Question
Download Solution PDFA hydraulic turbine having rated speed of 250 RPM is connected to a synchronous generator. In order to produce power at 50 Hz, the number of poles required in the generator is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Speed of synchronous generator in rpm is given by
\({N_s} = \frac{{120f}}{P}\)
Where,
F = supply frequency in Hz
P = Number of poles
Calculation:
Given-
Ns = 250 rpm,
F = 50 Hz
When hydraulic turbine is connected to synchronous generator, then both are running at same speed
∴ \(250 = \frac{{120 \times 50}}{P}\)
P = 24Last updated on May 28, 2025
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