This is to certify that the practice "Dhaka Metro Metro Project Overview and Substation Installation System" was done by the following student under my direct supervision from the work was done by them in the electrical and electronic engineering departments under the faculty of engineering bachelor degree in electrical and electronic engineering thesis presentation was held at daffodil international university on. Sad Parvez, ID spring 2021 session has been accepted as satisfactory in partial fulfillment of the requirement for the degree of Bachelor of Science in Electrical and Electronic Engineering in. Next we would like to take this opportunity to express my appreciation and gratitude to my Internship supervisor Md.
Mahbub-Ud-Jaman, Lecturer, Department of EEE, Faculty of Engineering, Daffodil International University, for his dedicated support, motivation and guidance throughout this internship. Enamul called the project manager (PM), ATS power limited for this help and thanks to all members of ATS power limited who helped me in learning the works. Apart from support and encouragement, we would like to thank all our friends for sharing knowledge information.
To our dear family, we would like to express our deepest love and gratitude to them for being extremely helpful and also for their inspiration and encouragement during our studies in this university. I have done internship under Dhaka Metro Rail Project a Larsen & Toubro (L&T) and Italian Thai Development (ITD) - SINOHYDRO JV Sub-contact of ATS Power Limited. Here are the things I saw and learned. A substation is part of the electricity generation, transmission and distribution system.
Dhaka Mass Rapid Transit Development Project MRT LINE -6 has been assigned to monitor and manage all operations of Dhaka Metro Rail.
COMPANY PROFILE & MERTO RAIL
Company vision& mission 1
Sales & Service Capability 1
Dhaka Metro Rail Overview 2
- Project Description 2, 3
A 31.24 km railway line will be constructed from Natun Bazar to Kuril with 3.75 km underground transfer line. Out of Tk 41,237 crore for this project, Japan will provide Tk 29,117 crore and the rest of Tk 12,121 crore will be provided by the Government of Bangladesh. Out of the total 20 kilometers of the project, 13 kilometers will be underground and the remaining 8 and a half kilometers will be by air.
There will be a total of 14 stations on this route, of which 9 will be underground and 5 by air.
Major Equipment 6
- Bus-Bar 6
- SF6 Circuit Breaker 7
- Isolator 8
- Power Transformer 9
- Current Transformer 10
A Bus-Bar is located in an electrical conductor that receives electricity from incoming feeders and distributes it to outgoing feeders, also called a feeder. When a fault occurs, the circuit breaker is tripped and the faulty part of the bus bar can be easily disconnected from the circuit. The electrical busbar is available in rectangular, cross-sectional, round and many other shapes.
Circuit breaker in Sulfur Hexafluoride protects the power supply and distribution system by blocking the excess electrical voltage. A circuit breaker in which SF6 pressurized gas is used to extinguish the arc is called SF6 circuit breaker. Transformer: A transformer is an electrical device that stabilizes current and power that converts the voltage from one place to another.
Current transformer is an electrical device could be a current measurement system that wants to measure this in high voltage distribution lines directly by stepping down the currents to measurable values using that magnetic attraction circuit is called current transformer. Insulator is a material through which no electricity can pass from one end to the other is called insulator. Switchgear: Switchgear is an electrical and protective device used to control, regulate and turn on and off the electrical circuit in the electrical power system known as switchgear.
Rectifier Transformer: A rectifier transformer is a circuit that converts alternating current (AC) to direct current (DC) is called rectifier transformer. A dry type transformer is a type of transformer that never uses any insulating liquid where its winding or core is immersed in liquid. Grounding is unwanted electricity Grounding is the process by which an electric current is transferred to the earth through a conductor to protect electrical equipment and people is called grounding.
Pipe earthing is the use of pipes to protect electrical equipment and people from excess electricity and transfer excess electricity to the earth's surface is called pipe earthing. Pipe grounding is the use of pipes to protect electrical equipment and people from excess electricity and transfer excess electricity to the earth's surface is called rod grounding. GI flat rod grounding is the use of pipes to protect electrical equipment and people from excess electricity and transfer excess electricity to the earth's surface is called GI flat rod grounding. GI flat rod size 50*6 mm.
The cables can be buried directly into the ground, or can be installed in channels buried in the ground. Overhead cables are often replaced by underground cables. HT cables can also be installed in the underground trenches.
Cable Tray Materials
Type of cable tray 25
- Ladder cable tray 25
- Perforated Cable Tray 26
- Channel cable Tray 27
- Solid bottom cable tray 28
Duct cable tray nothing more than a metal tray that can be used for very small cable installations. Fixed-bottom cable trays For fiber optic cable installations where sagging cables can affect system performance, fixed-bottom (non-vented) cable trays are preferred. However, the main reason for choosing solid bottom trays is concern for protection against electromagnetic/radio frequency interference.
I am very happy to get the opportunity to work in Dhaka Metro rail because in Dhaka metro rail.
