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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.
P-N Junction A p-n junction is made by joining P-type and N-type semiconductors together in extremely close contact. The word junction consider to the boundary interface
Q. Two wattmeters are used, as shown in Figure, to measure the power absorbed by a balanced delta-connected load. Determine the total power in kW, the power factor, and the per-pha
Regenerative Braking Control In this methods motor behaves like a generator and the kinetic energy of the motor and connected load is returned to the supply. If means
how many points are required to make an parabola in offset method when vertical point has 4 points
coding for vehicle tracking system using gsm in avr atmega16 microcontroller
how can yuo calculate voltage,curent basing on the meter bridge?
A common-collector (CC) amplifier is also known as an emitter follower (or a voltage follower) due to the fact that the output voltage "follows" the input by being approximately eq
Explain the ASSUME assembler directive with example ASSUME: It will be used to map the segment register names along with memory addresses. The Syntax is as g
When a machine has more than two poles, only a single pair of poles needs to be considered because the electric, magnetic, and mechanical conditions associated with every other pol
Q. Can you explain about Slew Rate? Slew (or slewing) rate is a measure of how fast the output voltage can change. It is given by the maximum value of dvo/dt , which is normall
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