Q4) A large magnet load consists of an inductance of 18.5 H and resistance of 50 2 is to besupplied from a 400 V, 50 Hz, three-phase source through a fully controlled full-wave,three-phase rectifier bridge as shown in Fig.4. It is required to:(a) Draw waveform for Vdc and Idc at firing angle of 60°(b) The power delivered to the magnet.(c) The maximum d.c. voltage Vdcmax and maximum current Idcmax which can besupplied from this rectifier,(d) The delay angle a is required to give a magnet current of 4A.TI AT5T3 ZP(r)3-phase400V 95)(1)RDC+-MagnetVac LoadT4T2 ALT6 ZFig.4

Answered: Q4) A large magnet load consists of an…

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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Question No. 24 A three phase diode bridge rectifier is feeding a constant DC current of 100 A to a highly inductive load. If three-phase, 415 V, 50 Hz AC source is supplying to this bridge rectifier then the rms value of the current in each diode, in ampere, is
1. Answer the following with "TRUE" or "FALSE" then explain why. ________a.) Charges choose the path of least resistance. Given a resistor in parallel with a diode, no current willflow through the resistor when the applied voltage exceeds the diode’s forward voltage.________b.) Since diodes are unidirectional components, it will always block AC signals e.g. pulse train,sawtooth, triangular signals.________c.) Silicon diodes typically have a forward voltage of 0.7V.
A single-phase half wave uncontrolled rectifier circuit is operating with a purely inductive load and a source voltage of 100 sin (277t) V. An ideal PMMC ammeter is connected in series with the inductive load reads 20 A. Calculate the distortion factor of the rectifier. Answer Choices: a. 0.866 b. 0.707 c. 0.577 d. 0.816
answer question 1 & 2
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A l-phase bridge rectifier has to supply power to a 300 kW, 120 V DC load. A 240 V, 60 Hz AC feeder is available, and it is desired to have peak-to-peak current ripple percentage of 10%. 1) (a) Sketch the schematic diagram for the rectifier circuit. (b) Determine the inductance for inductor and peak inverse voltage for diode used in Q1(a). (c) Sketch the output waveform for the rectifier.
92) For three- phase half-wave Controlled rectifier Shown in the figure: I- Derive. a formula for mean load Voltage. 2- Draw the wave forms of vo, Li,i, o and voltage across thyristor1 (r.) assuming highly inductive loud and d = 120 Vo
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When Vs=4290 Consider the circuit and parameters illustrated below.if a derating factor of 12% is suggested then calculate: 12) The maximum reverse voltage rating of the diodes. 13)The string efficiency of the arrangement 14)The maximum difference in leakage current of the diodes and the maximum difference in stored charge of the diodes.
Q1. A 1-Phase HALF-WAVE CONTROLLED rectifier is supplied by a A(V), 50HZ AC source to produce a B(W) output power (P.d) through a resistive load. If the firing angle is C(), Draw the equivalent circuit and briefly explained on the rectifier circuit operation. a. b. Find the efficiency of the rectifier and gives comment on your answer. The values of A, B and C are as listed in Table 1. Table 1 Student's ID A (V) B (W) С (0) ..TA DE97350 90 20 10 .. PodeVodefo.de Pin,ac Va,rmsTa.rms efficiency, n=
A sine voltage trace displayed on a screen is shown in figure. The x axis is 1unit=40 ms and y axis is 1 unit=4 v; determine the frequency of the sine wave and plot the waveform if the same is applied to input of a full wave rectifier.
The following three-phase rectifier has a three-phase source of 240 V rms line-to-line, load is a 20-92 resistance in series with a 40-mH inductance. Determine (a) the dc level of the output voltage, (b) the dc and first ac term of the load current, (c) the average and rms current in the diodes, (d) the rms current in the source, and (e) the apparent power from the source. Van + V b₁¹ + 11 Ven + UN VD₁ D₁ + a DA D3 b D6 D5 C D₂ Load Vo

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