An inductive reactance of 10 ohms is connected in parallel with the capacitive reactance of 30 ohms. If the combination is connected in series with a 10 ohm resistance. The given voltage is 200V. *What is the total real power of the system in magnitude with unit of kW? *What is the total real power of the system in magnitude with unit of kVAR? *What is the total impedance in polar form in ohms? *What is the total real power of the system in magnitude with unit of kVA? *What is the total current in polar form in A?

An inductive reactance of 10 ohms is connected in parallel with the capacitive reactance of 30 ohms. If the combination is connected in series with a 10 ohm resistance. The given voltage is 200V. What is the total real power of the system in magnitude with unit of kW? What is the total real power of the system in magnitude with unit of kVAR? What is the total impedance in polar form in ohms? What is the total real power of the system in magnitude with unit of kVA? *What is the total current in polar form in A?

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 2.12P: The voltage v(t)=359.3cos(t)volts is applied to a load consisting of a 10 resistor in parallel with...

See similar textbooks

Similar questions

For the circuit element of Problem 2.3, calculate (a) the instantaneous power absorbed, (b) the real power (state whether it is delivered or absorbed). (c) the reactive power (state whether delivered or absorbed). (d) the power factor (state whether lagging or leading). [Note: By convention the power factor cos() is positive. If | | is greater than 90, then the reference direction for current may be reversed, resulting in a positive value of cos() ].
Let a voltage source v(t)=4cos(t+60) be connected to an impedance Z=230. (a) Given the operating frequency to be 60 Hz, determine the expressions for the current and instantaneous power delivered by the source as functions of time. (b) Plot these functions along with v(t) on a single graph for comparison. (c) Find the frequency and average value of the instantaneous 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 AN INEFFICIENT ELECTRICAL SYSTEM: HIGH POWER LOSSES, HIGH VOLTAGE DROPS IN THE ELECTRICAL EQUIPMENT, AND HIGH ELECTRICITY BILLS. TO REDUCE POWER LOSSES AND TO REDUCE THE ELECTRICITY BILL, POWER FACTOR CORRECTION IS TO BE OF HIGH IMPORTANCE AND CONSIDERATION. ANSWER: CITE A STEP BY STEP SUMMARY OF HOW TO DETERMINE THE POWER FACTOR CORRECTION REQUIRED IN THE GIVEN PROBLEM TO ARRIVE AT THE ALTERNATIVE THAT SHALL BE SYSTEMATICALLY CARRIED OUT TO GUARANTEE A SUCCESSFUL DECISION IMPLEMENTATION,
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. In this regard, the owner requested to prepare a summary report consisting of the following details: A rightful power phasor diagram.
Find the following: the power drawn by the 100ohm variable resistor If the variable resistor is set to 200-ohms, instead of 100-ohms, What is the power drawn by the 200-ohms resistor? total current of the system Is the circuit inductive, capacitive, or neither (resistive)? NOTE: Polar form for Voltage & Current. Rectangular form for Impedance
Type your question here A power plant has to meet the following load demand: Load A: 100 MW from 8 AM - 6 PM Load B: 150 MW from 6 AM - 10 AM Load C: 50 MW from 6 AM - 10 AM Load D: 20 MW from 10 AM - 6 AM Plot the daily load curve and determine (a) diversity factor (b) load factor (c) daily energy produced.
A network is supplied by a 120 V rms, 60-Hz voltage source. An ammeter and a wattmeter indicate that 12 A rms is drawn from the source and 800 W are consumed by the network. Determine: a. The network power factor b. The network phase angle c. The network impedance d. The equivalent resistance and reactance of the network
A residential four-wire system supplies power at 220 V rms to the following single-phase appliances: On the first phase, there are ten 60-W bulbs. On the second phase, there is a 1-kW vacuum cleaner with a power factor of 0.9. On the third phase, there are ten 23-W compact fluorescent lamps with power factor of 0.61. Find a. The current in the neutral wire. b. The real, reactive, and apparent power for each phase.
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. With this condition, the substation is considering of two alternatives namely: Alternative A: To increase the capacity of the substation Alternative B: To add shunt power capacitor In this regard, the owner requested to prepare a summary report consisting of the following details: 1. A rightful power phasor diagram.
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 AN INEFFICIENT ELECTRICAL SYSTEM: HIGH POWER LOSSES, HIGH VOLTAGE DROPS IN THE ELECTRICAL EQUIPMENT, AND HIGH ELECTRICITY BILLS. TO REDUCE POWER LOSSES AND TO REDUCE THE ELECTRICITY BILL, POWER FACTOR CORRECTION IS TO BE OF HIGH IMPORTANCE AND CONSIDERATION. Make a total power triangle (phasor diagram) for Alternate A additional substation capacity in KVA and Alternate B shunt capacitor in KVA
3. The voltage v(t) = 359.3 cos(wt) volts is applied to a load consisting of a 14ohm resistor in parallel with a capacitive reactance Xc = 28 ohm. Calculate (a) the instantaneous power absorbed by the resistor, (b) the instantaneous power absorbed by the capacitor, (c) the real power absorbed by the resistor, (d) the reactive power delivered by the capacitor, and (e) the load power factor.
Three loads connected in parallel across a 1000-V (RMS), 60-Hz single-phase source.Load 1: Inductive load, 125 kVA, 0.28PF laggingLoad 2: Capacitive load, 10 kW, 40 kVARLoad 3: Resistive load, 15 kWa) Determine the total kW, kvar, kva, and supply power factor.b) In order to improve the power factor to 0.8 lagging, a capacitor of negligible resistance isconnected in parallel with the above loads. Find the KVAR rating of that capacitor and thecapacitance in μf .c) Comment on the magnitude of the supply current after adding the capacitor