Practice problem 3.3: Calculate the mesh currents i and iz in the circuit of Figure below. Answer: i = 2/3 A, iz = 0 A. %3D 122 12 V SV ww ww
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- Given the circuit shown, answer the following questions I 40 8n I3 Vs = 24/60° v E V2 -j4 n 12 one of the following statements is correct: Choose... 12 in Ampere equals to: Choose... the equivalent impedance in Ohm of the circuit is Choose... V2 in Volts equals to: Choose...Exercise-1 Vs = 240V 60Hz Is=10A/....... Power system Is ww R 1k0 Xc=-j/(2pi60x0.00016)=-1994 XL=ZL=j2pifl=j2pi60x0.142=j53.54 142mH Is=Ir+IL+Ic=.........=Vs/Ztotal=....... 160μFFor the circuit given in Figure 1, a) Find the Thevenin equivalent circuit with respect to terminals a-b b) When a 5000 resistor is connected to terminal a-b, find the voltage on the resistor wwwwwwmm c) It will be connected to a-b terminals and its voltage on 5000 load will be 132 kV rms. What should be the capacitive reactance value that will increase it? wwwwwwwww d) What happens to the short-circuit current when the a-b terminals are short-circuited? 2+1202 000 m da 127/6 kV rms ob 1.5 +/902 000 w 12725 kV ms
- Figure 2 shows three "LC" circuits, two of them with capacitance capacitors "C" and the three with inductance coils "L", the three circuits are coupled by means of two capacitance capacitors "Cc". The currents that circulate through each mesh are those indicated in the figure: "I1", "I2" and "I3". Using Kirchhoff's law for voltages and taking into account the definition of current I = −dQ / dt, find the system of coupled equations of the system and then find the normal angular frequencies of the system.a. Using Ohm’s Law, compute the voltage and current for eachcomponent. Use the formula Z = Vt / It. b. Compute and record the magnitude and phase angle of the impedanceusing the equation Z= R + RL + jXL – JXC. Use 3uF for the value of C,1.006H for the value of L and for the resistance is computed based onthe specification of the lamp. c. Compute and record for the total power using the formula: Pcomputed = Scosθ d. Compute and record the reactive power and apparent power using theformula Scomputed = V2/ZQcomputed = √S2 − P2 e. Compute for the reactive power (measure) and apparent power(measured) using the formula.Q = PtanθS = P/ cos θ f. Compute the percent difference between the measure and the computedvalue of the impedance.A 50 Hz high voltage Schering bridge is shown in the figure. The component parameters are as follows under balanced condition: Cs-150 microfarad, C2-0.677 microfarad, R2-634 ohm, and R1-168 ohm. Find the dissipation factor of the tested material. 220V rms Lütfen birini seçin 0.1340 b.0.1672 E0051 0.0.0749 e.0.1128 88888888 00000000 25 kV rms R R₁ R₂ II (C₂ 12²
- Determine the nodal voltage V1 if l=4L25° A, and R=4 2, for the following figure: -j2 Q 20/-90° V j12 Ref. Oa. 26.56 L 72.507 V Ob. 22.56 L 68.507 V Cc. 28.56 L 74.507 V Od. 24.56 L 70.507 V When the voltage source is compared with the current source which of the fol owing is true Ca. The current source angle leads the voitage source ang e by 135 Ob. The current source angle ags the vo tage source ang e by115 Oc. The current source angle ags the voltage sourde angle by 135 Co. The current source ang e leads the vo tage source angle by115 wwConsider the following circuit used to provide power for an induative RL load. The input voltage is V-100V and the load has a 50 impedance value. The thyristor is working at a frequency fs = 2 kHz. The discharge current is to be limited to 40A and the required dv/dt is 40V/us. If the value of Ce is equal to 0.14uF, then the snubber losses are equal to: R. V. Select one: O a 5.4W O b. 7.4W 1.4W Od. 3.4W三 T AaBbCcDc AaBbCcDc AABBC T Normal 1 No Spac. Heading Paragraph Styles In the circuit pictured the current through R1 is 11 = 6A in the direction shown. a) Determine the current 14. Describe choice of node or loop (including direction of travel). b) Determine the current 13. Describe choice of node or loop (including direction of travel). c) Determine the Determine the potential difference Vgd = Vg Vd between points g and d.
- Multiply with the least common factor to remove any fractions. 12/0° V E2 Iy 1Ω j2 Ω m 1Ω 490° V E1 KVL @ loop A: K11Vx + Z12lx + Z13ly = Source1 KVL @ loop B: K21Vx+Z22lx + Z23ly = Source₂ KVL @ loop C: K31Vx + Z32lx + Z33ly = Source3 www -j4Ω j2 Ω m -j2Ω Μ ΤΩ www 41,Task 3 A three phase, four wire star connected load consisting of: ZR: a resistor of 9500 in series with a 3H inductor ZB: a resistor of 1950 ZY: a resistor of 1950 in series with a 4µF capacitor Using the equipment available in the power lab (Room T017), connect the given load to a three-phase supply available in the lab and: 3.1. Determine the current of each line and the neutral current and measure the total power supplied by the source. 3.2. Analytically, calculate all currents and the total power and compare with those obtained in measurements. 3.3. Device a method and measure the waveform of the neutral current. Discuss the obtained waveform and the reason for any distortion in the waveform 3.4. Validate your calculations using computer simulation3&page%3D1 American Uni. Girne American Uni.. O portal.gaueng.org My Profile - Zoom Dashboard My Courses This course Find the Norton equivalent of the circuit 60 30 40V ,50 202 A BI E E E E ere to search