When a Load is connected to the Generator, Armature Current flows in the Winding. It produces Armature Flux. The Armature Flux combines with Main Flux to produce Resultant Flux.
The Armature Flux may oppose or aids the Main Flux depending on the type of Laod. Since the Terminal Voltage is proportional to the Resultant Flux, it also changes.
In most of the cases, the Main Flux is ahead of the Resultant Flux. In case of Pure Inductive or Capacitive Load, the Resultant Flux is aligned with the Main Flux.
When Load changes from Inductive to Capacitive, the Terminal Voltages increases.
Негізгі бет Effect of Armature Flux on Terminal Voltage in Synchronous Generator
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