Chapter 5, Problem 5.30P

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complete the table in the attached photos. instructions are below the table

Please show the solution and answers in each. Thank you. A 120 MVA, 19.5 kV generator has Xₛ = 1.5 pu and is connected to a transmission line by a transformer rated 150 MVA , 230 wye/18 delta kV Watts, and X = 0.1 pu. If the base to be used in the calculation is 100 MVA, 230 kV for the transmission line. a. Find the per-unit values to be used for the transformer and generator reactances. b. If the transformer delivers 80% of its rated capacity to the line at 220 kV, express the current in per unit. c. Find also the current in the genrator in amperes.

I need an expert mathematical solution. The radiation intensity of an aperture antenna, mounted on an infinite ground plane with perpendicular to the aperture. is rotationally symmetric (not a function of 4), and it is given by U sin (77 sin 0) π sin Find the approximate directivity (dimensionless and in dB) using numerical integration. Use the DIRECTIVITY computer program at the end of this chapter.

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Handwritten Solution please

The E-field pattern of an antenna. independent of , varies as follows: E 0 0° ≤ 0≤ 45° 45°<≤ 90° 90° <8180° (a) What is the directivity of this antenna? Umax 7 why did we use this law Umax = 12 but we divided by 2? In the sent Solution = R 27