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 #1, solve for the total real power if the circuit is connected across a 240V, 60Hz supply.? 3. A resistor R is connected in parallel with a 10-ohm inductive reactance. The combination is then connected in series with a 4-ohm capacitive reactance. The whole combination is connected across a 100-V, 60Hz supply. What is the value of R if the angle between the supply voltage and total current is 45 degrees?

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 #1, solve for the total real power if the circuit is connected across a 240V, 60Hz supply.? 3. A resistor R is connected in parallel with a 10-ohm inductive reactance. The combination is then connected in series with a 4-ohm capacitive reactance. The whole combination is connected across a 100-V, 60Hz supply. What is the value of R if the angle between the supply voltage and total current is 45 degrees?

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.17MCQ: Consider the load convention that is used for the RLC elements shown in Figure 2.2 of the text. A....

See similar textbooks

Similar questions

An RLC series circuit connected to a 110 – volt and 50 – cycle AC source, contains the following series resistances and reactances: R1 = 10 ohm, R2 = 15, R3 = 5 ohms, XL1 = 20 ohms, XL2 = 25 ohms, XC = 40 ohms. Find the following: a.) EQUIVALENT REACTANCE b.) TOTAL IMPEDANCE c.) VOLTAGE DROP ACROSS THE CAPACITOR d.) TOTAL INDUCTANCE IN MILLIHENRY e.) TOTAL CURRENT f.) REACTIVE POWER g.) REAL POWER DRAW THE PHASOR DIAGRAM IF POSSIBLE AND ROUND OFF TO FOUR DECIMAL PLACES
A resistor, in series with a 138-microfarad capacitor, is connected to a 60-cycle source.If the voltage drop across the capacitor is 115 volts and the power taken by the circuitis 922 watts, calculate (a) the circuit current, (b) the ohmic value of the resistor, (c) theline voltage, (d) the circuit power factor. draw the circuit diagram
A substation rated 1250 kVA is operating at full-load at 0.8 pf lagging and to carry anadditional load of 170 kW at 0.85 pf lagging. With the mentioned power factor, thesubstation is experiencing inefficient electrical system: high power losses, high voltagedrops in the electrical equipment, and high electricity bill. To reduce power losses and toreduce the electricity bill, power factor correction is to be of high importance andconsideration. With this condition, the substation is considering of two alternatives namely:Alternative A: To increase the capacity of the substationAlternative B: To add shunt power capacitor In this regard, the owner requested to prepare a summary report consisting of thefollowing details: additional substation capacity in kVA
Solve the complex power delivered by each source and show that that total is equal to the complex power absorbed by all passive elements (R, L and C) in the circuit. -Complex power delivered by the voltage source: -Complex power delivered by the current source: -Total complex power delivered by the sources: -Power absorbed by: 10ohm, j20ohm, j10ohm, -j5ohm, 20ohm  -Total power absorbed by R, L and C:
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.?
If it is connected in series with a pure resistance R with resistance R, inductance L, the current it draws with sinusoidal voltage application with an effective value of 100V is 5A. The voltage at the ends of the coil and resistance element is 80V and 30V.a-find only the power and power factor spent by the coil?b-find the power and power factor that the system consumes?c-draw the voltage triangle, impedance triangle and power triangle? Can you solve the all a, b and c options? Please
A series resistance – capacitance (R – C) circuit is connected to 230 – volt, 50 cycle AC source. The current through the resistor is 45.45 A and the power taken by the circuit is 5,000 watts. Compute the following: a.) VOLTAGE DROP ACROSS THE RESISTOR b.) POWER FACTOR ANGLE c.) CIRCUIT IMPEDANCE d.) OHMIC VALUE OF THE RESISTOR e.) CAPACITIVE REACTANCE f.) CAPACITANCE IN MICROFARAD g.) APPARARENT POWER PLS SOLVE ALL ROUND OFF TO FOUR DECIMAL PLACES
Q4. The source current in the circuit shown is in Figure 3a) What impedance should be connected across terminals a,b for maximum average powertransfer?b) What is the average power transferred to the impedance in (a)?c) Assume that the load is restricted to pure resistance. What size resistor connected across a,bwill result in the maximum average power transferred?d) What is the average power transferred to the resistor in (c)?v
Question oneA balanced star connected load comprises of 20 ohm resistance and 0.07 Henry inductance in each branch. If the load supplied with 415V at 50Hz, calculatea) the line currentb) the power factorc) the total power supplied to the load PLEASE FOLLOW THIS APPROACH TO SOLVE THE QUESTION. THANK YOUStep OneDeduce the inductive reactance.STEP TwoWrite down a rectangular expression for the impedance per branch.STEP ThreeConvert the rectangular expression into polar expression.STEP FourBecause impedance will be involved in the analysis deduce the phase voltage.STEP FiveSolve for the phase current and hence the line current.STEPVSixUse the phase angle of the current to deduce the power factor. STEP SevenFind the apparent power.
A substation rated 1250 kVA is operating at full-load at 0.8 pf lagging and to carry an additional load of 170 kW at 0.85 pf lagging. With the mentioned power factor, the substation is experiencing inefficient electrical system: high power losses, high voltage drops in the electrical equipment, and high electricity bill. To reduce power losses and to reduce the electricity bill, power factor correction is to be of high importance and consideration. Find: power phasor diagram. computation of the following: additional substation capacity in KVA shunt capacitor KVA. Which alternative is more economical if cost/kVA of additional substation capacity is $400.00 and the cost/kVA of shunt capacitor is $180?
TOPIC: Ohm's Law, Power and Generating Direct CurrentDirect Current Circuit AnalysisInductor, Capacitor, Generating Alternating Current Please Answer in complete solution: V6 R45 R2345 Itotal I2 I1 Vtotal
Two circuits, A and B, are connected in parallel to a 115V, 50Hz supply. The total current takenby the combination is 10A at unity power factor. Circuit A consists of a 10 ohm resistor and a200 microF capacitor connected in series; circuit B consists of a resistor and an inductive reactor inseries. Determine the following data for circuit B: (a) the current; (b) the impedance;(c) the resistance; (d) the reactance.[Ans. (a) 8.5A; (b) 13.53 ohm; (c) 10.73 ohm; (d) 8.24 ohm]