A 480-V-rms 200-hp 60-Hz eight-pole delta-connected synchronous motor operates with a developed power (including losses) of 50 hp and a power factor of 90 percent leading.
Added by Ricky R.
Step 1
The formula for synchronous speed is: N_s = 120f / P where: N_s = synchronous speed (in RPM) f = frequency (in Hz) P = number of poles Substituting the given values: N_s = 120 * 60 / 8 = 900 RPM Show more…
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