EBK ELECTRIC MOTOR CONTROL
10th Edition
ISBN: 9780100784598
Author: Herman
Publisher: YUZU
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Chapter 9, Problem 4SQ
List six factors to be considered when selecting a timing relay for a particular use.
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"I need an expert solution with detailed steps for
integration."
The normalized Far-field pattern of an antenna is given by:
E = √√sine (cosq)
Determine:
1) Beam solid angle
2) Exact Directivity
0≤0≤ 180, while 0≤≤180, and 270 ≤≤ 360
3) HPBW in both azimuth and elevation
"I need an expert solution with detailed steps for
integration."
Find Directivity, the effect aperture and aperture efficiency of the antenna, if it has physical
aperture of 2.4 x 10-2-2 and the radiation intensity can be approximated by:
U(0, 4) = (sesce
0°s0<20°
20°ses600
1.0°≤≤ 360°
Chapter 9 Solutions
EBK ELECTRIC MOTOR CONTROL
Ch. 9 - List several applications for a motor-driven...Ch. 9 - Which timer is the most commonly used in...Ch. 9 - How is a pneumatic timer adjusted?Ch. 9 - List six factors to be considered when selecting a...Ch. 9 - List several additional factors that will affect...Ch. 9 - Prob. 6SQCh. 9 - Connect these components in Figure 917: a. The...Ch. 9 - Connect the following components in Figure 918: a....
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- Don't use ai to answer I will report you answerarrow_forwardDon't use ai to answer I will report you answerarrow_forward"Can you explain the integration method to show the result?" 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 = π sin Find the approximate directivity (dimensionless and in dB) using (a) numerical integration. Use the DIRECTIVITY computer program at the end of this chapter. U sin ( sin ) sin (a) Directly Do = 14.0707 = 10log (14.0707) = 11.48 dBarrow_forward
- Don't use ai to answer I will report you answerarrow_forwardcomplete the table in the attached photos. instructions are below the tablearrow_forwardPlease 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.arrow_forward
- 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.arrow_forwardDon't use ai to answer I will report you answer.arrow_forwardDon't use ai to answer I will report you answerarrow_forward
- Need handwritten solution not using chatgptarrow_forwardHandwritten Solution pleasearrow_forwardThe 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 27arrow_forward
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