Testing and Evaluation of Insulating Films Part II: Test Results Using Facilities at the University at Buffalo

In this second part of a two-part article, representative data using the insulation test facilities at the University at Buffalo is presented. It is also shown how this data is useful toward the design of reliable high voltage systems.     

国内外电动汽车充电设施发展状况研究

电动汽车是未来我国发展前景广阔的一种交通工具,电动汽车充电站为电动汽车运行提供能源补给,是发展电动汽车所必须的重要配套基础设施。比较了电动汽车几种充电方式的特点,介绍了国内外电动汽车充电设施的发展状况,对未来我国电动汽车充电的商业模式及发展前景进行了初步研究,提出积极推动电动汽车充电设施建设应是电网企业义不容辞的责任。     

The New Electromechanics Laboratory at Stanford

This paper describes the new electromechanics laboratory facilities at Stanford and the philosophy governing the teaching approach to the laboratory course. A typical experiment is described to illustrate how a relatively simple electromechanical device can be used to maximize student learning in the laboratory.     

Providing security for automated process control systems at hydropower engineering facilities

This article suggests the concept of a cyberphysical system to manage computer security of automated process control systems at hydropower engineering facilities. According to the authors, this system consists of a set of information processing tools and computer-controlled physical devices. Examples of cyber attacks on power engineering facilities are provided, and a strategy of improving cybersecurity of hydropower engineering systems is suggested. The architecture of the multilevel protection of the automated process control system (APCS) of power engineering facilities is given, including security systems, control systems, access control, encryption, secure virtual private network of subsystems for monitoring and analysis of security events. The distinctive aspect of the approach is consideration of interrelations and cyber threats, arising when SCADA is integrated with the unified enterprise information system.     

防爆通信设备在钢铁企业使用中应注意的问题

为确保防爆通信设备在钢铁企业中使用的安全性,提出了使用中普遍存在的影响安全的诸多因素,并论述了防爆通信设备在选型及使用中应注意的问题.     

Singapore,BP first to provide H2 at existing fueling station

BP has added fueling facilities to provide hydrogen on a trial basis at one of its Singapore retail filling stations, becoming the world's first to supply the ‘green’ fuel alongside conventional fuels at an existing retail site.     

Canadian national power quality survey: frequency and duration ofvoltage sags and surges at industrial sites

The occurrence of voltage sags and surges originating on the primary and secondary sides of industrial facilities can disrupt continuous and noncontinuous industrial computer processes, a costly issue for society. This paper attempts to answer several questions concerning the frequency and duration of voltage sags and surges posed by industrial customers. The answers to these questions are based on the national survey results of the frequency and duration of voltage sags and surges at industrial sites monitored at their utilization voltage levels (e.g. 120, 347 V) and on the utility primary side of their facilities. The survey results provide a knowledge base for monitoring, designing, and utilizing voltage sag and surge mitigating technologies     

Graduate Training in Optics at the Optical Sciences Center

The graduate programs in Optical Sciences at the University of Arizona are discussed. Included are requirements for admission to the M.S. and Ph.D. programs, the degree requirements for each of these programs, the Optical Sciences Faculty, and the research and teaching facilities of the Optical Sciences Center. Also presented are estimates of starting salaries and employment distribution of Optical Sciences graduates.     

Matters concerned with designing distributed systems for automated control of electrical equipment at power stations

Matters concerned with developing the working designs of systems for automated control of electrical equipment are discussed. Basic technical requirements for computerized automation facilities are formulated from the viewpoint of ensuring the required scope of functions and fault tolerance, and proposals for the layout and placement of these facilities are suggested. A special section devoted to protection of automated process control systems from computer viruses is given.     

Predicting the service life of power equipment at ageing power stations

A physicomathematical model describing the development of flaws in the equipment of ageing power stations is developed, and examples of its verification against the data from monitoring of some facilities are presented.     

Improving the operation of chemical process systems at thermal power stations using computerized education facilities

The list and characteristics of computerized systems used for carrying out basic training of the operating personnel of chemical departments are presented. The results from contests of professional skills carried out among comprehensive teams of thermal power stations with participation of the operating personnel of chemical departments are analyzed. The result obtained from using software facilities for improving the operation of chemical process systems at thermal power stations is discussed.     

Experience gained with development of the instrumentation and control system for the PGU-410 power unit at the Krasnodar cogeneration station on the basis of the tornado-n distributed control system

The development of the instrumentation and control system for the PGU-410 power unit at the Krasnodar cogeneration station is discussed. Problems encountered in designing the process control system of a complex facility are considered, in particular, the need to integrate local control systems. Special attention is paid to the importance of setting up a united control area at such facilities.     

Improved Inspection of Facilities for High‐Voltage Class Using Data Mining

The inspection of power supply facilities can now be conducted with high accuracy using remote monitoring technology. In contrast, it is difficult to install sensors at demand facilities because their scale and installation environment differ among customers. As a result, the demand facilities are inspected at fixed time intervals. In this paper, we propose condition‐based maintenance (CBM), which improves maintenance quality at demand facilities. The proposed method was developed using maintenance data from demand facilities, collected using time‐based maintenance, and we conduct the analysis primarily using failure data. We use data mining to analyze transaction data that we modeled on the basis of the maintenance data and to construct a “failure predictive model” that can predict the failure of facilities and its causes from the results of the analysis. By using the constructed model, we will be able to identify the objects requiring maintenance which may most likely lead to failures in the future, and this study can contribute to improvement of maintenance technologies for demand facilities using the proposed CBM.     

Early general radio microwave equipment at the National Electronics Museum [Reverberations]

General Radio (GR) was founded in 1915 with the immediate purpose of manufacturing measuring equipment for use at radio frequencies (RFs). Some of their early standard capacitors found their way into experimental radio equipment built by Edwin H. Armstrong. After the World War I, much of the company's product line was driven by the new radio broadcasting phenomenon. For a short time, the company produced components for use in radio equipment, but, eventually, their main effort went back to producing radio test equipment. The company was first located in Cambridge, Massachusetts, at Massachusetts Avenue and Windsor Street. It maintained facilities at that location until 1958, when operations were moved to Concord.     

Continuing Education at Western Electric's Corporate Education Center

The Western Electric Corporate Education Center is a tangible manifestation of the company's long-term commitment to continuing education for its technical-professional, supervisory, and upper management employees. Educational programs which have evolved over a period of years now provide post-graduate schooling to accelerate the development of new employees, to maintain and expand the expertise of experienced employees, and to help supervisory employees cope with enlarged areas of responsibility. The three principal areas of study involved are engineering, computer science and information systems, and business management, with roughly equal emphasis in each of the three areas. Teaching load is shared about equally between experienced company employees, and local-area college faculty and specialized consultants. Some 5800 employees annually attend courses in modern, campuslike facilities which accommodate up to 300 resident students at a time.     

Reliability and safety of thermal power stations in Russia at the present stage: problems and future objectives

Matters of ensuring reliable and safe operation of power-generating equipment are briefly analyzed, and the main objectives thermal power engineering faces in this respect are formulated. The fundamental aspects that must be taken into account in extending the service life of the main heat-generating and mechanical equipment at thermal power stations are outlined. Selection of new advanced materials for the manufacture of equipment in retrofitting existing and constructing new power facilities is discussed. Proposals on supporting and improving the set of regulatory documents for diagnosing power-generating equipment and extending its service life are given.     

基于分区需求系数的电动汽车充电设施规划

电动汽车充电设施的合理规划对于电动汽车的推广具有重要作用。为此, 提出了一种基于分区充电需求系数的电动汽车充电设施选址定容方法。首先基于对各类电动汽车充电模式分析, 提出了电动汽车负荷预测模型。接着由各类电动汽车的日能量需求及日最大接入数量, 计算出各类电动汽车充电设施的需求数量。之后, 对所需研究的规划区域进行区块划分, 确定各区块的充电需求系数, 并选出充电需求较高的区块, 再根据所得到的候选布点区块及充电桩总数来确定每个区块的充电桩数量。最后, 以杭州市充电设施规划为例来说明所提方法的基本特征。     

Reliability Analyses of Transmission and Substation Facilities and Electricity Supply to Urban Consumers in 2007

Renabilities of transmission and substation facilities with voltaelevel of 220kV or above In 2007,there were totally 356 power supply enterprises,including 28 EHV transmission and substation enterprises,and 245 power generation enterprises submitting reliability performances of electric facilities at a voltage level of 220 kV or above to the Electric Power Reliability Management Center.The reliability indices of transmission and substation facilities in 2007 and 2006 are shown in Table 1.     

The Advent of Electrical Engineering at Rensselaer: 1900-1940

The course in electrical engineering began in 1907, 83 years after the founding of the Institute. The adding of two new courses that year laid the foundation for the true polytechnic envisioned by the early leaders of the Institute. A large gift from the widow of Russell Sage provided the financial support for the expansion in facilities and programs. The curriculum established was in the Rensselaer tradition in that it was conservative but responsive to changes in technology and the demand for engineers.     

Modernizing the heat load control system of a once-through boiler unit at a thermal power station using a dynamic corrector

Operation of the heat load control system of the once-through boiler of a 300-MW power unit in maneuverable modes of its operation is considered. A new functional structure of the algorithm for controlling inertial thermal power facilities is proposed. The controlled plant model is identified from experimental data, and the stability of the closed-loop control system is estimated in the working range of load is estimated. The results of simulation and tests carried out on Unit 2 at the Tripol??e thermal power station have shown that better quality of control processes in response to external and internal disturbances is achieved through the use of a dynamic corrector.