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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.
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Cross Section of NMOS with Channel Formed: ON state A metal-oxide-semiconductor field-effect transistor (MOSFET) is based upon the modulation of charge concentration through a
Q. Sketch the idealized (asymptotic) Bode plot for the transfer function Find the angular frequency at which H(ω) is 0dB and the angular frequency at which θ(ω) = -60°.
what is zeenar doide and explain its working
in 8085 name the 16 bit registers
The field winding of a 200 V d.c. machine has a resistance of 20? and an inductance of 500mH. Calculate: (a) The time constant of the field winding (b) The value of curr
I need I circuit that calculates f(n) = 2^2^n, where n is a 4bit number. I tried with a decoder but unsuccessfully.
Q. Determine the equivalent capacitance at terminals A-B for the circuit configurations shown in Figure.
Q. When the J and K inputs of a JKFF are tied to logic 1, this device is known as a divide-by-2 counter. Complete the timing diagram shown in Figure for this counter.
DPR PREPARATION: 1. Asset Management 2. System Operations and Despatch 3. Field Operations 4. Customer Processes 5. Corporate Processes The details covered
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