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Explain Synchronous Generators?
They can be utilized to produce or absorb reactive power. An over-excited machine produces reactive power when an under-excited machine absorbs it. The generator is the major source of supply to the system of both of the positive and negative VArs. The ability to supply VArs is ascertained by the short-circuit ratio (1/ synchronous reactance).
For economic reasons, in current units this ratio is kept low and therefore the inherent ability to run at leading power factors is not large. For instance, a 200 MW, 0.85 p.f. machine with a 10% stability margin can just supply 45 MVAr at full power outputs.
Prepare a User Requirement Specification for the monitor and alarm system. User Requirements Specification should be written in a clear and unambiguous manner to state: • The
explane the special features of dual beam?
Critical Rate of Rise of Current The maximum rate of increase of current during on state which the SCR can tolerate is called the critical rate of rise of current f
Stratos Corporation is a privately held tablet semiconductor technology firm with bright growth prospects.The past 5 years have seen the firm evolve from a pure startup to a profit
Explain Inverse Discrete-Time Fourier Transform 1. Observe the same things among this formula and the inverse analogue Fourier transform: The (1/2π) factor The sign
Q. A single-line diagram of a three-phase transformer bank connected to a load is given in Figure. Find the magnitudes of the line-to-line voltages, line currents, phase voltages,
An external resistance of 10 Ω is linked to the terminal of a battery having 10 cells connected in series. Emf for every cells and internal resistance is 1.5V and 0.2Ω . Find the
Singles Phase Half wave Controlled Rectifier with RL Load When gate pulses are applied to the thyristor at output voltage v0 follows the input voltage v s ( = V m sin ) s
Q. A one-line diagram of a three-phase distribution system is given in Figure. Determine the line-to-line voltage at the sending end of the high-voltage feeder when the transformer
Memory map of tpa in a personal computer and explain such of the areas in brief
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