Logo
Home Study Material Contact Search
AI Chat FREE
  1. engineering
  2. electrical engineering
  3. table 1 load rating power factor lighting 41.

Table 1 Load Rating Power Factor Lighting 41.1kW 0.7 Lagging Lights 12.2 kVa 0.67 Lagging Ventilation fans 9 kVa 0.7 lagging Heat pump 18 kW 0.707 Lagging misc equipment 11.3 kVa 0.55 lagging peak...

60.1K

Verified Solution

Question

Electrical Engineering

Table 1

LoadRatingPower Factor
Lighting41.1kW0.7 Lagging
Lights12.2 kVa0.67 Lagging
Ventilation fans9 kVa0.7 lagging
Heat pump18 kW0.707 Lagging
misc equipment11.3 kVa0.55 lagging
peak charging demand209 kWunity

Calculate the following for the car park using the datafrom Table 1:

a) the maximum real power demand P (kW)

b) maximum reactive power demand Q (kVAr)

c) the total apparent power demand S (kVA)

d) also, calculate the maximum current magnitude |I| ifthe supply voltage magnitude |V| is 3.3 kV and the supply frequencyis 50 Hz.

e) Calculate the overall car park powerfactor.

f) Calculate the rating of the capacitor bank (μF)needed to improve the car park power factor to unity.

g) Calculate the new maximum current magnitude, afterpower factor correction. Again assume the supply voltage magnitudeis 3.3kV and frequency is 50 Hz.

h) Select the cable ID from Table 2 that you would useto supply the car park BEFORE AND AFTER power factor correction hasbeen applied.

i) Comment on your result.

Table 2

Cable ID

Rating (A)

Cable ID

Rating (A)

A

20

J

100

B

25

K

110

C

30

L

120

D

40

M

130

E

50

N

140

F

60

O

150

G

70

P

160

H

80

Q

170

I

90

R

180

Answer & Explanation Solved by verified expert
4.1 Ratings (528 Votes)
    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Psychology
1.2K views

How are posthumanism and animal are connected?

Psychology
1.2K views

What are some of the ways that scholars think Zoroastrianism has influenced other religions? How sound...

Physics
1.2K views

According to Charles Townes, do you find paradoxes in religion and science? Give an example for...

Basic Math
1.2K views

Assume that 80% of people are left-handed. If we select 5 people at random, find the...

Advance Math
1.2K views

8.54. Show that permutation programs are not always optimal for continuous production, that is, provide a...

General Management
1.2K views

What are some good websites to undersand Supply Chain Practices for a company like Biomarin? ......

Biology
1.2K views

5 Explain the process of synapsis

Statistics
1.2K views

Due to a manufacturing error, five cans of regular soda were accidentally filled with diet...

Calculus
1.2K views

ind the general form of the quadratic function with the vertex 3 2 and a...

Accounting
1.2K views

A cement manufacturer has supplied the following data: Tons of cement...

Accounting
1.2K views

A family friend has asked your help in analyzing the operations of three anonymous companies...

Accounting
1.2K views

During its first year of operations, Zhang's Electronics Incorporated completed the following transactions relating to...