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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.
Design a logic circuit with 4 inputs A, B, C & D that will produce output ‘1’ only whenever two adjacent input variables are 1’s. A & D are also to be treated as adjacent, impleme
Zener breakdown: Zener Breakdown takes place in very thin junction i.e. when both sides of junction layer is narrow. When a small reverse bias voltage is applied a Very strong
Give the properties and application of cotton. Cotton : It is base material for insulating fibres. Properties: It can be enhanced by impregnating with varnish. 1)
The observations from these experiments led to 'The Laws of Electromagnetic Induction' 1) 'If the magnetic flux threading through an electrical circuit changes, then an e.m.f.
Question: (a) Explain the following metrics: (i) Throughput (ii) Latency (iii) IPC (b) Of the three factors in the equation (EXCPU = Number of instructions × CPI × cy
Turn off Time This is also known as gate controlled turn on time. The time interval between a specified point at the beginning of the gate pulse and the instant wh
Q. Define Resistance Strain Gauge? Mechanical and civil engineers routinely employ the dependence of resistance on the physical dimensions of a conductor to measure strain. A s
production of electricity by pressure
Q. The following data were obtained on a 25- kVA, 2400:240-V, 60-Hz, single-phase distribution transformer: • Open-circuit test with meters on LV side: 240 V, 3.2 A, 165 W •
#Minimum 100 words accepted#explain depletion operations of MOSFET
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