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Section 3: Generators/Alternators

Task 19) Define basic generator/alternator theory and principles

a Magnetism
b Process for producing voltage
c Faraday's law
d Stator/winding configuration (4, 10, 12)

Reference:
Wildi, Theodore (1985). Basic Electricity for Industry: Circuits and Machines. Englewood Cliffs,
New Jersey: Prentice-Hall. Chapters 5, 6, 8, 16, 17, 18

Simson, Colin (1992). Introduction to Electric Circuits and Machines. Scarborough, Ontario: Pren-
tice-Hall Canada. Chapters 8, 10

Wildi, Theodore (2004). Electrical Machines, Drives, and Power Systems, 6th Edition. Upper Saddle
River, New Jersey: Prentice-Hall. Chapters 2, 4, 13, 16

EGSA (2015). On-Site Power Generation Reference Book, Fifth Edition. Boca Raton, Florida:
Electrical Generating Systems Association. Chapters 23 - 25

Task 20) Identify types of generator/alternators

a Brush and brushless
b Self excited or PMG
c Externally excited
d Inductive

Reference:
Wildi, Theodore (1985). Basic Electricity for Industry: Circuits and Machines. Englewood Cliffs,
New Jersey: Prentice-Hall. Chapters 20, 23

Simson, Colin (1992). Introduction to Electric Circuits and Machines. Scarborough, Ontario: Pren-
tice-Hall Canada. Chapter 19

Wildi, Theodore (2004). Electrical Machines, Drives, and Power Systems, 6th Edition. Upper Saddle
River, New Jersey: Prentice-Hall. Chapter 16

EGSA (2015). On-Site Power Generation Reference Book, Fifth Edition. Boca Raton, Florida:
Electrical Generating Systems Association. Chapters 23 - 25

Task 21) Maintain/inspect excitation systems

a Inspect and/or replace
--rotating diodes
--surge suppressor
--rotor and stator
--voltage regulator

EGSA Apprentice Certification Program Study Guide - Page 20