re ig ww 30 Ω ΣΖΩ io 27 10 Ω www < 1 of 1 > {15 Ω 54Ω Σ35Ω your answer to three signcant figures and ig= 7.25 Submit μÀ Provide Feedback A Previous Answers Request Answer Part B Complete previous part(s) X Incorrect; Try Again; 28 attempts remaining ? ate units. Next >
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- Given a series circuit consisting of a DC voltage source, resistor, capacitor, inductor, and switch which closes at t=0. All elements are initially uncharged. If V=4 volts, R=64 Ohms, C=1/520 Farads, and L=8 Henries, Determine the circuit current (A,B,H,D): i(t)=Aexp(-Bt)sin(Ht+D) amps.An impedance coil is connected in series with a fixed resistor, and a 120-V, 50-cyclesource is then impressed across the combination. If the voltage drops across the coil andthe fixed resistor are 70 and 80 V, respectively, when the circuit current is 1.4 A, calculatethe resistance and inductance of the impedance coil. PLEASE ANSWER ASAPGiven a series circuit comprised of the following element: 53.06-ohm resistor, practical inductor with internal resistance of 0.52 ohm and reactance of 39.04 ohms; and a capacitor with reactance of 19.17 ohms. Compute for equivalent impedance angle in degrees. Note: No Scientific notation. Do not round off in the middle of calculation. Use stored values. Please round off to the nearest 4 decimal places for the final answer.
- DEGREE: ELECTRICAL ENGINEERING SUBJECT/COURSE: AC CIRCUITS NOTE: Please solve in this way. 1. Please have a good handwriting, some of the answers are not readable. Thank you! 2. GIVEN.(include symbols and units) 3. REQUIRED/FIND/MISSING (with symbol/s) 4. ILLUSTRATION (Required). 5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible 6. FINAL ANSWERS must be rounded up to three decimal places PROBLEM: • A 4200 V, three-phase transmission line has an impedance of 4+j1 Ω per phase. If it supplies a load of 1MVA at 0.75 power factor lagging. Find: a. The complex power b. The powerloss in the line c. The voltage at the sending endFind the value of the resistance R and inductance L which when connected in parallelwill take the same current at the same power factor from 400 – V, 50 – Hz mains as acoil of resistance R1 = 8 ohms and an induction L1= 0.2 H from the same source ofsupply. Show that when the resistance R1 of the coil of small as compared to itsinductance L1, then R and L are respectively equal to ω2 L11 ⁄R1 and L1.TOPIC: Transmission Lines, Power Systems, and Powerplants:INSTRUCTIONS:- Answer in this format: Given, Illustration, Required Conversion, Solution, Final Answer.- Step-by-step solution, do not skip even simple calculations to avoid confusion.- If answered in written form, make sure it is readable.PROBLEM:A three-phase, three-wire, 500-V, 60-Hz source supplies a three-phase induction motor, a wye-connected capacitor bank that draws 2 KVAr per phase, and a balanced three-phase heater that draws a total of 10 kW. The induction motor is operating at its rated 75 Hp and has an efficiency and power factor of 90.5 and 89.5 percent, respectively. Determine the system KVA. 78.12 75.98 24.81 83.17
- Provide a step by step solution and a detailed illustration. Your final answer must be 5 decimal places. 1. An inductive reactance of 10 ohms is connected in parallel with a capacitive reactance of 30 ohms. If the combination is connected in series with a 10-ohm resistance, solve for the equivalent power factor of the whole combination. 2. In problem number 1, kindly solve for the total real power if the circuit is connected across a 240V, 60Hz supply.?Noloadandshortcircuittestsconductedon3φ,5HP,220volts,60Hz,1800 rpm inductionmotorgavethefollowingresults.Noloadtest:220volts,4.35 amps,244wattsShortcircuittest:Voltageof220voltsproducesacurrentof 64.5Amps;Resistanceperphase=0.545ohms,Friction,windageandcore loss=213watts.ObtaintheequivalentcircuitparametersWhen an impedance coil is connected to a 100 V, 60-Hz, ac supply, the circuit currentis 1.325 A. When it is connected to a 100 V, 30-Hz, ac supply, the circuit current is 1.741A. Find the resistance and the inductance of the impedance coil. PLEASE ANSWER ASAP
- . A power station has a connected load of 48 MW. The energy generated for the year is 61,500 MWh. If the station has a load factor of 35%, solve the demand factor of the station. Answer: 0.4179 or 41.79% Subject: Distribution System and Substation DesignA resistor of 50 ohms, a 200mH inductor, and a 1.5 x 10-4 F capacitor is connected in parallel to a 120-volt, 60 cps source. Calculate: a) the equivalent impedance b) the current in each load c) total current d) the total real, reactive, and apparent powers e) power factor.Three coils each having resistance 6 and inductance LH areconnected in delta, to a 415V, 50Hz, 3-phase supply. If the linecurrent is 30A, fine the value of L.