Pre-lab questions:Q1- What is the power factor?Q2- Calculate the power factor for the figure 1, where C= 15 nF.IntroductionFigure 1 shows a simple motor model consisting of a series RL network (The given values arenot realistic).C+ViLR2.2mH1000Motor Model310Figure 1+VoD

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Answered: Pre-lab questions: Q1- What is the…

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

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.4P

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80.5% O A series motor runs at (800 r.p.m) when the voltage is (400 V) and the current is (25 A). The armature resistance is (0.4 Q) and the series field resistance is (0.2 Q). Determine the resistance to be connected in series to reduce the speed to (600 r.p.m) with same current 3.85 O 4.25 2.85 O A shunt generator is running at 1000 rpm. If flux is reduced by half, then what is
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Refer here for the specifications of the D400. a) What power output should you be able to supply from the 24V D400 at 15.4 m/s? b) If the wind drops to 2 m/s, what will the output power be? c) According to the performance graph what is the maximum power you can obtain from the 24V D400? There is a possibility of installing the turbine on top of a 20m high mast instead. Assuming that Zo=0.012, what would you expect the wind speed to be at that height? Use wind shear formula and assume Vref = 7.5 m/s at a height of Zref =10 m.
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Ashunt-wound DC motor with the field coils and rotor connected in parallel (Figure 1) operates from a 130 V DC power line. The resistance of the field windings, R, is 208n. The resistance of the rotor, R, is 4.90 2. When the motor is running, the rotor develops an emf E. The motor draws a current of 4.46 A from the line. Friction losses amount to 45.0 W Part C Compute the emf E. > View Available Hint(s) undo redo Tese keyboard shortcuts Help Submit Part D Compute the rate of development of thermal energy in the field windings. Express your answer in watts. > View Available Hint(s) Temglates Symbols undo redo Teset keyboard shortcuts Help Paindings Figure 1 of 1> Submit Part E Compute the rate Pin rotor of development of thermal energy in the rotor. Express your answer in watts. Re E. R, > View Available Hint(s) Templates Symbols undo redo feset keyboard shortcuts Help Pn,rotor = W
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