电气工程的专业英语

第一篇：电气工程的专业英语

水文地质与工程地质常见的专业英语词汇

(勘察报告类)

水文地质类

孔隙水：pore water

裂隙水：crevice-water;fracture water 抽水试验：pumping test 压水试验：water pressure testHydraulic pressure test 注水试验：water injection test 渗透系数：coefficient of permeability 包气带：zone of aeration 上层滞水：perched water 潜水：phreatic water

承压水：confined water 含水层：aquifer

地下水侵蚀性：groundwater erosion

降排水工程：dewatering and drainage engineering 多孔介质：porous medium

水质标准：water quality standard

地下水水质：quality of the groundwater 流域：valley, basin

地下水 groundwater

地下水流域groundwater catchment

地下水条件;地下水情况groundwater condition地下水连通实验 groundwater connectivity test地下水量枯竭 groundwater depletion

地下水流量;地下水溢流 groundwater discharge地下水分水岭groundwater divide

地下水排水工程 groundwater drainage works地下水流向groundwater flow direction地下水位 groundwater level

地下水监测 groundwater monitoring地下水污染 groundwater pollution

岩土参数标准值：standard value ofgeotechnical parameter

土工试验：soil engineering tests 现场检验：in-situ inspection 现场监测：in-situ monitoring

工程地质测绘：engineering geological mapping 地基土：foundation soil

岩土层：layer，stratum (复strata)

地基承载力特征值：characteristic value ofsubgrade bearing

地基变形允许值：allowable subsoil deformation 地基处理：ground treatment 复合地基：composite foundation 承载力：bearing capacity 持力层：bearing stratum 桩：pile

承台：pilecap

钻孔灌注桩：drilled concreting piles 人工挖孔桩：hand-excavated hole piles(artificial hole piles)

沉管灌注桩：driven cast-in-place pile 深层搅拌桩: deep mixing method

预制桩：pretesting piles

静压桩：static-driving pile (Jack Up Pile) 高压旋喷灌注：high-pressure rotary grouting 桩基础：pile foundation

桩—土—承台：pile-soil-pilecap

动力触探：dynamic sounding

标准贯入试验：SPT (standard penetration technique)土钉：soil Nailing

地质灾害：geological hazards 管涌：piping

泥石流：mud-rock flow

滑坡：landslide

指标：index (复indexes或indices)

地下水水压测试 groundwater pressure measurement地裂缝：ground fissure 地下水体系 groundwater regime地下水位 groundwater table

地下水位变动 groundwater table fluctuation

工程地质类

原位测试：in-situ tests 地震烈度：seismic intensity; earthquake intensity 岩土工程勘察报告：geotechnical investigation report 地震基本烈度：basic seismic intensity 不良地质作用：adverse geologic action 场地卓越周期：site predominant period

建筑场地类型：site classification for construction 剪切波速：equivalent velocity of shear wave 静力触探：static cone penetration test

剪切波速测试：measurement of sheer-wave velocity 液化：liquefaction

阐述：is presented; statement; be discussed 阐明：expound 涉及：deal with

揭示：discover; show; exhibit

得出结论：draw a conclusion from;

地震影响：earthquake effects(或)：come to a conclusion地下水对混凝土无侵蚀性：the groundwater has little 认为：firmly believe erosion to reinforced concrete 边坡：slope 锚固：anchoring 阶地：terrace 岩溶区：karst area 淤泥：sludge (muck) 风化：weather 冲积：alluvial(.adj.) 残积土：residual soil

填土：fill

人工杂填土：artificial mixed fills 粉土：silt. 粉砂：silty sand 细砂：fine sand 粗砂：coarse sand 砾石：gravel 卵石：cobble 漂石：block

海相粘土：marine clay

颗粒级配：grain size distribution 湿度：soil moisture 塑限：plastic limit 粘聚力：cohesion

塑性指数：plasticity index

物理力学指标：physical and mechanical indices 抗剪强度：shear strength

岩石抗压强度：comprehensive strength of rock 地基加固：ground stabilization 土壤加固：soil stabilization 挡土墙：retaining wall 胀-缩：swell-shrink 敏感性：susceptibility

膨胀灵敏度：swell sensitivity 超固结土：overconsolidated clay

翻译常用英语单词

建议：suggest 值：value

性质：properties, characteristics 厚度：thickness

在论文最后：at the end of the thesis 断定：conclude that--- 数量：quantity

确定：determine

拟建：a structure planning to build证实：confirm 住宅楼：dwelling

综合办公楼：composite office building 小区：district

达到标准：come up to the standards 选择为：be chosen for 核实：make sure 统计：statistics (n)

统计数字：statistical figure

防治对策：prevention strategic measure 水量丰富：rich in water resources 组分：constituent

结果：as a consequence 引起：give rise to

地质类词汇

岩浆岩：igneous rock

变质岩：metamorphic rock 沉积岩：sedimentary 白云岩：dolomite

白云质灰岩：dolomitic limestone 凝灰岩：tuff 安山岩：andesite 花岗岩：granite 玄武岩：basalt

泥岩：mudstone

硅质页岩：siliceous shale 板岩：slate

(岩层)走向：strike

(岩层)倾角：dip angle (岩层)产状：strike-dip

(区域)地质构造：tectogenesistectonic movement 构造活动性：tectonic activity 张节理：tension joint 活断层：active fault 地裂缝：ground fissure 粘土矿物：clay mineral

中 华 人 民 共 和 国 国 家 标 准GB/T 14157—93

水文地质术语 Hydrogeologic terminology

路桥基勘察：

墩：pier

桥墩：reinforced concrete bridge piers 高速公路：express highway，expressway 国道：national way 路基：roadbed

路线：route

路段：a section of a highway

水文地质学 hydrogeology

水文地质学原理(普通水文地质学)principles of hydrogeology(general hydrogeology) 地下水动力学 groundwater dynamics 水文地球化学 hydrogeochemistry

专门水文地质学 applied hydrogeology 供水水文地质学 water supply hydrogeology 矿床水文地质学 mine hydrogeology

土壤改良水文地质学 reclamation hydrogeology 环境水文地质学 environmental hydrogeology 同位素水文地质学 isotopic hydrogeology 区域水文地质学 regional hydrogeology 古水文地质学 pa1eohydrogeology 水循环 water cycle水圈 hydrosphere 岩石圈 lithosphere 包气带 aeration zone 毛细带 capillary zone 饱水带 saturated zone

地下水动力垂直分带 dynamical vertical zoning of groundwater 大气降水 atmospheric precipitation 地表水 surface water 土壤水 soil water 空隙 void

第二篇：专业英语13章 电气工程 英语翻译

12.3 Grounding of Electrical Systems

In general, most electrical systems must be grounded. The purpose

Fig. 12.4 Secondary high-voltage radial distribution system

of grounding is to limit the magnitude of voltage caused by lighting, momentary surges, and accidental contact with higher voltages. System grounds must be seaweed to provide a path of minimum impedance in order to ensure the operation of over-current devices when a ground fault occurs. Current should not flow through the grounding conductor during normal operation.

Direct-current systems generally have the grounding conductor connected to the system at the supply station, and not at the individual service. Alternating-current systems, on the ether hand, must be grounded on die supply side of the main disconnect al each individual service. For specific information an the location and methyl of funding, refer to NEC Article 250.

(a) Secondary high-voltage distribution system; high-voltage radical. low-voltage loop

(b) Consumer distribution system with high-voltage and low-voltage loops Fig.12.5

12.4 Grounding of Electrical Equipment

Metal conduit and cases which enclose electrical conductors must be grounded. If the ungrounded (hot) conductor comes in contact with a metal enclosure which is not grounded, a voltage will be present between the enclosure and the ground. This presents a potential hazard. Persona comic in contact with the enclosure and ground will complete a circuit.

All non-current-carrying metal parts of electrical installations should be tightly bonded together and connected to a grounding electrode. Good electrical continuity should be ensured through all metal enclosures. The current caused by accidental grounds will be conducted through the enclosures, the grounding conductor, and the grounding electrode to the earth. If the current is false enough, it mill cause the over-current device to open.

12.5 Ground Fault Protection

A ground-fault protector (GFP) is a device which senses ground faults and opens the circuit when the currant to ground reaches a predetermined value. A ground-fault circuit interrupter (GFCI) is a device which opens the circuit when very small currents flow to ground. There is no way to determine in advance the impedance of an accidental ground. Most circuits are protected by 15 A(ampere) or larger over-current devices. If the impedance of a ground fault is low enough, such devices will open the circuit. What about currents of less than 15 A? It has been proven that currents as small as 50 mA through the heart, lungs, or brain can be fatal. Electrical equipment exposed to moisture or vibration may develop high-impedance grounds. Arcing between a conductor and the frame of equipment may cause a fire, yet the current may be less than 1 ampere.

Leakage current caused by dirt and /or moisture may take place between the conductor and the frame. Portable tools are frequently not properly grounded. and the only path to ground is through the body of the operator.

The ground-fault circuit interrupter was developed to provide protection against ground-fault currents of less

than 15 A. the GFCI is designed to operate on two-wire circuits in which one of the two wires is grounded. The

standard circuit voltages are 120 V and 277 V. The time it takes operate depends upon the value of the ground-fault current. Small currents of 20 mA or less may flow for up to 5 s before the circuit is opened. A current of 20 mA will cause the GECI to operate in less than 0.04 s. This time/current element provides a sufficient margin of safety without nuisance tripping.

The GFCI operates on the principle that an equal amount of current is flowing though the two wires. When a ground fault occurs, same of the currant flowing through the ungrounded (hot) wire does not flow through the grounded wire; it completes the circuit though the accidental ground. The GFCI senses the difference in the value of current between the two wires and opens the circuit. GFCIs may be incorporated into circuit breakers installed in the line, or incorporated into a receptacle outlet or equipment. Ground-fault protectors are generally designed for use with commercial and/or industrial installations. They provide protection against ground-fault currents from 2 A (special types go as low as 50 mA) up to 2 000 A. GFPs are generally installed on the main, submain, and/or feeder conductors. GFCls are installed in the branch circuits. GFPs are generally used for three-wire, single-phase and for three-phase installations, while GECls are used for two-wire, single-phase circuits.

A ground-fault protector installed on supply conductors must enclose all the circuit conductors, including the neutral, if present. When operating under normal conditions, all the current to end from the load flows through the circuit conductors. The algebraic sum of the flux produced by these currents is zero. When a phase-to-ground fault occurs, the fault currents returns through the grounding conductor. Under this condition an alternating flux is produced within the sensing device. When the flux current reaches a predetermined value, the magnetic flux causes a relay to actuate a circuit breaker.

Sometimes the GFP is installed on the grounding conductor of the system. Under this condition, the unit senses the amount of phase-to-ground current flowing in the grounding conductor. When the current exceeds the setting of the GFP, it will cause the circuit breaker to open.

The ground-fault protector is actually a specially designed current transformer connected to a solid-state relay.

12. Three-Phase Systems

The various three-phase systems in normal use will lie described. Under ideal conditions, these systems operate in perfect balance, and if a neutral conductor is present it carries zero current. In actual practice, perfectly balanced systems are seldom encountered. The electrical worker, therefore, must be to calculate values of current and voltage in unbalanced systems. Single-phase loads are frequently supplied from three-phase system. The single-phase load requirements vary considerably, making it virtually impossible to maintain a perfect balance. In a balanced three-phase system, the currents in the three lines are equal. The currents in the three phases are also equal. In other words, ILX=ILY=ILZ and Ip = Ip = Ip. if, however, ILX≠ILF≠ILZ, then IPX≠IPY≠IPZ and the system is unbalanced (see Fig. 12. 6) .

To calculate the line currents in an unbalanced three-phase system, the method in the following example may be used. Example 1

Three pure resistance, single-phase loads are connected in a delta configuration across a three-phase supply, as illustrated in Fig. 12.6. Load X requires 30 A, load Y requires 50 A, and load Z requires 80 A. Calculate the current through each line wire.

Example 1 applies to loads of 100 percent power factor connected in delta. With loads of different power factors, the phase angle will vary from 120°. For a wye connection, the line current is equal to the phase current.

Some connections may be a combination of singe-phase and three-phase loads. Under these conditions, the phase angle between three-phase load and the single-phase load must be considered.

12.7 Harmonic Effect of Fluorescent Lighting Fixtures

Most distribution systems in tile United States and Canada operate on a frequency of 60 Hz. certain types of electrical equipment produce secondary frequencies are multiples of the supply frequency. These secondary frequencies are called harmonics. For example, the second harmonic of 60 Hz is 120 Hz, the third harmonic is 180 Hz, and so on

The alienating flux developed by transformers, used in the ballasts of fluorescent lighting fixtures, produces a voltage which has a frequency of 180 hertz. This results in an additional current flowing in the supply conductors. The value of the current in the phase conductors is usual about 25 percent of the supply current. This third harmonic current adds to the supply current, causing a greater heating effect in the conductors. This increased heating effect is rather small, possibly in the vicinity of 380% greater than if the third harmonic current did not exist.

CAUTION: When installing supply, feeder, and branch circuit conductors for heavy fluorescent loads, the size of the neutral conductor should be at least equal to that of the phase conductors.

第三篇：轻化工程专业英语

Direct dye直接染料

Sulfur dye 硫化染料

Azoic dye 不溶性偶氮染料 Reactive dye 活性染料

Vat dye 还原染料

Acid dye 酸性染料

Basic dye 碱性染料

Disperse dye分散染料

Direct printing直接印花

Discharge printing 拔染印花 Resist printing 防染印花

Screen printing 筛网印花

Roller(gravure) printing滚筒印花 inkjet printing喷墨印花

Heat transfer printing 热转移印花 Rotary screen printing圆网印花 Flat screen printing平网印花 前处理：

①Singeing 烧毛

②Desizing 退浆

③Scouring 煮练

④Bleaching 漂白

⑤Mercerization 丝光

第四篇：工业工程专业英语

学院：

班号：

学号：

姓名：

日期：

ERP系统的发展过程

ERP系统是目前普遍存在于大型企业并且供应商目前的举动是把它们为中小型企业重新打包(SMEs)。这种迁移有许多结果需要通过了解ERP系统的历史、演变过程和它现在的系统结构来解决。在ERP系统的优点和缺点会影响他们在这个新市场的渗透。主要系统提供者描述出了市场定位和总体战略。该单元的结论是，ERP的增长和采纳的成功和在新黄金时期的发展依赖于ERP系统能力向客户关系管理(CRM)、供应链(SCM)、其他模型和互联网功能应用的扩展。

介绍 由微电子驱动的信息和通信技术(ICT)的前所未有的增长，计算机硬件和软件系统已影响了整个组织计算应用的各个方面。同时，公司环境与职能部门日益结合，需要为决策提供越来越多的内部功能数据流，包括及时有效的产品部件的供给、库存管理、清算账目、人力资源以及产品和服务分配。在此背景下，公司管理需要高效的信息系统来通过降低成本来提高竞争力和获得更好的物流。这是普遍由大，小到中等规模的企业(SME)认可的，在正确的时间提供正确的信息的能力带来了复杂的商业实践的全球竞争力的世界巨大的回报组织。 出现于20世纪80年代后期，开始于上世纪纪90年代的新软件系统并在工业内被称为企业资源管理(ERP)已经浮出水面，其市场目标主要是大型复杂的商业公司。这些复杂，价格昂贵，功能强大，专有系统是现成的解决方案，要求顾问根据公司的要求来定制，落到实处。在许多情况下，他们迫使公司重新设计其业务流程以适应软件模块的逻辑，以简化整个组织的数据流。这些软件解决方案，与旧，传统的室内设计公司特定的系统不同，在需要时，集成适合的剪裁和添加附加的多模块的商业软件包。计算能力和互联网的惊人增长带来的ERP厂商和客户以往更多的挑战，重新设计的ERP产品，打破独资企业和定制化的障碍，拥抱，协同商务在企业内部网，外部网和互联网的无缝的方式。供应商已承诺很多“附加”的模块，其中一些已经成为市场上接受这些挑战的ERP厂商的标志。这是一个永无止境的过程，再造和发展带来了新的产品和解决方案的ERP市场。ERP厂商和客户认识到对开放式架构包，提供可互换的模块，并允许轻松定制和用户接口的需要。

ERP系统的定义

企业资源规划系统或企业系统是企业管理软件系统，包含模块配套功能区如规划、制造、销售、营销、分销、会计、财务、人力资源管理、维护管理、库存管理、服务和维护、交通运输业和电子商务。该软件的体系结构有利于模块的透明集成，提供在一个始终可见的方式在企业内的所有功能之间的信息流。企业的ERP计算允许公司通过更换或重新设计他们大多是不兼容的遗留信息系统来实行单一的集成系统。美国生产与库存控制学会(2001)定义的ERP系统，“一个为生产，分销和服务公司中有效的规划和控制所有所需要的资源而采取，制造，船舶及考虑客户订单的方法。”我们引用几个定义从公开发表的文献，进一步解释这个概念：“ERP(企业资源计划系统)，包括一个商业软件包，它提供公司财务流通信息、会计、人力资源、供应链和客户信息无缝集成信息(Davenport.1998)。”“ERP系统是可配置的信息系统软件包内和跨职能领域的高集成信息和信息化的进程组织”(Kumar&VanHillsgersberg.2000)。“一个数据库，一个应用程序，并在整个企业的统一接口(TImer.1998)。”“ERP系统是被设计来处理组织的基于计算机的系统交易和促进一体化和实时规划，生产和客户响应(O’Leary，2001)。”ERP系统尾部的概念是Davenport(1998)提出与图如图l所示。

ERP系统的演化

ERP系统的演化与计算机硬件和软件系统领域的壮观发展密切相关。在20世纪60年代大多数公司设计、开发和实施的集中式计算系统，主要是自动化的存货控制系统采用库存控制包(IC)。这些都是基于编程语言如COBOL，ALGOL和FORTRAN的遗留系统。物料需求计划(MRP)系统在上世纪70年代开始发展并主要涉及计划根据主生产计划的产品或零件的要求。沿着这条路径，被称为制造资源计划(MRPII)的新软件系统在20世纪80年代被引入，重点是通过与生产要求的同步优化材料的制造工艺。MRP II包括诸如车间和配送管理，项目管理，财务，人力资源和工程等领域。ERP系统最早出现在20世纪80年代末和90年代初具有企业范围内的跨职能协调和整合的力量。基于MRP和MRP II的技术基础，ERP系统整合业务流程，包括制造，分销，会计，财务，人力资源管理，项目管理，库存管理，服务和维护，运输，提供横跨访问，企业的可见性和一致性。 在上世纪90年代，ERP厂商添加更多的模块和功能“插件”的核心模块，催生了“扩展ERPs”。这些ERP扩展包括高级计划与排程系统(APS)，电子商务解决方案，如客户关系管理(CRM)和供应链管理(SCM)。图2总结与ERP相关的历史事件

ERP系统和公司 它通常是一个误导性的看法，即实施ERP系统将提高组织的功能过夜。实现全方位节约成本和改进服务的高期望是非常依赖于所选择的ERP系统如何良好地适应组织功能以及与企业文化、组织的战略和结构匹配系统的剪裁和配置过程的融合效果。所有的ERP系统期望同时改进骨干和前端同步功能。组织选择和部署ERP系统有许多有形和无形的利益和战略原因。在许多情况下，投资回报(ROI)计算，对许多无形的和战略利益权衡。该行业标准的ERP系统可以带给组织的好处如表4.1所示。要获得ERP系统的益处，但是，企业需要克服一些问题和缺点，这是列于表4.2。

表4.1ERP系统的优点

据估计，在1998年ERP系统的花费约为170亿美元并且年增长率在30%到50%之间。许多公司就有关实施和维护的软件服务还花费许可费用的数倍数。对于ERP系统的全球许可和维护收入在2000年为215亿美金， 1999年市场价值190亿美元相比的增长13.1%(Broatch，2001)。在ERP系统市场的持续增长是由于该供应商正在加入的应用，如供应链管理，客户关系管理和网络功能的应用电子商务整合的事实。

表4.2ERP系统的缼点

在财富1000强企业中超过60%已安装或正在实施包装的ERP系统，以支持其后端业务活动的过程(Kraft，2001)。这些软件包的财富1000强企业实现通过提供简单，更便宜和预配置的易于安装的解决方案很好地运行在IT预算的ERP厂商都瞄准了这一尚未开发的中小企业市场，适合于规模较小的公司理应按比例缩小的系统大多数中小企业在预算和时间上的限制。对于一些厂商则可能会导致提供集中管理的互联网功能的ERP系统为中小企业提供的基础服务能从任何地方访问和任何时候使用。 ERP系统架构

大部分在 MRP和财务软件服务领域经验丰富ERP厂商，认识到了上世纪70年代和80年代在大型企业所使用的旧的遗留信息系统的局限性。其中的一些老系统是内部开发的，而其他人通过使用几个不同的数据库管理系统，语言和软件包，创建不兼容的解决方案岛屿不适合它们之间的无缝数据流中的不同厂商开发。这是很难提高此类系统的容量或当公司的变化业务、战略目标和新的信息技术无法更新。 ERP系统要求具有以下特性：

a) 模块化设计包括许多不同的业务模块，如财务，制造，会计，分销等。

b) 使用集中常见的数据库管理系统(DBMS)。

c) 该模块集成，并提供了模块之间的无缝数据流，通过标准接口增加运作透明度。

d) 它们的复杂系统一般涉及高费用。 e) 它们非常灵活，并提供最佳业务实践。

f) 他们需要耗时的剪裁和配置步骤与公司的业务功能整合。 g) 该模块工作时间与网络同步且具有批处理功能。 h) 他们具有或很快将有上网功能。

不同的ERP厂商提供的ERP系统一定程度的特别之处，但核心模块几乎所有的人的都相同。一些核心ERP模块中找到成功的ERP系统有以下几种： a) 会计管理 b) 财务管理 c) 制造管理 d) 生产管理 e) 交通运输业管理 f) 销售与分销管理 g) 人力资源管理 h) 供应链管理 i) 顾客和关系管理 j) 电子商务

ERP系统的模块可以工作作为独立的单位或多个模块可以被组和在一起，形成一个集成的系统。该系统通常设计为在多种操作平台上运行，如UNIX，MS，Windows NT，Windows 2000，IBM AIX和HP-UX系统。SAP AG，最大的ERP供应商，在他其著名的R /3 ERP系统中提供了许多模块，如表4.3所示。新模块由SAP和其他厂商因应市场和技术需求(如Internet技术)的引进的。

企业系统采用小客户机/服务器(C / S)技术或客户/大服务器(C/ FS)的架构，建立一个分散的计算环境。在一个C / S系统中，多个客户端设备的用户操作，例如从应用服务器的桌面PC请求的服务，操作的客户端设备继而从数据库服务器获取所请求的服务相关的信息。该请求可以是简单的数据文件，数据值，通信服务，交易处理或主文件更新。一般的做法是有三层结构，如图3。在这三层系统的用户接口运行在客户机上。要运行ERP系统相对强大的电脑(客户端)和强大的服务器，需要在那里执行的大部分成千上万的操作。客户机/服务器系统的功能执行以下逻辑的三层：

a) 表示层：图形用户界面(GUI)的浏览器进行数据输入或访问系统功能。

b) 应用层：业务规则，功能，逻辑和作用于数据的程序接收/传送从/到数据库服务器。

c) 数据库层：该组织的业务或事务性数据，包括元数据的管理，主要是采用了业界标准的RDBMS结构化查询语言(SQL)的规定。

该逻辑布置有助于在ERP用户界面在客户端上运行，所述处理模块在中间层应用程序服务器上运行，并且数据库系统在数据库服务器上运行。

From：Liaquat Hossain，Mohammad A . Rashid，Jon David Patrick，Evolution of Enterprise Resource Planning System，2001

第五篇：电气专业英语论文

电气自动化专业英语分电子技术、电机控制技术、计算机控制技术、自动控制系统四部分，共十五章，每章后配有以专业术语为主的词汇表。本书从大学高年级学生科技英语阅读和写作的需要出发，选取的专业技术类文章覆盖了电气自动化领域的基础内容。 PART 1 ELECTRONICS 1 Electrical Measuring Instrmnents 1.1 SAFETY PRECAUTION 1.2 BASIC MEIER CONSTRUCTION AND OPERATION 1.3 USE OF MEASURING INSTRUMENT 2 Ftmdamentals of Solid-State Power Device 2.1 INTRODUCTION 2.2 SOLID-STATE POWER DE

4.2 ASYNCHRONOUS DIGITAL SYSTEMS 4.3 SEQUENTIAL DIGITAL SYSTEMS PART 2 ELECTRICAL MACHINE, CONTROL COMPONENT AND SENSOR 5 Introduction to Electrical Machines 5.1 BRIEF HISTORY OF ELECTRICAL MACHINES 5.2 BASIC CONSTRUCTION OF ELECTRICAL MACHINES 5.3 CONSTRUCTION FEATURES OF ELECTRICAL MACHINES 6 DC Motor and Induction Motor 6.1 TYPES OF DC MOTORS 6.2 DC MOTOR ANALYSIS 6.3 DC MOTOR SPEED-TORQUE CHARACTERISTICS 6.4 THREE-PHASE INDUCTION MOTOR 6.5 INDUCTION MOTOR TORQUE-SPEED CHARACTERISTICS 7 Electrical Machine Control Systems 7.1 CONTROL SYMBOLS 7.2 MACHINE CONTROL WITH SWlTCHES 7.3 CONTROL EQUIPMENT FOR ELECTRICAL MACHINES 7.4 MOTOR STARTING SYSTEMS 7.5 FORWARD AND REVERSE CONTROL 7.6 DYNAMIC BRAKING 8 Control Sensors 8.1 INTRODUCTION 8.2 SENSORS AND TRANSDUCERS 8.3 ANALOG SENSORS FOR MOTION 8.4 DIGITAL TRANSDUCERS PART 3 COMPUTER CONTROL TECHNIQUES 9 Introduction of Computernets 9.1 USES OF COMPUTER NETWORKS 9.2 NETWORK HARDWARE 9.3 NETWORK SOFTWARE 9.4 EXAMPLE NETWORKS 10 Introduction of Programmable Controller 10.1 HISTORY 10.2 BASIC CONCEFPTS 10.3 GENERAL APPLIGATION AREAS 10.4 OPERATING ENVIRONMENT CONSIDERATIONS ……

11 Foundation of PLC PART 4 AUTOMATIC CONTROL SYSTEMS 12 Electrical Distribution 13 Introduction to Control Engineering 14 Speed Control of DC Motor 15 Frequency Controls for AC Motors