Please write all the formulas clearly for each case first, then solve the question by hand on paper and send a clear photo of the solution. Thanks a lot 6 A three-phase transistor voltage-source inverter supplies a three-phase load, as shown in Fig.8.41. The load consists of star connected resistance of 10 in each phase. The inverter supply voltage is 200V d.c. and each inverter switch conducts for 120°. (a) Sketch the switching signals for the six transistors. (b) Sketch the line-to-neutral voltage for one complete cycle of the output voltage. (c) Sketch the line-to-line voltage for one complete cycle of the output voltage. (d) Calculate the rms values of the first five harmonics in the line- to-line output voltage, including the fundamental. (e) Calculate the rms values of the first five harmonics in the line- to-neutral output voltage, including the fundamental. [Ans: (d) VL-L=244.95 V, (e) Vph = 141.42 V] Q1 Q3 Q5 Vdc 200V b Q4 Q6 Q2 Fig.8.41. 120° conuction ww 102 w 1052 ww n 1052

Please write all the formulas clearly for each case first, then solve the question by hand on paper and send a clear photo of the solution. Thanks a lot 6 A three-phase transistor voltage-source inverter supplies a three-phase load, as shown in Fig.8.41. The load consists of star connected resistance of 10 in each phase. The inverter supply voltage is 200V d.c. and each inverter switch conducts for 120°. (a) Sketch the switching signals for the six transistors. (b) Sketch the line-to-neutral voltage for one complete cycle of the output voltage. (c) Sketch the line-to-line voltage for one complete cycle of the output voltage. (d) Calculate the rms values of the first five harmonics in the line- to-line output voltage, including the fundamental. (e) Calculate the rms values of the first five harmonics in the line- to-neutral output voltage, including the fundamental. [Ans: (d) VL-L=244.95 V, (e) Vph = 141.42 V] Q1 Q3 Q5 Vdc 200V b Q4 Q6 Q2 Fig.8.41. 120° conuction ww 102 w 1052 ww n 1052

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...

See similar textbooks

Similar questions

The temperature dependence of resistance is also quantified by the relation R2=R1[ 1+(T2T1) ] where R1 and R2 are the resistances at temperatures T1 and T2, respectively, and is known as the temperature coefficient of resistance. If a copper wire has a resistance of 55 at 20C, find the maximum permissible operating temperature of the wire if its resistance is to increase by at most 20. Take the temperature coefficient at 20C to be =0.00382.
What is CEMF?
Explain the difference between cumulative- and differential-compounded connections.
a. What is the ampere rating of the circuits that are provided for the small-appliance loads? _____ b. What is the minimum number of small-appliance circuits permitted by the Code? _____ c. How many small-appliance circuits are included in this residence? ____
Using the rules for parallel circuits and Ohmslaw, solve for the missing values. ETE1E2E3E4ITl1I2l3l4RTR182kR275kR356kR462kPT3.436WP1P2P3P4
In an R-L parallel circuit, ET=208 volts, R=2.4k, and XL=1.8k. Find IT.
In an R-L parallel circuit, ET=480 volts, R=16, and XL=24. Find PF.
At what height are the telephone outlets in this residence mounted? Give measurement to center. _____
For residential water heaters, the Consumer Product Safety Commission suggests a maximum temperature setting of ___________ F (_____________ C). Some states have laws stating a maximum temperature setting of ____________ F (________________ C).
An office building uses a bank of 63 lead-acid cells connected in series with a capacity of 80 amp-hours each to provide battery backup for their computers. The lead-acid cells are to be replaced with nickel-metal hydride cells with a capacity of 40 amp-hours each. How many nickel-metal hydride cells will be required to replace the lead-acid cells and how should they be connected?
You are working as an electrician in a large steel manufacturing plant, and you are in the process of doing preventive maintenance on a large DC generator. You have megged both the series and shunt field windings and found that each has over 10 M to ground. Your ohmmeter, however, indicates a resistance of 1.5 across terminals S1andS2. The ohmmeter indicates a resistance of 225 between terminals F1andF2. Are these readings normal for this type machine, or is there a likely problem? Explain your answer.
From a cost standpoint, which system is more economical to install: a master amplifier distribution system or a multiset coupler? Explain the basic differences between these two systems. _______________