Anna University , Chennai
Department of B.E-Electrical and Electronics Engg
Fifth Semester
EE2303 Transmission And Distribution
(Regulation 2008)
Content :
UNIT-1
Introduction
Power system
Structure of power system
Comparison of HVDC and EHVAC
Classification of HVDC system
FACTS: (Flexible Alternating current transmission system)
FACTS controller
Sag and tension in overhead lines
Safety factors
Supports at different levels
Effect of ice
Effect of wind
Effect of ice and wind
UNIT-2
TRANSMISSION LINE PARAMETERS
Parameters of
1. Resistance
2. Inductance
3. Capacitance
4. Shunt conductance
Factors of deciding transmission system
Transposition of conductors
Types of conductors
Advantage
Disadvantage
Inductance of composite conductors
Inductance of standard three phase conductors
Inductance of bundled conductors
Skin effect
Proximity effect
Interference with neighbour communication circuit
Electromagnet effect
Electrostatic effect
Corona
Corona power loss
Electrical factors
Methods of reducing corona loss
UNIT-3
MODELLING AND PERFORMANCE OF TRANSMISSION
Transmission efficiency
Classification of lines
1. Short transmission line
2. Medium transmission line
3. Long transmission
Problems
Compensation of transmission line
Objective
Classification
Shunt compensation
Series compensation
Capability limit of lines
UNIT-4
CABLES
Classification of cables
Based on location
Based on voltage
Based on type of insulation
Based on shielding
Based on construction
Conductors
Grading of cables
Types
Insulators
Equilisation of potential across each unit
UNIT-5
Substation
Size of substation
Location of substation
Component of substation
Types of circuit
Instrument transformers
Classification of substation
Bus bar arrangement
Substation bus scheme
Grounding
Neutral grounding
Advantage
Disadvantage
Features
Earthing
Types
Effect of grain size
Distribution system
Feeders
Classification
Grounding grids
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