الدورة الثامنة
Grounding Systems
و تتضمن
1)General
-Introducti**
-Electrodes and C**ductors
-Safety C**cepts
2) Soil Characteristics
-Soil as a c**ductor. Resistivity
-Uniform Soil
-several Layers Mode
-Artificial Soil
-Soil Treatment
3) Geometry of the Grounding Systems
-Resistive to Ground
-Separati** of the Grid C**ductors
4)Analysis of Current Circulati**
-Fault Current and Ground Current
-Different Case of Circulati**
-Extracted Currents
-Adjustment Factor .Reducti** Factor
5) Calculati** of Step and Touch Voltages
-Effects of the Current ** the human body
-Equivalent Circuits
-Limit Admissible Voltages
-Estimati** of the Voltages in the Installati**
6) C**structi** and Installati** Aspects
-Introducti**
Sizing of the Grounding C**ductors
-Corrosi**
-****ts and Weldings
-Low Voltage Installati**s
الدورة التاسعة
Surge Arresters
و تتضمن
1) General
-Introducti**
-Characteristics of MO Arresters
2) C**structive Design
3) C**figuring MO Arresters
الدورة العاشرة
Instrument Transformers
و
تتضمن
1)INTRODUCTI**
2)CURRENT TRANSFORMER
-General
-Current transformers for measuring
-Current transformers for protecti**
-Characteristics
3)VOLTAGE TRANSFORMER
-General
-Characteristics
-Capacitive voltage transformers
الدورة الحادية عشرة
applicati** of instrument transformers
الدورة الثانية عشرة
Electrical Diagrams
و تتضمن
1)GENERAL
2)SINGLE WIRE DIAGRAMS
*Introducti**
*Symbols
*Example
*Single wire diagram of transformer substati**s
*General diagram and their interpretati**
3)FUNCTI**AL DIAGRAMS
*Introducti**
*AC functi** diagrams
*C**trol and drive functi** diagrams
*Practical criteria to design diagrams
4)WIRING DIAGRAMS
*Introducti**
*Device boards
*Internal wiring diagrams
*Interc**necti** wiring diagrams
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