The shown distribution network is to supply two factories A & B with load curves indicated. Assume that both factories have a lagging power factor of 0.8 . Select the required sizes of transformers for both factories such that in the case of a failure in one transformer the overload on the remaining ones should not exceed 15%. Select the required sizes of fuses to be installed at both sides of transformers. Calculate the annual energy losses in transformers of factory A. Assuming that transformers are in operation continuously . Select the required size of the 11KV. XLPE cables for the distribution network , if cables are to be laid direct in ground with maximum ground temperature of 30° C. Calculate the annual energy losses in cables of section SA .

The shown distribution network is to supply two factories A & B with load curves indicated. Assume that both factories have a lagging power factor of 0.8 . Select the required sizes of transformers for both factories such that in the case of a failure in one transformer the overload on the remaining ones should not exceed 15%. Select the required sizes of fuses to be installed at both sides of transformers. Calculate the annual energy losses in transformers of factory A. Assuming that transformers are in operation continuously . Select the required size of the 11KV. XLPE cables for the distribution network , if cables are to be laid direct in ground with maximum ground temperature of 30° C. Calculate the annual energy losses in cables of section SA .

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Related questions

Q: Discuss the principles of load flow analysis in power systems and its applications in system…

A: Load flow analysis, also known as power flow analysis, is a mathematical approach used in power…

Q: An industrial consumer has a maximum demand of 500 kVA at 0.707 power factor and annual load factor…

Q: The indication of a lagged demand meter approaches the value of the actual load at a rate which is…

A: Concept- A lagged demand meter- The pointer is made to move in the electromechanical thermal or…

Q: For the balanced positive-sequence three-phase circuit shown below, fill the given below tables…

Q: Discuss the challenges and solutions related to integrating renewable energy sources into existing…

Q: Write about the DEVELOPMENT PERSPECTIVES FOR RENEWABLE ENERGY

A: RENEWABLE ENERGY: The energy that is derived from natural sources can be renewed again and again…

Q: Discuss the key components of a power substation and their functions in a power distribution…

A: Power substations are critical components of electrical power distribution networks. They serve as…

Q: 6. A Y-connected load with an impedance of 12 - 15 N per phase is con- nected to a balanced…

A: In this question, we need to determine the voltages , currents and powers in the load. source is…

Q: Discuss the potential benefits and challenges of integrating energy storage systems (ESS) with…

A: Discuss the potential benefits and challenges of integrating energy storage systems (ESS) with…

Q: a plant is feeding a load 1.2k feet away. the load demands 100 amps at 500V. an ac system with…

Q: In the outage replacement rate method, the repair rate is zero. Select one: True O False The…

A: We are answering all the questions. Solution of first question: Given statement is in outage…

Q: Using a simple power system model, having a Power Park Module (PPM) feeding into a transmission…

Q: Two impedances Z₁ and Z2 are connected in series to a voltage source with voltage Vs volts. Let V₁…

A: Please comment if you need any clarification. If you find my answer useful please put thumbs up.…

Q: Explore the advancements in smart grid technology and its impact on the management and control of…

A: Smart Grids are electrical grids that incorporate advanced technology and features to improve the…

Q: What is GMD in power system, explain in breif.

A: GMD is defined as the geometrical mean distance, it is used for calculating the capacitance and the…

Q: Describe the concept of microgrids in power distribution. What are the key components and benefits…

A: Microgrids are localized, smaller-scale energy systems that can operate independently or in…

Question

Sub:Distribution

The shown distribution network is to supply two factories A & B with
load curves indicated. Assume that both factories have a lagging
power factor of 0.8 .
a) Select the required sizes of transformers for both factories such
that in the case of a failure in one transformer the overload on the
remaining ones should not exceed 15% .
b) Select the required sizes of fuses to be installed at both sides of
transformers.
c) Calculate the annual energy losses in transformers of factory A.
Assuming that transformers are in operation continuously .
d) Select the required size of the 11KV. XLPE cables for the
distribution network , if cables are to be laid direct in ground with
maximum ground temperature of 30° C.
e) Calculate the annual energy losses in cables of section SA .
S
2 Km
A
3 Km
B
11/0.4 KV
Trans.
11/0.4 KV
Trans.
Factory A
PF = 0.8 lag.
Factory B
PF = 0.8 lag.
| S (KVA)
500
| (KVA)
500
400
400
300
300
200
200
100
100
Time (hr)
24
Time (hr)
24
6.
12
18
12
18
Load curve of Factory (A)
Load curve of Factory (B)

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step by step

Solved in 5 steps

SEE SOLUTION Check out a sample Q&A here

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.

Similar questions

Explain how power factor and system efficiency are related
Discuss the significance of power factor in power distribution and how power factor correction can improve system efficiency.
2. a) Explain the terms load factor and diversity factor. b) Discuss the advantages of interconnected grid system. c) A generating station is to supply four regions of load whose peak loads are 10 MW, 5 MW, 8 MW and 7 MW. The diversity factor at the station is 1-5 and the average annual load factor is 60%. Calculate: (i) the maximum demand on the station, (ii) annual energy supplied by the station and (iii) suggest the installed capacity and the number of units.
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
1- define A. Microgrid B. Distributed generation C. Discuss the advantages and disadvantages of microgrid systems over conventional power systems
2. Discuss any two methods for power factor improvement
Discuss the challenges and solutions related to renewable energy integration into existing power systems.
An RLE load is operating from a type A chopper. If the supply voltage of 600 V, L 0.08 H, E = 120 V and R = 0 . For a duty cycle of 0.3, the chopping frequency to limit the amplitude of load current excursion to 10A is Hz.
What are microgrids, and how do they differ from traditional power distribution systems? Discuss their benefits and challenges.