EE3701-HIGH VOLTAGE ENGINEERING course.pptx

course overview

1. Version: MAMCET_VP-1.1 M.A.M. COLLEGE OF ENGINEERING AND TECHNOLOGY Siruganur, Tiruchirappalli – 621 105. 21-06-2024 Year & Sem. : IV Year (EEE) – VII Semester Faculty : Mr. J.Nagendran Regulation : R2017 Course Code : EE8701 UNIT : I COURSE NAME EE8701-High Voltage Engineering J.Nagendran , AP/EEE, Department of Electrical and Electronics Engineering, M.A.M. College of Engineering and Technology, Siruganur , Tiruchirappalli – 621 105.

2. GENERAL OBJECTIVE To learn about Reflection and Refraction of travelling waves To understand the basic concepts of Bewley lattice diagram 21-06-2024 J.Nagendran AP/EEE, Department of Electrical and Electronics Engineering, M.A.M. College of Engineering and Technology, Siruganur , Tiruchirappalli – 621 105.

3. SPECIFIC OBJECTVES Students will be able to Discuss about reflection and refraction of travelling waves Explain the operation of Bewley lattice diagram 21-06-2024 J.Nagendran AP/EEE, Department of Electrical and Electronics Engineering, M.A.M. College of Engineering and Technology, Siruganur , Tiruchirappalli – 621 105.

4. REFLECTION AND REFRACTION OF TRAVELLING WAVES Bewley lattice diagram from which the motion of reflected and transmitted waves and their positions at every instant can be obtained. It overcomes the difficulty of keeping track of the multiplicity of successive reflections at the various junctions. Properties of Bewley Diagram: The following are the properties of Bewley lattice diagram, All waves travel downhill, because time always increases. The positions of any wave at any time can be deduced directly from the diagram. 21-06-2024 J.Nagendran AP/EEE, Department of Electrical and Electronics Engineering, M.A.M. College of Engineering and Technology, Siruganur , Tiruchirappalli – 621 105.

5. Procedure: J.Nagendran -AP/EEE,M.A.M College of Engineering and Technology Assume T is the time taken for a wave to travel from one end to the end of line and α is the attenuation factor. Assume amplitude s unity. At time t=0, the magnitude is +1.the wave is attenuated and reaches at T with magnitude +1 × 𝛼 = + 𝛼 At time T, the wave is reflected and the amplitude is +𝛼 × 𝑎 = +𝛼 and the wave is again attunated and reaches at 2T with magnitude+α 2 At time 2T,the wave is reflected and the amplitude is +𝛼 2 × −𝑎 = −𝛼 2 and the wave is again attenuated and reaches at 3T with magnitude −𝛼 3 At time 3T, the wave is reflected and the amplitude is – 𝛼 3 × 𝑎 = −𝛼 3 and the wave is attenuated and reaches at 4T with magnitude −𝛼 4 and so on. Voltage at the receving end   = 2 𝛼 − 𝛼 3 + 𝛼 5 + ⋯ + 𝛼 2 𝑛 −1 (𝑡)

6. J.Nagendran -AP/EEE,M.A.M College of Engineering and Technology