Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. emf produced by windings?
The time variation of emf for a single conductor corresponds to the spatial variation of air-gap flux density. By suitable winding design, the harmonics can be reduced appreciably, and the waveform of the generated emf can be made to approach a pure sine shape.
Figure shows an elementary single-phase, two-pole synchronous machine. In almost all cases, the armature winding of a synchronous machine is on the stator and the field winding is on the rotor, because it is constructionally advantageous to have the low-power field winding on the rotating member. The field winding is excited by direct current, which is supplied by a dc source connected to carbon brushes bearing on slip rings (or collector rings). The armature windings, though distributed in the slots around the inner periphery of the stator in an actual machine, are shown in Figure (a) for simplicity as consisting of a single coil of N turns, indicated in cross section by the two sides a and -a placed in diametrically opposite narrow slots. The conductors forming these coil sides are placed inslots parallel to the machine shaft and connected in series by means of the end connections.
The coil in Figure (a) spans 180° (or a complete pole pitch, which is the peripheral distance from the centerline of a north pole to the centerline of an adjacent south pole) and is hence known as a full-pitch coil. For simplicity and convenience, Figure (a) shows only a two-pole synchronous machine with salient-pole construction; the flux paths are shown by dashed lines. Figure (b) illustrates a nonsalient-pole or cylindrical-rotor construction. The stator winding details are not shown and the flux paths are indicated by dashed lines.
What are the hardware elements in the embedded systems? Hardware Elements in the Embedded Systems are as follows: (i) Power Source (ii) Clock Oscillator Circuit and Clock
'Pentium processor has a superscalar architecture'. Explain the meaning of the statement. The Pentium microprocessor is organized along with three execution units. Single execu
Normal 0 false false false EN-IN X-NONE X-NONE High Frequency Electronic Ballast
I need the solutions for this assignment
T h er e are three main types - The Shunt Connected DC motor in which the armature coils are connected in parallel with the field coils The Serie
Design a wide band pass filter with cut-off frequency f L = 400 kHz, f H = 600 kHz, and a pass-band gain = 10. The roll-off rate at the cut-off frequency should be at least 4
find current across r3 with two voltage as sources
The objective of the project is to protect damage of the DC motors. If the motor is not working it will be shown with red light, if working normally then green and if working at a
can you let me know how much it would be for the answer to a question that has 2 parts
Q. Explain about Dial Pulses? Dial pulsing (sometimes known as rotary dial pulsing) is the method basically used to transfer digits from a telephone set to the local switch. Pu
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd