Definition
A direct-current generator whose field is produced by two sets of windings on each field pole: a shunt winding connected in parallel with the armature and a series winding connected in series with the armature. The two windings work together so the generator maintains a relatively constant output voltage as the electrical load changes.
Plain English
A DC generator with two kinds of field coils working at the same time. One set keeps the voltage steady; the other set boosts the voltage when more electrical equipment is switched on. The result is a generator whose output stays fairly steady whether the load is light or heavy.
Context Anchor
Seen in aircraft electrical system descriptions, especially when comparing different types of DC generators and how they control voltage under changing electrical loads.
Derivation
Compound comes from the Latin componere, meaning to put together. The generator is called compound-wound because two different field windings are put together on the same poles to combine their effects.
Why Pilots Care
Delivers more stable voltage than simple shunt or series generators, supporting reliable power to instruments, radios, and other systems under varying loads.
Grounding Statement
When more electrical equipment is switched on, a compound-wound generator is designed to help resist a drop in voltage.
Intuition Check
Compound-wound does not mean the generator is just complicated. It means two different field windings are combined in the same generator.
Example Sentence 1
The aircraft's compound-wound generator held bus voltage steady even after the landing lights and pitot heat were switched on.
Example Sentence 2
During preflight the mechanic inspected the compound-wound generator brushes and connections for wear.