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1. A 3-φ, 500 kVA, 7.2 kV line-to-line load is to be supplied from a 13.8 kV line-to-line network using a transformer bank of two 3-φ units in parallel. The nameplate of the first transformer states: 300 kVA, 13.8/7.2 kV, 0.07 per-unit impedance; and the second nameplate states: 200 kVA, 13.8/7.2 kV, 0.04 per-unit impedance. Can the two be used to supply the above load on a continuous basis? And why?
Consider a system equation s^4 + s^3 + s^2 + 2s + 10 = 0. FInd out its Routh Table. Determine if this system is stable, marginal stable or unstable. How many roots are stable and how many roots are unstable.
A signal source is represented by a Thevenin equivalent cricuit with a source resistance Rs = 20k is connected directly to a load resistance Rl = 2k. What is the power gain in dB
A 25 MVA, three phase, 13.5kV, Y-connected, two pole, 60 Hz synchronous generator was tested by the open circuit test and short circuit test and tabulated in table 1. If the armature resistance is 0.24 ohms per phase
An AC induction motor is rated at 900 rpm, 200V, 60HZ 3-phase. If reduce the motor speed by reducing the line frequency to 20HZ, what should be the line voltage
Writea program to simulate a lottery drawing that uses balls numbered from 1 through 10. Assume that three balls are drawn at random (Userandom numbers or allow user to input the number of lotterydrawings to simulate the random ..
A radar transmits a monotone pulse of 5-s duration. Suppose the radar were redesigned so that the same pulse envelope is frequency modulated with linear FM over 100 MHz. (a) What is the possible new range resolution
Assume R1 = 1 M-ohm, R2 = 3 M-ohm, and C = 1.5 F. Also take the initial voltage across the capacitance to be VC(0) = 4 V. The voltage source VS has a voltage of 9 etV. The switch is closed at time t=0.
write a short report that analyses the pampidi.a one paragraph introduction.ii.a paragraph about the process.iii.the
Determine the minimum oxide thickness in the field region (the field-oxide thickness) needed to prevent current leakage between neighboring MOSFETs. Neglect the oxide charge, and consider aluminum gate (the worst-case scenario).
Assume we have a toroidal coil with a rectangular cross section, with an inner radius 1 cm, an outer radius 2 cm, a height of 1 cm and 1000 turns. The coil is connected to a resistor of 500 ohms. An AC current I(t) = Io cos(wt)
design your circuit using only two, three, and four input NAND gates and inverters. try to minimize the number of gates and inverters required. the variables A, B, C, AND D will be available from toggle switches.
Calculate the critical clearing angle and plot the swing curve for the machine - What is the power angle at the end of the 10 cycles?
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