Electrical machine having 5 pole-pairs is supplied with 20 Hz. Peak value of induced back-emf is 120 V. Let's assume there is (0°) zero degrees between rotor and stator and at this moment peak back-emf is induced. What will be mechanical angle between rotor and stator in 0.03 seconds from that moment? What will be an induced back-emf in 0.03 seconds? Angle between rotor and stator deg Back-emf (use positive value) V

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A: Answer -

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A:

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A:

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A:

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A:

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Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.