A 4-phase variable reluctance stepping motor is shown in the diagram below. The stator

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Question 4
A 4-phase variable reluctance stepping motor is shown in the diagram below. The stator
windings are coloured "orange" for phase 1, "red" for phase 2, "green" for phase 3 and "blue" for
phase 4.
9019V+
близле
$1
02 02
Choose the incorrect statement.
ΦΙ
The step angle is 15º in the half-step operation.
The motor will step anticlockwise if phase 1, phase 2, phase 3 and phase 4 are sequentially excited.
The motor will step anticlockwise if phase 1, phase 4, phase 2 and phase 3 are sequentially excited.
The stator has 8 poles and the synchronous speed is 1000 RPM at the supply frequency 50 Hz.
The rotor has 6 rotor teeth and performs 24 steps in one revolution.
Transcribed Image Text:Question 4 A 4-phase variable reluctance stepping motor is shown in the diagram below. The stator windings are coloured "orange" for phase 1, "red" for phase 2, "green" for phase 3 and "blue" for phase 4. 9019V+ близле $1 02 02 Choose the incorrect statement. ΦΙ The step angle is 15º in the half-step operation. The motor will step anticlockwise if phase 1, phase 2, phase 3 and phase 4 are sequentially excited. The motor will step anticlockwise if phase 1, phase 4, phase 2 and phase 3 are sequentially excited. The stator has 8 poles and the synchronous speed is 1000 RPM at the supply frequency 50 Hz. The rotor has 6 rotor teeth and performs 24 steps in one revolution.
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