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Determine the most economical cross-section for a 3-phase transmission line, 1 km long to supply at a constant voltage of 110 kV for the following daily load cycle :6 hours 20 MW at pi: 0-8 lagging12 hours 5 MW at Et 0-8 lagging6 hours 6 MW at pi: 0-8 lagging
The line is used for 365 days yearly. The cost per km of line including erection is Rs (9000 + 6000 a) where 'a' is the area of X-section of conductor in cm2. The annual rate of interest and depreciation is 10% and the energy costs 6P per kWh. The resistance per km of each conductor is 0-176/a.
(a) What are its elevation and azimuth beam widths? (b) What is the horizontal extent of the beam at a distance of 300 m?
Design a two-levelcombinational logic circuit to implement theadditionof two 2-bit numbers. Donot use half adders or full adders as building blocks forthis circuit. Rather, follow the logic circuit design process discussed in class.
Calculate the lowest 3 energy levels in a quantum well made from InAs, using the infinite potential approximation. Length of the well L = 10 nm.
Assume all the capacitors in the circuit below were discharged prior to assembly. The capacitors, resistors, and voltage sources are then arranged as shown in the circuit below. The circuit is then allowed to stabilize.
2. What is the expected output frequency of a sample and hold system if fs= finput 3. Which is input frequencies will give an output frequency of 50 Hz when put through a sample and hold system if our sampling frequency is 488 Hz
(1) The load active input power. (2) The load input reactive power at the power at the factor of 0.6 lagging. (3) The load input reactive power at a power of 0.87 lagging
Construct a horizontal line on your I versus V graph at the point I = 1 mA. This line will intersect each of the sloping lines at two separate points. Explain the significance of each of these intersections
What is the quantization signal to noise ratio SNRQ at the receiver output? e. If the SNRQ were to be raised to 96 dB, how many bits would the ADC and DAC need? What would be the bit rate on the serial link?
Given a 1-phase 50 kVA 12.47 kV pf = 0.8 lagging static load a. Modeling the load as constant complex power, determine the correct value for S and I. b. Modeling the load as constant complex impedance, determine the correct value for Z and I.
Suppose a generator is going to be connected to a big network. Why should the frequency of this generator be slightly higher than the frequency of the system.
(a) Determine a unit vector in the direction of Q at P(1, 2, 1) (b) Find the component of Q at P in the direction of PT where T is point (5, 3, -4) (c) Where is Q the same as the unit vector of \(a_{x}+11a_{y}+10a_{z}\)
Decide whether these sampling methods produce a simple random sample of students from a class of 30 students. If not, explain why not.
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