عنوان فارسی مقاله: ماشین سنکرون
عنوان انگلیسی مقاله:
فهرست مطالب
SYNCHRONOUS MACHINES
Construction of synchronous machines
Internal generated voltage of a synchronous generator
Equivalent circuit of a synchronous generator
Phasor diagram of a synchronous generator
Measuring parameters of synchronous generator model
بخشی از مقاله
Measuring parameters of synchronous generator model
Since the unsaturated core of the machine has a reluctance thousands times lower than the reluctance of the air-gap, the resulting flux increases linearly first. When the saturation is reached, the core reluctance greatly increases causing the flux to increase much slower with the increase of the mmf.
We conduct next the short-circuit test on the synchronous generator: the generator is rotated at the rated speed, all the terminals are short-circuited through ammeters, the field current is set to zero first. Next, the field current is increased in steps and the armature current IA is measured as the field current is increased.
The plot of armature current (or line current) vs. the field current is the short-circuit characteristic (SCC) of the generator.
کلمات کلیدی:
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