The armature of a 8-pole d.c. generator has 960 conductors and runs at 400 rpm. The flux per pole is 40 mWb. (i) Calculate the induced emf, if the armature is lap-wound. (ii) At what speed should it be driven to generate 400 V, if the armature were wave-connected?

Q: 4. A three-phase A-connected six-pole winding is installed in 36 slots on a stator. There are 150…

A: Introduction A three-phase delta-connected system is a type of electrical power distribution…

Q: A wave wound d.c. generator has 4 poles and the armature has 756 conductors. How fast should the…

A:

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A: The Laplace Transform:- Laplace transform is yet another operational tool for solving constant…

Q: A 4 pole machine generates 250 volts when operated at 1500 rpm. If the flux per pole is 1.85 x…

A: It is given that: P=4Ea=250 voltsN=1500 rpmϕp-p=1.85×106 maxwell=1.85×106×10-8WbA=2no. of armature…

Q: A 8-pole dC generator running at 1,200 rpm, and with a flux of 25 m Wb per pole generates 440 V.…

A: Number of poles p = 8 RPM N = 1200 Flux ϕ = 25 m Wb = 0.025 mWb Voltage E = 440 V

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.