EXERCISE STEPS: 1) Consider a 3-phase delta-star configuration with a generator and a 3-phase load. The generator supplies voltage of grid-standard 380/220v@50H2. Each load is (10+8j) n. Calculate the values given in the chart (give full formula). Table 1. Delta-star configuration Generator (source) Load Voltage Current Power Voltage Current Рower Power Power Phase Line Phase Line Active Reactive Apparent factor Phase Line Phase Line Active Reactive Apparent Factor 2) Consider the same problem with (15+15) a loads in star-delta configuration (with standard grid voltages). a. Simulate the electrical circuit b. Plot voltage and current signals of generator and loads (both phase and line, if possible) C. Measure and fill the table below (miss out the non-measurable ones in the simulator). Write down the calculations if needed. Table 2. Star-delta configuration Generator Load Voltage Current Power Voltage Current Power Power Power Phase Line Phase Line Active Reactive Apparent factor Phase Line Phase Line Active Reactive Apparent Factor

EXERCISE STEPS: 1) Consider a 3-phase delta-star configuration with a generator and a 3-phase load. The generator supplies voltage of grid-standard 380/220v@50H2. Each load is (10+8j) n. Calculate the values given in the chart (give full formula). Table 1. Delta-star configuration Generator (source) Load Voltage Current Power Voltage Current Рower Power Power Phase Line Phase Line Active Reactive Apparent factor Phase Line Phase Line Active Reactive Apparent Factor 2) Consider the same problem with (15+15) a loads in star-delta configuration (with standard grid voltages). a. Simulate the electrical circuit b. Plot voltage and current signals of generator and loads (both phase and line, if possible) C. Measure and fill the table below (miss out the non-measurable ones in the simulator). Write down the calculations if needed. Table 2. Star-delta configuration Generator Load Voltage Current Power Voltage Current Power Power Power Phase Line Phase Line Active Reactive Apparent factor Phase Line Phase Line Active Reactive Apparent Factor

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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PRELIMINARY QUESTIONS: 1) What is the phase angle between the phases in an ideal 3-phase system? 2) Show the terms phase voltage, phase current, line voltage and line current on delta and star configurations, separately (practically, show the points where these measurements should be held using a multimeter). 3) Show the basic configurations of star-star, delta-delta, star-delta, and delta-star (draw by your hand).
Discuss Fully the various methods available for transforming 3-phase voltages to higher or lower 3-phase voltages. Highlight the advantages and disadvantages of each. Include the connection diagrams.
1) What is the phase angle between the phases in an ideal 3-phase system?
Task 3 A three phase, four wire star connected load consisting of: ZR: a resistor of 9500 in series with a 3H inductor ZB: a resistor of 1950 ZY: a resistor of 1950 in series with a 4µF capacitor Using the equipment available in the power lab (Room T017), connect the given load to a three-phase supply available in the lab and: 3.1. Determine the current of each line and the neutral current and measure the total power supplied by the source. 3.2. Analytically, calculate all currents and the total power and compare with those obtained in measurements. 3.3. Device a method and measure the waveform of the neutral current. Discuss the obtained waveform and the reason for any distortion in the waveform 3.4. Validate your calculations using computer simulation
Describe the concept of three-phase power in electrical systems and its significance in power distribution.
electrical circuits eepls answer- What is the relationship between line and phase voltages of a 4-wire STAR resistive balanced load?- What is the relationship between line and phase currents of a 4-wire STAR resistive balanced load?- Illustrate the phasor diagram of a 4-wire STAR resistive balanced load.
Problem 2-9 Balanced Capacitor Circuits in Expressed in a Rotating Ref- erence Frame Three balanced (equal) capacitors are wye connected across a three phase line. Determine the equations and coresponding equivalent circuit expressing the circuit behavior of these capacitors in a freely rotating d.q reference frame. 1a(in) b(in) - a(out) -'blout) → dout)
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1. a) Sketch the phasor diagram, using current as the reference phasor, for a load consisting of a resistor and capacitor in series. b) Sketch the phasor diagram, using current as the reference phasor, for a load consisting of a resistor and inductor in series.
3:52 00 < 1. What is the relationship of voltage and current (concerning phase angle) in a pure resistive circuit? 2. What is the relationship of voltage and current (concerning phase angle) in a pure inductive circuit? 3. What is power factor? _||| ..| 9% = O
AC Circuits Current, Voltage, Power, Power Factor and Phasor Diagrams. Consider the circuit shown in Figure 3. (i) Find the total impedance ZT as seen by the voltage source. (ii) Find the total current IT supplied by the source. (iii) Sketch phasor diagram of Vs and IT and State whether IT leads or lags Vs (iv) Determine the power factor angle for the circuit. 9. L R1 1002 0.213H IT Vs R3 1502 C 12020°V 22µF 60HZ R2 50Ω Figure 3 Answers |(1) Zr = (ii) IT= (iii)
Given a single phase inductance Lm, 1 phase 12 mH, what is the mutual = inductance between stator phases? (Answer in mH.) Give me correct answer please