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| موضوع: كتاب A Textbook of Electrical Technology Volume III - B.L.Theraja السبت 30 مارس 2013, 3:06 pm | |
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معى اليوم احبتى فى الله كتاب A Textbook of Electrical Technology Volume III -Transmission and Distribution - B.L.Theraja
ويتناول الموضوعات الآتية: Transmission and Distribution of D.C. Power , Twowire and Three-wire System , Voltage Drop and Transmission Efficiency , Methods of Feeding Distributor , D.C.Distributor Fed at One End , Uniformly Loaded Distributor , Distributor Fed at Both Ends with Equal Voltages , Distributor Fed at Both Ends with Unequal Voltages , Uniform Loading with Distributor Fed at Both Ends , Concentrated and Uniform Loading with Distributor Fed at One End , Ring Distributor , Current Loading and Load-point Voltages in a 3-wire System , Three-wire System , Balancers , Boosters , Comparison of 2-wire and 3-wire Distribution Systems , Objective Tests General Layout of the System , Power Systems and System Networks , Systems of A.C. Distribution-Single-phase, 2- wire System-Single-phase, 3-wire System-Two-phase, 3-wire System-Two-phase, 4-wire System , Three-phase, 3-wire System-Three-phase, 4-wire System , Distribution , Effect of Voltage on Transmission Efficiency , Comparison of Conductor Materials Required for Various Overhead Systems , Constants of a Transmission Line , Reactance of an Isolated Single-phase Transmission Line , Reactance of 3-phase Transmission Line , Capacitance of a Single-phase Transmission Line , Capacitance of a Three-phase Transmission Line-Short Single-phase Line Calculations , Short Three-phase Transmission Line Constants , Effects of Capacitance , Nominal T-method- “Nominal” π- method , Ferranti Effect-Charging Current and Line Loss of an Unloaded Transmission Line , Generalised Circuit Constants of a Transmission Line , Corona-Visual Critical Voltage , Corona Power , Disadvantages of Corona , Underground Cables , Insulation Resistance of a Single-core Cable , Capacitance and Dielectric Stress , Capacitance of 3-core Belted Cables , Tests for Three-phase Cable Capacitance , A.C. Distribution Calculations , Load Division Between Parallel Lines , Suspension Insulators , Calculation of Voltage Distribution along Different Units , Interconnectors , Voltage Drop Over the Interconnector , Sag and Stress Analysis , Sag and Tension with Supports at Equal Levels , Sag and Tension with Supports at Unequal Levels-Effect of Wind and Ice , Objective Tests. Introduction , Need Based Energy Management (NBEM) , Advantages of NBEM , Conventional Distribution Network , Automated System , Sectionalizing Switches , Remote Terminal Units (RTU’s) , Data Acquisition System (DAS) , Communication Interface , Power line carrier communication (PLCC) , Fibre optics data communication , Radio communication , Public telephone communication , Satellite communication , Polling scheme , Distribution SCADA , Man - Machine Interface , A Typical SCADA System , Distribution Automation , Load Management in DMS Automated Distribution System , Data acquisition unit , Remote terminal unit (RTU) , Communication unit , Substation Automation , Requirements , Functioning , Control system , Protective System , Feeder Automation , Distribution equipment , Interface equipment , Automation equipment , Consumer Side Automation , Energy Auditing , Advantages of Distribution Automation , Reduced line loss , Power quality , Deferred capital expenses – Energy cost reduction – Optimal energy use , Economic benefits , Improved reliability , Compatibility , Objective Tests. General , Traction Systems , Direct Steam Engine Drive , Diesel-electric Drive-Battery-electric Drive- Advantages of Electric Traction , Disadvantages of Electric Traction , Systems of Railway Electrification , Direct Current System , Single- phase Low frequency A.C. System , Threephase Low frequency A.C. System , Composite System , (xi) Kando System-Single-phase A.C. to D.C. System , Advantages of 25 kV 50 Hz A.C. System , Disadvantages of 25kV A.C. System , Block Diagram of an A.C. Locomotive , The Tramways , The Trolley Bus-Overhead Equipment (OHE) , Collector Gear of OHE , The Trolley Collector , The Bow Collector , The Pantograph Collector , Conductor Rail Equipment , Types of Railway Services , Train Movement , Typical Speed/Time Curve , Speed/Time Curves for Different Services , Simplified Speed/Time Curve , Average and Schedule Speed , SI Units in Traction Mechanics , Confusion Regarding Weight and Mass of a Train , Quantities Involved in Traction Mechanics , Relationship Between Principal Quantities in Trapezoidal Diagram , Relationship Between Principal Quantities in Quadrilateral Diagram , Tractive Effort for Propulsion of a Train , Power Output From Driving Axles , Energy Output from Driving Axles , Specific Energy Output , Evaluation of Specific Energy Output , Energy Consumption , Specific Energy Consumption-Adhesive Weight , Coefficient of Adhesion , Mechanism of Train Movement , General Feature of Traction Motor , Speed , Torque Characteristic of D.C. Motor , Parallel Operation of Series Motors with Unequal Wheel Diameter , Series Operation of series Motor with Uneuqal Wheel Diameter , Series Operation of Shunt Motors with Unequal Wheel Diameter , Parallel Operation of Shunt Motors with Unequal Wheel Diameter , Control of D.C. Motors , Series -Parallel Starting , To find ts, tp and η of starting , Series Parallel Control by Shunt Transition Method , Series Parallel control by Bridge Transition , Braking in Traction , Rheostatic Braking , Regenerative Braking with D.C. Motors , Objective Tests. Advantages of Electric Drive , Classification of Electric Drives , Advantages of Individual Drive , Selection of a Motor , Electrical Characteristics , Types of Enclosures , Bearings , Transmission of Power , Noise , Motors of Different Industrial Drives , Advantages of Electrical Braking Over Mechanical Braking , Types of Electric Braking , Plugging Applied to DC Motors , Plugging of Induction Motors , Rheostatic Braking , Rheostatic Braking of DC Motors , Rheostatic Braking Torque , Rheostatic Braking of Induction Motors , Regenerative Braking , Energy Saving in Regenerative Braking - Objective Tests. Size and Rating , Estimation of Motor Rating , Different Types of Industrial Loads , Heating of Motor or Temperature Rise , Equation for Heating of Motor , Heating Time Constant , Equation for Cooling of Motor or Temperature Fall , Cooling Time Constant , Heating and Cooling Curves , Load Equalization , Use of Flywheels , Flywheel Calculations , Load Removed (Flywheel Accelerating) , Choice of Flywheel , Objective Tests. Classes of Electronic AC Drives , Variable-Frequency Speed Control of a SCIM , Variable Voltage Speed Control of a SCIM , Speed Control of a SCIM with Rectifier Inverter System , Chopper Speed Control of a WRIM , Electronic Speed Control of Synchronous Motors , Speed Control by Current fed D.C. Link , Synchronous Motor and Cycloconverter , Digital Control of Electric Motors , Application of Digital Control , Objective Tests. Introduction , Advantages of Electric Heating , Different Methods of Heat Transfer , Methods of Electric Heating , Resistance Heating , Requirement of a Good Heating Element , Resistance Furnaces or Ovens , Temperature Control of Resistance Furnaces , Design of Heating Element , Arc Furnaces , Direct Arc Furnace , Indirect Arc Furnace , Induction Heating , Core-type Induction Furnace , Vertical Core-Type Induction Furnace , Indirect Core-Type Induction Furnace , Coreless Induction Furnace , High Frequency Eddy-current Heating , Dielectric Heating , Dielectric Loss-Advantages of Dielectric Heating , Applications of Dielectric Heating , Choice of Frequency , Infrared Heating , Objective Tests. Definition of Welding , Welding Processes , Use of Electricity in Welding , Formation and Characteristics of Electric Arc , Effect of Arc Length , Arc Blow , Polarity in DC Welding , Four Positions of Arc Welding , Electrodes for Metal Arc Welding , Advantages of Coated Electrodes , Types of Joints and Types of Applicable Welds , Arc Welding Machines , V-I Characteristics of Arc Welding D.C. Machines , D.C. Welding Machines with Motor Generator Set , AC Rectified Welding Unit , AC Welding Machines , Duty Cycle of a Welder , Carbon Arc Welding , Submerged Arc Welding , Twin Submerged Arc Welding , Gas Shield Arc Welding , TIG Welding , MIG Welding , MAG Welding , Atomic Hydrogen Welding , Resistance Welding , Spot Welding , Seam Welding , Projection Welding , Butt Welding-Flash Butt Welding , Upset Welding , Stud Welding , Plasma Arc Welding , Electroslag Welding , Electrogas Welding , Electron Beam Welding , Laser Welding , Objective Tests. Radiations from a Hot Body , Solid Angle , Definitions , Calculation of Luminance (L) of a Diffuse Reflecting Surface , Laws of Illumination or Illuminance , Laws Governing Illumination of Different Sources , Polar Curves of C.P. Distribution , Uses of Polar Curves - Determination of M.S.C.P and M.H.C.P. from Polar Diagrams , Integrating Sphere or Photometer , Diffusing and Reflecting Surfaces: Globes and Reflectors , Lighting Schemes , Illumination Required for Different Purposes , Space / Height Ratio , Design of Lighting Schemes and Lay-outs , Utilisation Factor or Coefficient of Utilization [η] , Depreciation Factor (p) , Floodlighting , Artificial Sources of Light , Incandescent Lamp , Filament Dimensions , Incandescent Lamp Characteristics , Clear and Inside , frosted Gas-filled Lamps , Discharge Lamps , Sodium Vapour Lamp , High- Pressure Mercury Vapour Lamp , Fluorescent Mercury , Vapour Lamps , Fluorescent Lamp , Circuit with Thermal Switch , Startless Fluorescent Lamp Circuit , Stroboscopic Effect of Fluorescent Lamps , Comparison of Different Light Sources , Objective Tests. Economic Motive , Depreciation , Indian Currency , Factors Influencing Costs and Tariffs of Electric Supply , Demand , Average Demand , Maximum Demand , Demand Factor , Diversity of Demand , Diversity Factor , Load Factor , Significance of Load Factor , Plant Factor or Capacity Factor , Utilization Factor (or Plant use Factor) , Connected Load Factor , Load Curves of a Generating Station , Tariffs-Flat Rate , Sliding Scale , Two-part Tariff , Kelvin's Law-Effect of Cable Insulation , Note on Power Factor , Disadvantages of Low Power Factor , Economics of Power Factor , Economical Limit of Power Factor Correction , Objective Tests.
رابط تنزيل كتاب A Textbook of Electrical Technology Volume III - B.L.Theraja
رابط أخر لتنزيل كتاب A Textbook of Electrical Technology Volume III - B.L.Theraja
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