http://suspace.su.edu.bd/handle/123456789/13 2026-04-18T12:45:34Z http://suspace.su.edu.bd/handle/123456789/244 STUDY OF ELECTRICAL PO\ryER TRANSMISSION AND DISTRIBUTION IN BANGLADESH ALAM, MD. MAHBUBA L; KHAN, MU HAMMADARIF HA SSA/N; ISLAM, MD. SHAHEDU L; SHAHZALAL, MD.; UDDIN, ZIA In this modern world, the dependence on electricity is so much that it has become a part and parcel of our life. The development of any country of the world is based on electricity and its proper generation, transmission and distribution. For the proper utilization, it is required to transmit and distribute the generating electrical power through the proper way' For proper power generation, we have to consider the selection of power station according to the site selection of the different power station and their advantage and disadvantage' In this thesis work, we have discussed about different types of power station' their merits & demerits, power generation in Bangladesh, power demand, installed capacity deficiency of power' power plant under construction. We have also discussed about the transmission and distribution system. We have included mechanical design of transmission system, electrical design of transmission system' different types of transmission loss, remedy of loss. For distribution system, we have included the bhurulia distribution sub-station. we think that, this study will be very helpful for better understanding about generation and ffansmission system of Bangladesh 2016-10-15T00:00:00Z http://suspace.su.edu.bd/handle/123456789/243 Design and construction of Smoke Detector With Water flow System Mustafa, Md:; Islam, Md. Rafiqul; Rahaman, Md. Habibur; Mia, Md: Pannu; Sarkar, Sarloy Kumar Security is a prime concern in our day-today life. Everyone wants to be as much secure as possible. A smoke detector is a device that detects smoke. typically as an indicator of fire. Commercial, industrial, and mass residential devices issue a signal to a fire alarm system. while household detectors, known as smoke alarms, generally issue a local audible and/or visual alarm from the detector itself. Smoke detectors save thousands of lives each year. In fact, it is recommended that every home have one smoke detector per floor. Our smoke detectors consist of two basic parts: a sensor to sense the smoke and a very loud electronic hom to wake people up & water flow automatically to reduce fire.To design & construct a fire alarm system,, first information has been collected from books. Electronic circuit of this digital lock has been designed using Op amp & flip flop. Some electronic components shops have been visited and the required components have been purchased from Patuatuli market, Dhaka. According to the design all those electronic components have been populated in printed circuit board by soldering iron. The primary objective of this project is to indicate the fire which is control by flip-flop ic When smoke pass between light source and ldr it will indicate gradually through led. When smoke is low then ledl will be on. As the smoke is high then led 2,3, 4 will be on and when led 4 will be on then buzzer will be also on & water flow automatically.Here we can use two separate switch to control alarm & water flow. After construction this digital lock it has been found to be very accurate and effective requiring only Tk 5,000 to purchased it. So this project can be a very economical and effective 2016-02-15T00:00:00Z http://suspace.su.edu.bd/handle/123456789/242 Basic Phenomenon of Power Plant and its Protection System Mamun, Abdullah Al The important consideration oftheory and practical base study Basic Phenomenon of Power Plaut and 16 Prpteetion System Iu thrs study we eonsider the eleefiqa.l energy that produced in the generating station and control generated power and Eansmission of power from one place to another and finally the power distribution among the consumers. The operation of electric power distribution systems and associated major apparatus are presented. the content include principles of power system, cabling systems, electrical power system protection and coordination, instruments and meters, operational procedure and electrical utilization systems. Actually kansmission line is a part of distribution system and line loss is also taken to consideration. 2016-02-15T00:00:00Z http://suspace.su.edu.bd/handle/123456789/241 GSM Network Management System Hossain, Md. Murad In high voltage ac system, the system voltage and frequency changes rapidly with the variation of load. The reactive power also changes with the variation of load which affbcts the system voltage therefore it is necessary to analyze the power system in order to determine system parameters and its variation under various load conditions In this thesis work, in order to get an idea about the power flow nature of the transmission system of Bangladesh,42 buses are considered. The fast decoupled method is used for analyzing the power flow of 42 buses and later MATLAB coding is used for determining the buses having problem in reference system voltage. The proposed decoupled method is faster and easier than the conventional method. For reactive power compensation, the required capacitive or inductive bank is determined by using logical flow chart. The size of the reactor bank is calculated by conventional mettrod and the thryristor based switching technique is used for connecting the reactor bank with the transmission Iine according to the system requirement. Since fast switching is required for maintaining the system voltage constant under various load conditions therefore Microcontroller is usecl for controlling the switching devices. The Microcontroller provides necessary gate pulses to the Triacs which perform the switching action for connecting eitfier the capacitor or inductor bank \Mith the system. The connected capacitor and inductor also acts as a harmonic suppressor in case of harmonic effect in the transmission line. The proposed methotl of power flow analysis and reactive power compensation can be applied io aoy complicated power system network. 2016-02-15T00:00:00Z