Electrical transformer drawing

introduction ,background ,objectives and motivation ,principle of transformer ,construction, types of transformer ,application, literature review ,methodology ,drawing, result and discussion, conclusion

1. Submitted by Group name: Power of Art Group members Name & ID: Md Rakibul Haque (16172208039) Md Ali hasan ( 16172208030) Shahriar Islam (16172208007) Submitted to Al Muntasir Lecturer of textile engineering department(BUBT) Course name: Engineering drawing Course Code: EEE 206 Intake: 20 Section: 01

2. Electrical transformer drawing

3. introduction • A transformer is a static device. • The word ‘transformer’ comes form the word ‘transform’. • Transformer is not an energy conversion device, but it is device that changes AC electrical power at one voltage level into AC electrical power at another voltage level through the action of magnetic field but with a proportional increase or decrease in the current ratings., without a change in frequency. • The transformers are the basic components for the transmission of the electricity. •Transformer is used to increase the voltage at the power generating station(Step up) and used to decrease the voltage(Step down) for house hold purpose.

4. background Electrical transformers trace their lineage to the English scientist and inventor Michael Faraday and his discovery of the law of electro-magnetic induction. Also known as Faraday’s Law, the theory describes the phenomena of electrical voltage generated when a coil of wire was wrapped around an iron core. That current would flow through the iron to an opposite side (the iron was shaped not unlike a donut), and current with different voltage could be created using wire that had more or fewer turns. Thus, the electricity was  induced.  American scientist Joseph Henry is also credited with inventing the concept of electromagnetic induction.

5. Objectives and Motivation In most cases, appliances are manufactured to work under some specific voltages. Transformers are used to adjust the voltages to a proper level . Principle of transformer Construction of transformer Types of transformer Basis of construction Basis of Windings Applications

6. Principle of transformer It works on the principle of Electromagnetic Mutual Induction. Electromagnetic Mutual Induction: When the current is provided to the Primary Winding it behaves as electromagnet due to this the EMF is induced in the Secondary winding as it comes in the area having magnetic field lines due to primary Winding. Vs = Ns.dΦ / dt Vs = Secondary Winding Voltage Ns = Secondary Winding Turns .

7. Construction of transformer Laminated Core : Cores are designed not to have current in it. But still there is a leakages current Or the eddy current present in it. To minimize these current the cores are laminated. Winding : Made up of copper or aluminum coated with very Winding thin layer of insulation . Tank : The main function of conservator tank of transformer is to provide adequate space for expansion of oil inside the transformer. It is usually Cylindrical or cubical . Isolation : It is provided by using Synthetic Oil between Core and Tank . Breather : When the temperature changes occur in Transformer insulating oil, the oil expands or contracts and there an exchange of air also occurs when transformer is fully loaded. When transformer gets cooled, the oil level goes down and air gets absorbed within.

8. Types of transformer Basis of construction: core type transformer. shell type transformer. spiral core transformer. Basis of construction : Step up transformer . Step down transformer . Isolation transformer .

9. applications Uses of Electrical Transformer: The major uses of an electrical transformer include: Raising or lowering the voltage level in the circuit of an AC. Increasing or decreasing the value of an inductor or capacitor in an AC circuit. Preventing the passage of DC from one circuit to another. Isolating two electric circuits. Stepping up the voltage level at the site of power generation before the transmission and distribution can take place. Common applications of an electrical transformer include pumping stations, railways, industries, commercial establishments, windmills and power generation units

10. Literature review In 1889, Russian-born engineer Mikhail Dolivo-Dobrovolsky developed the first  three-phase transformer at the  Allgemeine Elektricitäts-Gesellschaft ( 'General Electricity Company') in Germany . In 1891, Nikola Tesla invented the Tesla coil, an air-cored, dual-tuned resonant transformer for producing very high voltages at high frequency. Audio frequency transformers ("repeating coils") were used by early experimenters in the development of the telephone.

11. methodology A power transformer design methodology using multi-objective evolutionary optimization is proposed. Using this methodology, which is tailored to be target performance design-oriented, quick rough estimation of transformer design specifics may be inferred Testing of the suggested approach revealed significant qualitative and quantitative match with measured design and performance values. Details of the proposed methodology as well as sample design results are reported in the paper.

12. Project drawing

13. Front view

14. Top view

15. Right hand side view

16. Result and discussion In our daily life, electricity has developed as a major part of a life and life without electricity is a thing that cant be imagined. Industries unquestionably need constant supply of electricity and they certainly need transformer for ducking voltage instabilities and the malfunction of some machines is due to voltage problems. A transformer is a solution for all these glitches and it has the capacity to fix it. If the industries use any specialized machines, then they don’t need to worry about transformers because high voltage transformers are designed for those specialized applications. Generally the industries use heavy current applications . So the modern industries don’t need to worry about any problems that are existing due to electricity failures and the production of the industries can able to be develop well if they have proper transformers that suits their industries .

17. conclusion Transformers play an important role in the power system. In relation of power grid transformers are true support in the hurricane. They perform dependably throughout the world safely, time after time, practically overlooked by the general public. In simple words Transformers are designed to modify an alternating current voltage that runs from one electric circuit to another through electromagnetic induction . Transformers help improve safety and efficiency of power systems by raising and lowering voltage levels as and when needed. T hey are used in a wide range of residential and industrial applications, primarily and perhaps most importantly in the distribution and regulation of power across long distances.

18. references https:// en.wikipedia.org/wiki/Transformers https:// www.cnet.com/transformers https:// www.electricalengineeringinfo.com/transformers https://www.electronics-tutorials.ws / https://www.electrical4u.com/what-is-transformer-definition-working-principle-of-transformer/#:~:text=A%20transformer%20is%20defined%20as,')%20voltage%20levels%20between%20circuits . https://medium.com/@ connecteco/role-of-the-all-important-transformer-in-a-manufacturing-facility-dc47a8d0e170