DC Generators
DC GENERATOR CONSTRUCTION
Rev. 0
Page 13
ES-05
Figure 8 Shunt-Wound DC Generator
DC GENERATOR CONSTRUCTION
A DC generator may be constructed in a variety of ways depending
upon the relationship and location of each of the fields. Each type of
construction contains certain advantages.
EO 1.10
DESCRIBE the differences in construction between a
shunt-wound and a series-wound DC generator with
respect to the relationship between the field and the
armature.
EO 1.11
DESCRIBE the relationship between the shunt and series
fields for cumulatively-compounded and differentially-
compounded DC generators.
EO 1.12
DESCRIBE the voltage-vs-load current characteristics for
a flat-compounded, over-compounded, and under-
compounded DC generator.
Shunt-Wound DC Generators
When the field winding of a
generator is connected in
parallel with the generator
armature, the generator is
called
a
shunt-wound
generator (Figure 8).
The excitation current in a
shunt-wound generator is
dependent upon the output
voltage
and
the
field
resistance. Normally, field
excitation is maintained
between 0.5 and 5 percent
of the total current output of
the generator.
