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Wednesday, February 23, 2011

Educational videos of Power Systems-I

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By Prof.D.P.Kothari, Centre for Energy Studies IIT Delhi.


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Objective :
Electrical Power plays significant role in day to day life of entire mankind. This course concerns the
generation and distribution of power along with the economic aspects.

Thermal Power Stations
Line diagram of Thermal Power Station (TPS) showing paths of coal, steam, water, air, ash and flue
gasses.- Brief description of TPS components: Economizers, Boilers, Super heaters, Turbines,
Condensers, Chimney and Cooling towers.

Gas and Nuclear Power Stations
Nuclear Power Stations: Nuclear Fission and Chain reaction.- Nuclear fuels.- Principle of operation of
Nuclear reactor.-Reactor Components: Moderators, Control rods, Reflectors and Coolants.- Radiation
hazards: Shielding and Safety precautions.- Types of Nuclear reactors and brief description of PWR, BWR
and FBR.
Gas Power Stations: Principle of Operation and Components ( Block Diagram Approach Only)

General Aspects of Distribution Systems and D.C. Distribution Systems
Classification of Distribution Systems - Comparison of DC vs AC and Under-Ground
vs Over - Head Distribution Systems- Requirements and Design features of Distribution Systems-
Voltage Drop Calculations (Numerical Problems) in D.C Distributors for the following cases: Radial D.C
Distributor fed one end and at the both the ends (equal/unequal Voltages) and Ring Main Distributor.

A.C. Distribution Systems.
Voltage Drop Calculations (Numerical Problems) in A.C. Distributors for the following cases: Power
Factors referred to receiving end voltage and with respect to respective load voltages.

Classification of substations: Air insulated substations - Indoor & Outdoor substations: Substations
layout showing the location of all the substation equipment.
Bus bar arrangements in the Sub-Stations: Simple arrangements like single bus bar, sectionalized single
bus bar, main and transfer bus bar system with relevant diagrams.
Gas insulated substations (GIS) – Advantages of Gas insulated substations, different types of gas
insulated substations, single line diagram of gas insulated substations, bus bar, construction aspects of
GIS, Installation and maintenance of GIS, Comparison of Air insulated substations and Gas insulated

Power factor and Voltage Control
Causes of low p.f -Methods of Improving p.f -Phase advancing and generation of reactive KVAR using
static Capacitors-Most economical p.f. for constant KW load and constant KVA type loads, Numerical
Dependency of Voltage on Reactive Power flow.- Methods of Voltage Control: Shunt Capacitors, Series
Capacitors, Synchronous Capacitors, Tap changing and Booster Transformers

Economic Aspects of Power Generation
Load curve, load duration and integrated load duration curves-load, demand, diversity, capacity, utilization
and plant use factors- Numerical Problems.

Tariff Methods
Costs of Generation and their division into Fixed, Semi-fixed and Running Costs.
Desirable Characteristics of a Tariff Method.-Tariff Methods: Flat Rate, Block-Rate, two-part, three –part,
and power factor tariff methods and Numerical Problems

1. A Text Book on Power System Engineering by M.L.Soni, P.V.Gupta, U.S.Bhatnagar
and A.Chakraborti, Dhanpat Rai & Co. Pvt. Ltd., 1999.
2. Principles of Power Systems by V.K Mehta and Rohit Mehta S.CHAND& COMPANY LTD.,
New Delhi 2004.

1. Elements of Power Station design and practice by M.V. Deshpande, Wheeler Publishing.
2. Electrical Power Systems by C.L.Wadhawa New age International (P) Limited, Publishers 1997.
3. Electrical Power Generation, Transmission and Distribution by S.N.Singh., PHI, 2003.
4. Gas turbine performance, by PP Wals, P.Fletcher, Blackwell Publisher, 2004.WITTER

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