Loose Leaf for Fundamentals of Electric Circuits Format: LooseLeaf

6th Edition

ISBN: 9781259657054

Author: Alexander

Publisher: Mcgraw Hill Publishers

See similar textbooks

Concept explainers

Short Transmission Line

A short transmission line is a transmission line that has a length less than 80 kilometers, an operating voltage level of less than 20 kV, and zero capacitance effect.

Power Flow Analysis

Power flow analysis is a topic in power engineering. It is the flow of electric power in a system. The power flow analysis is preliminary used for the various components of Alternating Current (AC) power, such as the voltage, current, real power, reactiv…

Complex Form

A power system is defined as the connection or network of the various components that convert the non-electrical energy into the electric form and supply the electric form of energy from the source to the load. The power system is an important parameter …

Videos

Textbook Question

Chapter 12, Problem 84CP

Figure 12.76 displays a three-phase delta-connected motor load which is connected to a line voltage of 440 V and draws 4 kVA at a power factor of 72 percent lagging. In addition, a single 1.8 kVAR capacitor is connected between lines a and b, while a 800-W lighting load is connected between line c and neutral. Assuming the abc sequence and taking V_an = V_p ∠ 0 ° , find the magnitude and phase angle of currents I_a, I_b, I_c, and I_n.

Chapter 12, Problem 84CP, Figure 12.76 displays a three-phase delta-connected motor load which is connected to a line voltage

Figure 12.76

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 12, Problem 83CP

Chapter 12, Problem 85CP

Students have asked these similar questions

The length of a three-phase power transmission line with a nominal operating voltage of 69 kV is 16km. The impedance of the transmission line per unit length is 0.125 + j0.4375 ohm/ km. At the end of the line, a 70 MVA star connected load with a power factor of 0.8 back under 69 kV interphase voltage is fed. Capacitive circuit element with a capacitance of 19.14 mikro F / phase is placed as shunt at the end of the transmission line. According to these given; a) Line head voltage and current, b) Calculate the active and reactive power per line.

S.4) the length of a three-phase power transmission line with a Nominal operating voltage of 69 kV is 16km. The impedance of the transmission line per unit length is 0.125 + j0.4375 ohm/km. From the end of the line, a 56 MW star connected load is fed with a power coefficient of 0.8 back under a 64 kV interphase voltage. If the line head voltage of the transmission line is 69 kV, calculate the capacity and power of the star-connected capacitor to be shunted into the load connected to the end of the line.

A 69 – kV, 3 – phase short transmission line is 16 km long. The line has a per phase series impedance of 1.125 + j0.4375 ohm per km. Shunt capacitors are installed at the receiving end to improve the line performance. The line delivers 70 MVA, 0.80 lagging power factor at 64 kV. Determine the receiving end line real power when the sending end voltage is 69 kV.

Chapter 12 Solutions

Loose Leaf for Fundamentals of Electric Circuits Format: LooseLeaf

Ch. 12.2 - Given that Vbn=22030V, find Van and Vcn, assuming...Ch. 12.3 - A Y-connected balanced three-phase generator with...Ch. 12.4 - One line voltage of a balanced Y-connected source...Ch. 12.5 - A positive-sequence, balanced -connected source...Ch. 12.6 - In a balanced -Y circuit, Vab=44015 and ZY = (12 +...Ch. 12.7 - For the Y-Y circuit in Practice Prob. 12.2,...Ch. 12.7 - Calculate the line current required for a 30-kW...Ch. 12.7 - Assume that the two balanced loads in Fig....Ch. 12.8 - The unbalanced -load of Fig. 12.24 is supplied by...Ch. 12.8 - Find the line currents in the unbalanced...

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.