Q1Q203Find the total steel reinforcement (As) and the number of 20 mm bars that must bespread along the long direction of rectangular concrete footing of width B-2.10m whichsupports concrete column dimensions (0.4x 0.4) m. Given: D.L-900kN, L.L-800KN,qall-185kN/m², fc-21MPa, fy-400MPa.300 450Answer the following: A-Compare between the plate load test and standard penetrationtest, B-Define the disturbed samples, C- Find the depth of borehole for this case. B-2m.Dr=1.5m and qs =18ton/ m².The SPT records Versus depth are given in table below. Find qan for the raft foundationwith B x B=10x10m and Df=2m, the allowable settlement is 50mm.95 13 18 25

Answered: Q1 Q2 03 Find the total steel…

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.35P

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Analyse several voltage and current situations in different loading scenarios in a simplified radial (transformer to consumption) medium-voltage power system example. There are only 2 nodes in the 35 kV line – node 0 from the 110/35 kV and node 1 with one consumer. The physical characteristics of the line and the loading scenarios are individualized for each student – please see the attached file Excel “WM9P3 Task1 data” for your particular data set. Briefly reflect on the complexity of the calculations for known input or output voltage, as well as for fixed or voltage-dependent consumption in this simple power system model. Analyse and discuss the sensitivity of the voltage drop [in % of amplitude and the degrees of phase] with respect to the current level [in %] and to the power factor.
B2
Consider the single-Line diagram of a power system shown in Figure 3.42 with equipment ratings given: Generator G1: 50MVA,13.2kV,x=0.15p.u. Generator G2: 20MVA,13.8kV,x=0.15p.u. Three-phase -Y transformer T1: 80MVA,13.2/165YkV,X=0.1p.u. Three-phase Y- transformer T2: 40MVA,165Y/13.8kV,X=0.1p.u. Load: 40MVA,0.8PFlagging,operatingat150kV Choose a base of 100 MVA for the system and 132-kV base in the transmission-line circuit. Let the load be modeled as a parallel combination of resistance and inductance. Neglect transformer phase shifts. Draw a per-phase equivalent circuit of the system showing all impedances in per unit.
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A string of suspension consists of four (4) units. The Voltage between each pin and earth is 1/10th of the Self-Capacitance of the unit. The Voltage between the Line Conductor and earth is 130 KV. Find the Voltage distribution across each unit and the String Efficiency.

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