国网辽宁省电力有限公司也在奋力打造“卓越辽电三年工程”,将在2025年初步建成“智慧电网、数字辽电”。     

中国列电:新中国建设开路先锋

在经济社会发展中,电力被誉为“先行官”;在先行的电力行业中,列电又被誉为“电力尖兵”。您想了解列电吗?这里给您介绍一部有关列电的“百科全书”一一《列电志略》。     

技术创新提升产品竞争力——方太新"银家三系"厨电系列创新技术概述

近日，方太新“银家三系”厨电系列正式发布上市。新“银家三系”的现身，让人们感受到原来厨电套餐不仅可以实现外观的和谐搭配，更可以实现功能的整合与互动。     

History of the Electrical Insulation Conference

This Electrical Insulation Conference (EIC) history gives a wide-ranging documentation of the EIC, from its inception in 1958 to the present. The EIC's inception was driven by advances in polymer technology. The EIC awards are outlined as is co-sponsorship of the conference.     

EIC volunteer profile

John has been active with the Electrical Insulation Conference (EIC) since 1995, when he attended his first EEIC/EMCW Expo in Chicago. At the time, he was an industry manager for the National Electrical Manufacturers Association (NEMA) and its Insulating Materials Section. In 1996, John began working directly with EIC volunteers as he assumed the position of Secretary/Treasurer to the EIC Board of Governors, a position he still holds. As the Secretary/Treasurer, he has been responsible for recording all of the meeting minutes of the EIC Board of Governors (1996?present) and EIC/EMCWA Joint Management Committee (1996?2007). He also holds the position of Treasurer of the EIC Board.     

History of the electrical insulation conference

The Electrical Insulation Conference (EIC) Was organized in 1958. Four conferences were held before the establishment of the IEEE. Starting with the fifth conference in 1963, IEEE became a co-sponsor for this conference. The history of the various awards and recognitions sponsored by the EIC are listed. Efforts at expanding the scope of the technical activities and the interactions with related groups are discussed.     

EIC Volunteer Profile [Stefano Bomben]

Provides a biography of Stefano Bomben, a volunteer with the Electrical Insulation Conference (EIC).     

EIC NEWS [including EIC volunteer profile]

This article profiles EIC volunteer Dr. Howard W. Penrose, President and owner of SUCCESS by DESIGN.     

空气预热器监测分析系统设计及试验研究

以EIC数采系统及LabVIEW软件为基础,设计开发了空气预热器监测分析系统,并将该系统应用于600MW机组回转式空气预热器性能试验。试验结果表明,空气预热器监测分析系统具有应用价值,对试验结果有指导意义。     

Modelling of a circular Fresnel zone plate lens for electromagnetic wave antenna application

The application of Fresnel lenses is often made to the receiving antennas for television and radio by way of the satellite communication, for the astronomical observation and so on. Their advantage lies in structural simplicity and low cost. A typical Fresnel zone plate lens (FZPL) consists of coaxial conductive ring bands separately placed over the surface of a dielectric plate. For the antenna application a receiving horn is provided at the focal point. In our previous work, the experiment was carried out for this arrangement, where the horn aperture is larger than the wavelength. Comparison was made with the solution of the Kirchhoff's scalar formula with reasonable agreement (Trans EIC Japan 1998; J‐81‐B‐II (8):823–828; Trans EIC Japan 1996; J‐79‐B‐II (11):959–963). The present work is to validate the numerical treatment. The method of moment and the theory of the physical optics are here considered with three‐dimensional vectorial formulation. The focal characteristic is obtained not only for the normal incidence but also for the slightly oblique incidence. Copyright © 2005 John Wiley & Sons, Ltd.     

考虑接触摩擦特性的混凝土面板温度应力仿真分析

本文考虑面板与垫层之间的接触摩擦特性，应用笔者此前建立的温度场与温度应力的接触摩擦单元计算模型，进行了混凝土面板温度场与温度应力的仿真分析，获得了施工期及运行期面板温度场与温度应力的变化及分布规律。通过与面板温度实测结果的对比，证明所获得的面板温度的变化规律是基本符合实际的，也进一步证明上述接触摩擦单元计算模型是合理的。     

水垫塘透水底板上举力试验研究

基于模型试验,本文研究了水垫塘透水底板的水动力特性。结果表明,与不透水底板相比,透水底板可以显著地减小上举力,从而可以提高底板的稳定性。文中阐述的开孔率k、孔径D等对水动力荷载影响的成果,可为水垫塘透水底板的设计提供参考。     

堆石坝面板收缩性贯穿裂缝的理论分析及防裂措施

堆石坝面板的裂缝主要源于因温降和干缩引起的收缩。当面板的收缩变形受到约束后会产生拉应力而导致裂缝。本文推导了面板收缩后受堆石体及侧面先浇块约束时沿断面拉应力分布的解析解，求出最大拉应力断面位置及应力值与底面及侧面约束的关系。数值结果表明，面板与堆石体之间的凝聚力及先浇块的侧面约束是引起裂缝的重要因素。根据本文的理论分析提出了无贯穿性收缩裂缝的设计准则及相应的工程措施。