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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Q3) In a two-excitation and two-pole machine, the rotor and stator of both poles are prominent relations The inductor of the rotor and stator is as follows: Lss =(0.5 + 0.2cos20) H Lrr =(0.8 + 0.3cos20) H Lsr =0.7coseH The resistance of the windings is zero. If the rotor is in the position 0 =60 ° and flows from the stator A sinusoid with an effective value of 10A passes and the rotor winding is short, medium torque Calculate the impact on the rotor
A small electric vehicle is powered by a 96 .1 V battery and uses a series wound motor. It has a step-down chopper for forward drive and a step-up chopper for regenerative braking. The total armature resistance is 0.1 Q, and the armature voltage constant is 10 mV/A-rad/s. Descending a hill in regeneration mode the motor speed is 750 rev/min and the armature current is a constant average value of 80 A. Calculate the value of the duty cycle required and the .available braking power
Q9) Estimate the positon of the pointer in PMMC instrument if damping torque is absent? a. Pointer moves to full scale deflection b. Pointer does not come to rest position c. Pointer does not stop at the value of measurement d. Pointer does not move from zero
b) A newly built institution has bought a D.C. shunt generator to supply a library in order for students to study using electrical power from this machine when there is load shedding on the national grid. The total load of the library is 50 kW through the cables of total resistance of 0.04. The winding resistance of the generator is 5092 and the armature resistance is 0.072832. The library is to be supplied at 0.4kV. i. Draw the circuit diagram indicating all the above stated values. ii. Determine the load current (IL). iii.Determine the terminal voltage of the generator. iv. Determine the armature current. v.Determine the E.M.F. generated in the armature.
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
The following information is given for a 300kW, 600V, long shunt compound DC generat or, shunt field resistance is 75 ohms, armature resistance 0.01, brush resistance is 0.011 ohrms, series field resistance is 0.012 ohms and the divert or resistance of 0.036 ohms.When the machine is delivering full load; a. Draw the circuit diagrarn b. Calculate the voltage and C Power generated by the armat ure.
A 20 kW shunt machine having an Armature circuit Resistance of 0.5 N and a filed resistance of 1200, generates a terminal voltage of 240 V at full load. Find the Efficiency When act as a Generator at full load and act as a Generator at half load and act as a Motor Assume the Iron, Friction and Windage losses are 0.8 kW. I need all clear steps Please clear write
Describe the similarities in the construction of a DC motor and a DC generator. Please answer in short point wise and dont copy from other sources i will like lt
A series motor runs at 800 rev/min when the voltage is 400V and the current is 25A. The armature resistance is 0.4 ohm and the series field resistance is 0.2 ohm. Determine the resistance to be connected in series to reduce the speed to 600 rev/min with the same current.
Note: I sent the question, but there was an error in the question, which I corrected. so now I want all drawings on one sheet not every drawing on a sheet, (all three drawings on one page), thank you

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