企业党建品牌建设具有积极的现实意义.它可以创新企业党建工作新思路,提高企业党组织的工作动力,并且加强企业生产经营与党建工作的双向促进作用.但是当前企业党建品牌建设工作中存在一些问题.首先品牌建设理念不够深入人心,其次品牌建设工作监督反馈机制不健全,最后缺乏专业的党建品牌建设人员.针对以上问题,本文提出三个工作建议.一是加强党建品牌建设意识,二是加强品牌建设的监督考核,三是提高品牌建设工作人员的知识技能.

This paper presents a brief introduction of the structural properties and basic functions of training of the THPWJB-1 type transformer microcomputer protection examination device and gives an application analysis in actual teaching process. Measures as strengthening practice training and safety awareness training, designing device operation link fault simulation, optimization measures for the improvement of specific training items are proposed so as to overall promote the use of training equipment efficiency and quality of personnel training.

The paper puts forward the simultaneous use of Matlab and Origin software to deal with the difficulties of sinusoidal alternating current waveform figure drawing in the teaching of Circuit and Magnetic Circuit. With the analysis of actual teaching cases, this paper describes the steps of such method. The method is simple, convenient and easy to operate and can enhance students’ interest.

Aiming at the event that after grade C overhaul of unit 2, the units was unable to connect to the grid because of the open phase protection misoperation, this paper introduced the taking place process and trouble shooting process of the event, analyzed the possible cause of the event and raised the making control circuit design of improving the grid connection switches, strengthening the corresponding period checking of the grid connection switches making and breaking and the unblocked examination of hydraulic operating mechanism oil circuits and supplying the regulation of the grid connection switches transmission test management details etc measures to prevent similar accident from taking place.

针对油田矿区服务质量监督制度、方法、措施存在的滞后状况,以现代化先进服务理念为指导,加大服务质量监督力度为对策,通过改进服务监督方法,转变服务作风,提高了矿区整体服务水平的针对性、科学性和实效性.

Unit power factor control is a common kind of control strategies in single-phase active power filter. The strategy was presented in detail and an improved control strategy, namely broad unit power factor control, was proposed according to the shortcoming of unit power factor control which could not ensure sinusoidal source current when the source voltage distorted. Simulation of active power filters based on these two control strategies was completed in Pspice software. Simulation results demonstrate that active power filter based on the improved control strategy can ensure sinusoidal source current no matter whether the source voltage is distorted or not.

Quality is the fundamental element of enterprise's core competitiveness. The product quality of an enterprise reflects the quality of its enterprise quality culture, and its service quality determines its image in the minds of the customers. For the weaknesses of service quality culture construction, it is discussed how to construct the soft environment of service quality culture, the measures for improving an enterprise competitiveness by oilfield service quality culture construction are proposed.

电气开关柜运行中,绝缘材料会受到过电压、高温、化学物质、机械振动等多方面的影响,绝缘性能不断下降,加快了局部放电的速度,反过来局部放电又对绝缘性能的下降起到推动作用。因此检测开关柜的局部放电可以有效预防故障。本文对电气开关柜局部放电故障提也了具体的检测措施与分析技术。

从我国电力系统继电保护技术的整个发展过程看,继电保护技术经历了电磁型、晶体管型、集成电路型、微机型保护四个发展阶段。随着智能电网的出现,继电保护技术在新技术的引领下将向着计算机化、网络化、智能化、保护、控制、测量和数据通信一体化的方向发展。随着电气系统在工作进程中的要求,继电保护在智能电网中的应用开始走向现代化的发展道路。

文章介绍了一种电机设计用工具软件—交流电机的定子成型线圈设计软件.详细分析和阐述了该软件的设计原则、实现过程和设计使用特点.同时,结合某企业的试用情况,直观展示了该软件的实际应用效果.使用实践证明:用该软件来辅助设计交流电机的定子成型线圈,使设计的定子线圈更加直观准确(三维效果),设计的效率及质量明显提高,设计风险大大降低,能解决目前交流电机定子成型线圈从设计到制造过程中存在的部分问题,值得同行借鉴和推广.

Calculation was carried out for main transformer tap terminal selection. Introduction was made to automatic voltage control (AVC) parameters optimization setting. Analysis was made to the impacts on main transformer voltage at each side and generators operation parameters brought by the selection and the setting. Description was made to impacts of such changes on the safety and economical efficiency of generator sets. Site test verifies the correctness of calculation and analysis.

横向磁场永磁电机因其高转矩密度和高效率的优点,吸引各国电机设计人员们对其结构设计、制造工艺、磁场分析及运行性能等方面展开了具体研究。在查阅现有的国内外相关文献资料的基础上,系统介绍了横向磁场永磁电机的主要拓扑结构的特点,分析了当前国内外横向磁场电机的主要研究方向,最后对其应用前景进行了展望。

Aiming at a case that differential protection of main transformer microcomputer falsely operated because of current transformer's line breaking off,this paper analyzed second current changes after current transformer's line breaking off according to fault site surveillance,fault wave recording diagram and second current calculation after fault etc aspects and summarized the causes of current transformer's line breaking off locking failure.Combining with actual operation experience,this paper raised that it is better to adopt non-locking differential protection plan when the judgment is not clear.

文章介绍了一种电机设计用工具软件一交流电机的定子成型线圈设计软件。详细分析和阐述了谊软件的设计原则、实现过程和设计使用特点。同时，结合某企业的试用情况，直观展示了该软件的实际应用效果。使用实践证明：用该软件来辅助设计交流电机的定子成型线圈，使设计的定子线圈更加直观准确（三维效果），设计的效率及质量明显提高，设计风险大大降低，能解决目前交流电机定子成型线圈从设计到制造过程中存在的部分问题，值得同行借鉴和推广。

<正>1案例经过2010年10月,某水电站按工作计划对其2号机组进行了小修。小修顺利完成后,机组准备并网,当同期电压和同期装置投入之后,在同期装置寻找同期点的过程中,同期闭锁告警一直存在,导致机组无法并网。经现场检查发现:在机组同期过程中由同期装置检测到的发电机电压和系统电压发生等幅值跳动变化的现象,该幅值变化范围是最大55

In order to improve the service level and enhance service assurance capability in oilfield,using customer satisfaction replaces customer satisfaction ratio for evaluating the service quality of the field service department.The service quality of the field service departments in property service,medical service and public traffic service is comprehensively improved by revising and perfecting service standards and establishing incentive mechanism,and thus the standardized and scientific services are gradually realized.

电力系统继电保护及自动装置是我院发电厂及电气设备、供用电技术和电力系统继电保护专业的主干专业课程,是一门理论性和实践性并重的课程。近二十多年来,继电保护技术发生了巨大的变化,对高职教育中电力系统继电保护及自动装置课程教学提出了更高、更新的要求。

继电保护是电气工程系电气类专业的主要专业课程,而高职高专教学应以培养高技能型人才为目标,所以继电保护的实验教学应是继电保护课程不可或缺的重要环节。如何解决理论教学和生产现场运行相脱节的问题,则是继电保护实验教学工作的重点。而继电保护实验室的建设好坏则是继电保护实验教学工作的重要保障。通过对重庆水利电力职业技术学院当前继电保护实验室存在的问题分析,提出了建设继电保护专业实验室的一些思路和方法。

<正>随着我国社会经济的持续稳定发展及扩大内需政策的实施,供电行业的投资数额近年来大幅度增长。怎样发挥供电行业党组织的政治核心作用,如何健全完善职务犯

On the basis of the performance characteristics analysis of current and voltage protections,the mechanism and constitutive principles in chain-speed current and voltage fault protection are discussed.According to practical experience in engineering practice,the authors makes detailed description of the several practical methods for setting calculation in applying the protections to practice.