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Q. Nonsalient-pole rotor construction?
The nonsalient-pole (smooth or cylindrical) rotor construction is preferred for high-speed turbine-driven alternators (known also as turbo alternators or turbine generators), which are usually of two or four poles driven by steamturbines or gas turbines. The rotors for suchmachines may be made either from a single steel forging or from several forgings shrunk together on the shaft.
The maximum value of the induced voltage is
which are identical in form to the corresponding emf equations for a transformer. The effect of a time-varying flux in association with stationary transformer windings is the same as that of the relative motion of a coil and a constant-amplitude spatial flux-density wave in a rotating machine. The space distribution of flux density is transformed into a time variation of voltage because of the time element introduced by mechanical rotation. The induced voltage is a single-phase voltage for single-phase synchronous machines of the nature discussed so far. As pointed out earlier, to avoid the pulsating torque, the designer could employ polyphase windings and polyphase sources to develop constant power under balanced conditions of operation.
uses of michelson interferometer?
i have an assignment due for submission within two days. It is all about transformer measurement manually and numerical results using Matlab.Is there anyone can do the job?
Q. Motoring mode of rotating machines? The motoring mode has electric power input and mechanical power output. The electromagnetic torque Te drives the machine against the load
Discuss causes, effect,removal
What are the advantages of modern ac generators and Integrated Drive Generators? There are two questions here. I''d really like it if somebody could help me. I''m an AE student.
The Parallel Resistance rule Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4
kindly send us the formula and C program for performance improvement of distribution system using HV/LV ratio. REGARDS ANUJ AGARWALA
Q. Consider the op-amp circuit shown in Figure and obtain expressions for the open-loop voltage gain at (a) low and (b) high frequencies. Also determine relations for the 3-dB poin
Q. Explain about Subscriber loops signalling? In a telephone network, subscriber loop signal linger lies upon the kind of a telephone instrument used. The intra exchange signal
Q. The response y(t) of a linear system to a unit-step excitation is y(t) = (4 - 10e -t + 8e -2t )u(t). (a) Find the system function. (b) Find the frequency at which the fo
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