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A 3-phase, wye-connected, 11.8 kV, 100 MVA turbo- generator of 0.8 power factor lagging has a synchronous reactance of 2.0 p.u. on rating. The generator is driven by a steam turbine delivering a maximum power of 90MW. It is known that the fielf current limit in a (P,Q) plane can be represented in terms of the line-to-line voltages and 3-phase powers as:
Where Emax and Pmax are the maximum induced voltage (e.m.f.) and real power respectively. Assume the generator to be ideal for convenience of analysis.
A. Sketch the capability curve clearly indicating the characteristic operating limits.
B. What is the maximum reactive power the generator can produce?
C. Can this generator supply 70 MW at 0.7 power factor lagging? Explain your answer.
#z =x1+2.5x2, with constraints, x1+x2>=2, x2 x1+x2 x1=3.question..
Define Salient-pole Rotor Construction - Synchronous Machines? Salient-pole rotor construction on the other hand, may be used for low to medium speed applications. The machines
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Use the offset diode model with a threshold voltage of 0.6 V to determine the value of v 1 for which the diode D will first conduct in the circuit of Figure(a).
I want to make project plz help me n gove me idea about actually its my first year in electrical engineering thts why Ineed help hpfully you will reply soon
History of Transistor: The great Physicist Julius Edgar Lilienfeld filed the first patent for a transistor in Canada in the year 1925, explaining a device identical to a Field
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