rambomenaa
كبير مهندسين
عدد المساهمات : 2041
التقييم : 3379
تاريخ التسجيل : 21/01/2012
العمر : 46
الدولة : مصر
العمل : مدير الصيانة بشركة تصنيع ورق
الجامعة : حلوان
 |  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.
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