Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Explain Steady-State Stability?
The property of a power system that ensures that it will remain in equilibrium under both normal and abnormal conditions is known as power-system stability. Steady-state stability is concerned with slow and gradual changes, whereas transient stability is concerned with severe disturbances, such as sudden changes in load or fault conditions. The largest possible flow of power through a particular point, without loss of stability, is known as the steady-state stability limit when the power is increased gradually, and as the transient-stability limit when a sudden disturbance occurs.
For a generator connected to a system that is very large compared to its own size, the system in Figure can be used. The power-angle equation (neglecting resistances) for the system under consideration becomes
where δgs is the angular difference between δg and δs , and X = Xd + Xe, with Xd being the direct-axis reactance of the synchronous generator. The power angle characteristic given by Equation is plotted in Figure. The peak of the power-angle curve, given by Pmax, is known as the steady-state power limit, representing the maximum power that can theoretically be transmitted in a stable manner. A machine is usually operated at less than the power limit, thereby leaving a steady-state margin, as otherwise even a slight increase in the angle δgs would lead to instability. Installing parallel transmission lines.
Q. A bandpass filter circuit is shown in Figure. Develop a PSpice program and use PROBE to obtain a Bode magnitude plot for the transfer function ¯H(f) = ¯Vout/ ¯Vin for frequency
Q. Advantages of subscriber loops signalling? (i) Information can be exchange between processors much more faster than when channel associated signalling is used. (ii) As a
Once you are happy with the biasing components you will need to disable the DC simulation component and enable the SP component. (Right click the component and then select the "com
Explain the ASCII Character Set? Most programming languages have a means of defining a character as a numeric code and, conversely, converting the code back to the character. ASC
Q. Illustrate Nodal-Voltage Method ? A set of node-voltage variables that implicitly satisfy the KVL equations is selected in order to formulate circuit equations in this nodal
Q. A 20-kVA, 2200:220-V, 60-Hz, single-phase transformer has these parameters: Resistance of the 2200-V winding R1 = 2.50 Resistance of the 220-V winding R2 = 0.03 Lea
Use PSpice to solve for the amplitude and phase of the current and the voltage across the inductor in the circuit shown in Figure(a).
Q. A current i(t) = 20 cos(2π × 60)t A flows through a wire. Find the charge flowing, and the number of electrons per second that are passing some point in the wire.
Program Description In the above program any two numbers can be stored in register A and B ( by replacing XX and YY). Contents of B are compared with A. If B CY = 0
Voltage Tripler and Quadrupler: Voltage Tripler an extension of the half wave voltage across each diode is 2Vm as it is for the filter capacitor circuit. It should be obvious
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd