A three-phase, full-wave half-controlled rectifier bridge circuit is operatingat a delay angle α = 67° when supplying full power. The per-phaseinductance of the coupled transformer is 2 mH. The input voltage has anrms magnitude of 230 V per phase at 50 Hz. The load current in the d.c.side is 15 A at 200 V. It is required to:(a) Obtain the drop in the d.c. voltage due to current overlap.(b) Calculate the rms secondary voltage of the transformer.(c) Calculate the overlap angle.(d) Obtain the recovery angle while the converter in operating in theinversion mode with 15 A, 200 V d.c. input.odi(e) Obtain the firing angle for the conditions in (d).d) Draw the output voltage and currentVanVbnVentbisAT, ATS STSти

Answered: A three-phase, full-wave…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Q2) A 3-phase, half-wave thyristor converter is connected through a voltage source 150 V as input voltage and used to supply resistive load of 10 2. Determine rsm voltage, rms current, ripple factor and dissipated power in the resistor R. If a = 45° and f = 50 Hz. %3D
A three-phase, full-wave half-controlled rectifier bridge circuit is operating at a delay angle a = 67° when supplying full power. The per-phase inductance of the coupled transformer is 2 mH. The input voltage has an rms magnitude of 230 V per phase at 50 Hz. The load current in the d.c. side is 15 A at 200 V. It is required to: 70 (a) Obtain the drop in the d.c. voltage due to current overlap. (b) Calculate the rms secondary voltage of the transformer. (c) Calculate the overlap angle. (d) Obtain the recovery angle while the converter in operating in the inversion mode with 15 A, 200 V d.c. input. (e) Obtain the firing angle for the conditions in (d). odi dir d) Draw the output voltage and current
A single phase Full-wave controlled rectifier is connected to center- tapped transformer that supplies 220v, 50HZ. The load resistance equal its inductive reactance. A- Find the henrys of the load when the thyristors with zero delay and the de ammeter rcads 4.2 A in the load. B- Find the average and rms output voltage at firing angle a-60 when the thyristors is forced commutation at angle 170° at the same R-L load. C- Find the average of output current at the same conditions in point (B). D- Find the form factor and ripple factor.
A load consists of XL=70 and XC=150 are connected in parallel across 120 Volt supply.The reactive power of the circuit is.......
QUESTION 3 is dc -Lac 0 f(t) = Ide T If ripple-free load current in steady-state is assumed, the input current is waveform of the single-phase full-wave rectifier may then be depicted as shown in the figure above for an ideal input transformer. With the assumption that the supply is ideal and perfectly smooth and ripple free load current, which implies an infinitely large load inductance, it is quite straightforward to obtain an analytical expression for the input current harmonics. The rectangular wave is defined as de 270 when 0< t < π when_π
C. A single phase full converter feeding RL load has the following data: source voltage 230V(RMS), SOHZ.R-2.52 L=very large, firing angle -30"f the load inductrance is large enough to make the load current constant then i Sketch the time variation of sounce voltage source current, load voltage, load current current through one thyristor and voltage across it H. Compute the average value of load voltage and load current, Derive the formula.
Consider a step up converter with a resistive load of value R5 Ohms. It is supplied by a DC power source of magnitude Vs-200 V. The switching frequency is 5 kHz and the duty cycle k is first set to 0.5 and the inductance used within the circuit has a value of L-10 mH. The switch is supposed to be ideal. The value of the inductance that would reduce the current ripple its half would be equal to: Select one: O a. None of these O b. 25 mH OC 40 mH O d. 20 mH
Part 1) Consider a step down converter with a resistive load. It is supplied by a DC power source of magnitude Vs = 160 V. The switching period is 0.25 ms and the duty cycle k is first set to 0.5. The load is resistive with R=10 Ohms. The critical value of L and the critical value of C are equal to: a. 0.625mH and 0.392uF b. 0.625mH and 0.196uF c. 0.312mH and 0.196uF d. None of these Part2) Now consider the same given but the load is an inductive load with R=10 Ohms and L=10 mH. The switch is ideal. Calculate The RMS load current Io and the RMS converter current Ir are equal to: Select one: a. 5A and 3.54A b. None of these c. 8A and 5.66A d. 12.5A and 8.84A
5. A single phase full converter connected to 230V, 50Hz is feeding a load R=1002 in series with large inductance that make the load current ripple free for firing angle of 45°. Determine the efficiency, form factor and displacement factor.
Do calculation. This is not a simulation problem
(b) A three-phase uncontrolled bridge rectifier is connected to an AC supply of 415V through a delta-star transformer as shown in the Figure. The load consists of large inductance to render a level load current of 60A at 300V. Assuming voltage drop across the power device to be 0.7V, compute the following: i) Rms value of secondary phase voltage and current; ii) Rms value of primary phase voltage and current3; iii) Transformer power rating in kVA and transformation ratio; iv) Device ratings. 本の。本の本の Load 本の。本。本の。 Figure
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