The three-phase phase voltages in the 3- phase thyristor rectifier circuit in the figure are as follows * Te T A Ts Van - Vm sin (314t + 0°) V bn = Vm sin (314t – 120°) Ven - Vm sin (314t – 240°) T2 taking into account the network phase- to-phase voltage waveforms given below VAB VCA VCB BA VCB Vm AC Vm O 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240 255 270 285 300 315 330 345 360 a) Write the Natural Trigger Angles for Thyristors in the rectifier circuit in the spaces below with values between 0-360 degrees (example: 30, 330 ) Response rating for T1 ? Response rating for T2 ? Response rating for T3 ? Response rating for T4 ? Response rating for T5 ? Response rating for T6 ? b) In cases where a=75° for the thyristors in the above rectifier circuit, specify the Switches in Conduct for the following ranges in the rectifier output voltage. In the range of 45° to 90°.? keys are in transmission. Between 165° and 195° ..? keys are in transmission. switches are in conduction. In the range of 285° to 315° ... Load (A)

The three-phase phase voltages in the 3- phase thyristor rectifier circuit in the figure are as follows * Te T A Ts Van - Vm sin (314t + 0°) V bn = Vm sin (314t – 120°) Ven - Vm sin (314t – 240°) T2 taking into account the network phase- to-phase voltage waveforms given below VAB VCA VCB BA VCB Vm AC Vm O 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240 255 270 285 300 315 330 345 360 a) Write the Natural Trigger Angles for Thyristors in the rectifier circuit in the spaces below with values between 0-360 degrees (example: 30, 330 ) Response rating for T1 ? Response rating for T2 ? Response rating for T3 ? Response rating for T4 ? Response rating for T5 ? Response rating for T6 ? b) In cases where a=75° for the thyristors in the above rectifier circuit, specify the Switches in Conduct for the following ranges in the rectifier output voltage. In the range of 45° to 90°.? keys are in transmission. Between 165° and 195° ..? keys are in transmission. switches are in conduction. In the range of 285° to 315° ... Load (A)

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.30P: Reconsider Problem 3.29. If Va,VbandVc are a negative-sequence set, how would the voltage and...

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An RLC series circuit connected to a 110 – volt and 50 – cycle AC source, contains the following series resistances and reactances: R1 = 10 ohm, R2 = 15, R3 = 5 ohms, XL1 = 20 ohms, XL2 = 25 ohms, XC = 40 ohms. Find the following: a.) EQUIVALENT REACTANCE b.) TOTAL IMPEDANCE c.) VOLTAGE DROP ACROSS THE CAPACITOR d.) TOTAL INDUCTANCE IN MILLIHENRY e.) TOTAL CURRENT f.) REACTIVE POWER g.) REAL POWER DRAW THE PHASOR DIAGRAM IF POSSIBLE AND ROUND OFF TO FOUR DECIMAL PLACES
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A parallel connection of a RL branch with a C branch is connected across a 100V AC mains. At first R = 10 ohms, L = 20mH and frequency of 1000rad / s, the current measured is 2.2361A at 89.44 leading power factor. A) Determine the initial capacitance. B) However, a fault occurs on the capacitor branch making its capacitance 20% lower and a resistance of 5 ohms is detected. If this faulty circuit is rerun but at a frequency of 500 rad / s, determine the new current that will flow through the circuit.
Electrical Engineering _ Power Electronics Notes: pls try to answer in less than 30 min.
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