DEPARTMENT OF ELETRICAL & ELECTRONIC ENGINEERING

Atish Dipankar University Science and Technology.

STUDY OF ELECTRICAL POWER GENERATION,

TRANSMISSION AND DISTRIBUTION IN BANGLADESH

Jagadish Chandra Sutradhar ID # 112-

0070-511

Md. Sharif Hossain ID # 112-0164-511

Syed Shawkat Aziz ID # 112-0011-511

Mohammad Ali Hasan ID # 112-

0135-511

Md. Jakir Hossain ID # 122-0197-511

INTRODUCTION

For growing development of a country, electricity has a vital role in all

sectors. For the proper utilization, is required to transmit and distribute the

electrical power through proper way.

Each generating station needed enough installed capacity to meet the

local peak loads. Bangladesh is an underdeveloped country. Its socio-

economic structure is gradually increasing. So the demand of power is

increasing day by day and thus the importance of generation,

transmission and distribution are becoming more complicated.

An electric power system consist of the three principal components. They are

1. Generation system,

2. Transmission system and

3. Distribution system.

OBJECTIVES

1. To study the different power stations such as hydro electric

power station, thermal power station, Nuclear power station,

diesel power station and Gas turbine power station.

2. To study the comparative facilities of different power

stations.

3. To study the comparative productive ability of different

power stations.

4. To study the power generation in Bangladesh.

5. To study the transmission system in Bangladesh.

Study in

Power

Generation

System

GENERATING STATION

Bulk electric power is produced by special plant is known asthe generating station or power plants. A generating stationessentially employs a prime mover coupled to an alternatorfor the production of electric power. The alternator convertsmechanical energy of the prime mover into electricalenergy. The electrical energy produced by the generatingstation is transmitted and distributed with the help ofconductors of various consumers.

Types of Generating Station

1) Steam power plant

2) Hydro-electric power plant

3) Diesel power plant

4) Nuclear power plant

STEAM POWER PLANT

A generating station that converts the heat energy of coal combustion into

electrical energy is known as a steam power station.

Choice of Site 1. Supply of fuel

2. Availability of water

3. Transportation facilities

4. Nearness to the Load Centre

5. Distance from Populated Area

Advantages

1. The fuel is quite cheap.

2. It required less space as compared to the hydro-electric power station.

3. The cost of generation is lesser than that of the diesel power station.

Disadvantages

1. It pollutes the atmosphere due to the production of large amount of

smoke and fumes.

2. It is costlier in running cost as compared to hydro-electric plant.

SCHEMATIC ARRANGEMENT

Cooling tower

L.P. Turbine

H.P Turbine

Deaerator

Generator

Extractions

pump

Transmission

line

Re heater

Cooling water pump Condenser

Economizer

Air pre heater

Precipitator

I.P Turbine

Super heater

Chimney

Induce

Draught

fan

Boiler

dr10Steam Feed heater

Ash

hopper

STEAM POWER PLANT

HYDRO-ELECTRIC POWER STATION

A generating station which utilizes the potential energy of water at a high level for

the generation of electrical energy is known as hydro-electric power station.

1. Availability of water

2. Storage of water

3. Cost and type of land

4. Transportation facilities

Choice of Site

NEUCLEAR POWER STATION

A generating station in which nuclear energy is converted into electrical energy isknown as a nuclear power station.

Selection1. Availability of water

2. Disposal if water

3. Steam turbine

4. Alternator

SCHEMATIC ARRANGEMENT

DIESEL POWER STATION

A generating station in which diesel engine is used as the prime mover for thegeneration of electrical energy is known as diesel power station.

Choice of Site

Distance from load center.

Availability of water.

Foundation condition.

Fuel transportation.

Access to site.

SCHEMATIC ARRANGEMENT

GAS TURBINE POWER STATIONA generating station which employs gas turbine as the prime mover for the generation

of electrical energy is known as a gas turbine power plant.

SCHEMATIC ARRANGEMENT

Transmission System

Primary Transmission

Grid System

Grid sub- station

Secondary Transmission

Classification of overhead transmission line

Definition of important terms

Advantages of high voltage transmission system

Advantages and disadvantages of high voltage direct current system

Transmission system of different countries

1. Transmission system of India

2. Transmission system of Sri-lanka

3. Transmission system of Nepal

4. Transmission system of Pakistan

Transmission System of Bangladesh

Mechanical Design of Overhead Transmission Line

Properties of conductor materials

Conductor’s materials

Types of conductor

Line support

Types of line support

Insulators

Types of Insulators

Electrical Design of Overhead Transmission Line

Electrical design aspects

Constant of transmission line

Characteristics of different transmission line

Transmission voltage level

Standardization of transmission voltage

Extra high voltage transmission

Protection system of transmission line

Protection components

Existing transmission line in Bangladesh

Transmission line losses

1. Types of losses

2. Skin effect

Minimization of Transmission line losses

Distribution System

Definition of Substation

Importance of Substation

Equipment of electrical Substation

Classification of Substation

Definition of different equipments

Transformer

Power Transformer

Instrument Transformer

Isolator

Lighting arrester

Insulator

Bus-Bar

Circuit-Breaker

Basic principles of operation of circuit breaker

Fig : Sulphur Hexa Fluoride Circuit Breaker (SF6)

Different Types of Circuit Breaker1. Sulphur Hexa Fluoride Circuit Breaker (SF6)

2. Vacuum Circuit Breaker (VCB)

3. Plain Breaker Oil circuit Breaker (POCB)

Vacuum Circuit Breaker (VCB)

Single Line diagram of Bhurulia Sub-Station

Fig: Plain Breaker Oil circuit Breaker (POCB)

Power Generation Plan up to 2016

India Bangladesh Transmission Link

400 KV Transmission Line

Future Plan of Bangladesh

THANKS