Question

Od. $R_{external} = 1.45 \Omega$. For a particular application, a three-phase stepper motor must be capable of stepping in $15^\circ$ increments. How many poles must it have? How many pulses per second must be supplied to the control unit of the motor to achieve a rotational speed of 500 RPM? Select one: Oa. None Ob. P = 12 poles, and $n_{pulses} = 300$ pulses per second Oc. P = 10 poles, and $n_{pulses} = 250$ pulses per second Od. P = 8 poles, and $n_{pulses} = 200$ pulses per second A 2300-V, 1000 HP, 0.8-PF leading, 60-Hz, two-pole, Y-connected synchronous motor has a synchronous reactance of 2.5 $\Omega$ and an

          Od. $R_{external} = 1.45 \Omega$.
For a particular application, a three-phase stepper motor must be capable of stepping in $15^\circ$ increments. How many poles must it have?
How many pulses per second must be supplied to the control unit of the motor to achieve a rotational speed of 500 RPM?
Select one:
Oa. None
Ob. P = 12 poles, and $n_{pulses} = 300$ pulses per second
Oc. P = 10 poles, and $n_{pulses} = 250$ pulses per second
Od. P = 8 poles, and $n_{pulses} = 200$ pulses per second
A 2300-V, 1000 HP, 0.8-PF leading, 60-Hz, two-pole, Y-connected synchronous motor has a synchronous reactance of 2.5 $\Omega$ and an

Od. Rexternal = 1.45 Ω.
For a particular application, a three-phase stepper motor must be capable of stepping in 15^∘ increments. How many poles must it have?
How many pulses per second must be supplied to the control unit of the motor to achieve a rotational speed of 500 RPM?
Select one:
Oa. None
Ob. P = 12 poles, and npulses = 300 pulses per second
Oc. P = 10 poles, and npulses = 250 pulses per second
Od. P = 8 poles, and npulses = 200 pulses per second
A 2300-V, 1000 HP, 0.8-PF leading, 60-Hz, two-pole, Y-connected synchronous motor has a synchronous reactance of 2.5 Ω and an

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