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Page Title:
Following basic electrical equipment - Continued |
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|  DOE-STD-1162-2003
e.
Discuss the basic operation of the various types of alternating current and direct current
motors. Include in the discussion the following elements of motor operation as applicable
to alternating current or direct current motors:
Electromagnetic force
Counter electromagnetic force
Starting current vs. running current
Starting torque slip
Current vs. load characteristics
Variable speed operation
Speed control
Motor controller circuitry
Applications of different types of motors
f.
Discuss the purposes of a transformer.
g.
Discuss the basic operation of the various types of transformers. Include in the
discussion the following elements of transformer operation and design:
Theory of operation
Magnetic coupling
Voltage/current relationships between primary and secondary windings
Purposes of a transformer
Step up vs. step down transformer design
Multiple secondary windings
Transformer tap changers
Transformer ratings
Transformer cooling requirements
Current transformers vs. potential transformers
h.
Discuss the application of specific transformer designs to the following types of
electrical/electronic circuitry:
Instrumentation power
Voltage sensing circuits
Current sensing circuits
Control circuitry power
Circuits requiring fault isolation protection
i.
Discuss application of the following as backup power supplies:
UPS inverters
Diesel generators
Motor generators
Auto transfer switches
j.
Identify and discuss the operation of the different types of electrical switchgear.
k.
Identify and discuss the operation of the different types of circuit breakers.
7
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