Class notes

Power Generation and Energy Conversion: Electrical Engineering

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Course
ELECTRONIC MEDICAL RECORDS

Institution
Havard School

This document is an Electrical Engineering (Power Option) assessment guide focused on Power Generation. It is designed for curriculum development, assessment, and certification. The document covers key concepts related to power generation, including different types of power stations (diesel, hydroe...

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Uploaded on March 19, 2025
Number of pages 9
Written in 2023/2024
Type Class notes
Professor(s) Ariél pakes
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071306T4EEN
ELECRICAL ENGINEERING (POWER OPTION) LEVEL 6
ENG/OS/PO/CR/10/6
Demonstrate UNDERSTANDING OF POWER GENERATION
FEBRUARY 2025.
Time: 2 Hours

TVET CURRICULUM DEVELOPMENT, ASSESSMENT AND CERTIFICATION
COUNCIL (TVET CDACC)

WRITTEN ASSESSMENT: ASSESSOR’S GUIDE
CLASS: DEPSEPT2023

INSTRUCTIONS TO CANDIDATES:
i. This paper consists of sections A and B
ii. Answer all questions in both sections
iii. Do not write on the question paper
iv. You will be provided with a separate answer booklet

This paper consists of 4 printed pages.
Candidate should check the question paper to ascertain that all pages are printed
as indicated and that no questions are missing.

SECTION A (40 MARKS)

, 1. Define the term Power station (2 marks)
It is a unit where the alternator, control and protection devices are installed for the purpose of electricity
generation.
2. In power generation, energy refers to the ability to generate electricity. This involves converting
various types of energy into electrical energy that can be easily transmitted and used. Name five
factors considered in generating plant setup (5 marks)
a. Availability of the source of power
b. The capital available
c. The security of the area
d. The available technology
e. Government policies
f. The legal aspect
g. The population of the area

3. Wind Generating stations utilize different technology to generate electricity. Outline six
classifications of wind power generating stations.
(6 marks)
i. Based on axis (a) Horizontal axis machines (b) Vertical axis machines
ii. According to size (a) Small size machines (upto 2k W) (b) Medium size machines (2 to 100k W) (c)
Large size machines (100k W and above) i. Single generator at single site ii. Multiple generators
iii. Types of output (a) DC output i. DC generator ii. Alternator rectifier (b) AC output i. Variable
frequency, variable or constant voltage AC. ii. Constant frequency, variable or constant voltage AC
iv. According to the rotational speed of the area turbines (1) Constant speed and variable pitch blades
(2) Nearly constant speed with fixed pitch blades (3) Variable speed with fixed pitch blades (a) Field
modulated system (b) Double output indication generator (c) AC-DC-AC link (d) AC commentator
generator (4) Variable speed constant frequency generating system.
v. As per utilization of output (a) Battery storage (b) Direct conversion to an electro magnetic energy
converter (c) Thermal potential (d) Inter convention with conventional electric utility guides
4. List Six Non-renewable energy power generating stations in Kenya
(6 marks)
i. Coal plant in lamu
ii. Diesel generating stations- Kipevu Mombasa,
iii. Diesel generating stations- nairobi
iv. Steam plant in Kipevu Mombasa
v. Steam plant in Mumias, muhoroni
vi. Gas power plant in mombasa

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