Thevenin Circuit Lab Report, Slides of Electrical Engineering

Download Thevenin Circuit Lab Report and more Slides Electrical Engineering in PDF only on Docsity! EXPERIMENT- 4 I. THEVENIN’S THEOREM Aim: To verify Thevenin’s theorem by using MATLAB stimulation and theoretically MATLAB Components used: Powergui, DC Voltage source, Resistors (100 Ω, 100 Ω, 220 Ω, 220 Ω, 50 Ω, 150Ω), Ammeter, Voltmeter, Display, Controlled Voltage source, Ground Procedure → Measure the current through the load resistance RL (150 Ω) → Measure open circuit voltage at CG by removing the 150 Ω resistor in the network given above. → Short circuit the existing voltage source then apply 1 voltage source across CG to find the RTh. Results ➢ Current through RL=0.006583 A (in actual circuit) ➢ VTh= 1.945 V ➢ RTh = 145.5 Ω ➢ Current in equivalent circuit =0.006582A Verification For verification of Thevenin's theorem, current through the load in original circuit should be equal to current through the load in Thevenin’s equivalent circuit. Current through RL in original circuit=0.006583A Current through RL in equivalent circuit=0.006582A #So, both currents are approximately equal verifying Thevenin’s Theorem. THEVENIN’S THEOREM 100% A __ 100-2 BOA a Sy (ec 2202 2202 so. ta To calculate Vn jus ull sumeu due Ri 2180.2. fpom oun chneuit . 100% vy 10 y, sos sy noo 2700. Vm Ga VarS + Va-0 + Va-Ve =O —‘i) 100 220~«=«100 Ya + ow 100 © 220 Adding (N) ond i» MacS + Ma + Ve Yoo 220 220 UVa=55_+ 5Vat 5M omen 16Va + 5Vp = 55 —— uW) Vy = 55> 5¥0 16 Paige wun of Vo equation i) ve (eS 100 ° 220 ss_ +_Vo oO 220 SE 80 255 Va: 552" au Va = 1:94 53V \yz 55-5 (1.9489 16 = 28295V Alte, Ne Val Ven es) 1% 53) V We wilh calcubate Ry doy when -rircutting the vabbage Aunt. oom ees rn e 2208 2102. ra Rm = [f(i00.2 11224) sudu 1004 1 220] seat 50 mm ean uP a Ry R,= 110 » 920 Ri: 275 +100 220 +100 + = s 615 2 16328 4 = 275 1 e Ry = 675 x 220 Ry, = 95:49839450 a = 145.49839-2 615 +220 rs 55 = 675%220 Isss = 9S-49839 2 Inference  Procedure → Connect the circuit as shown in the figure 3 and 4 and then measure the current i1 and i2 respectively. → Find out the value of current i in the circuit shown in figure 2. → Verify the superposition theorem from the observations. MATLAB Circuit 1) Circuit for calculating i. 2) Circuit for calculating i1. 4 1 Continuous 7 500 + 2200 2200 vissy < 3) Circuit for calculating iz, Continuous: mon << zon << tson Results pres AN T MAM, foe : 1002 ? 1000 ; 50a ; vissy Ss Ss Ss i r ? 6 — i=0.0029924 A  → i1=0.012568A → i2= -0.0095756 A We get the value of i1 and i2 and then we calculated the value of i using superposition theorem. • i1 = 0.012568 A • i2 = -0.0095756 A • i = i1 + i2 = 0.0029924 A Verification