HomeworkLib
Question

a fully controlled three phase thyristor bridge is being connected to 208vac. when the trigger delay...

a fully controlled three phase thyristor bridge is being connected to 208vac. when the trigger delay angle of the thyristor is 30 degrees , the converter delivers 300A to the load.

power delivered to the load is what KW (show all calculations )

is it A)88 B)73 C)63 D)51

engineering   Electrical-Engineering   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
a fully controlled three phase thyristor bridge is being connected to 208vac. when the trigger delay...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • (9) (10) A three-phase, half-wave, fully-controlled converter is connected to a 415 V (line) supply as...

    (9) (10) A three-phase, half-wave, fully-controlled converter is connected to a 415 V (line) supply as shown below. The load current is constant at 30 A and is independent of firing angle. (i) Sketch waveforms of supply voltage (V1), load voltage (VL), load current(iL), iT1, iT2, iT3 and voltage across thyristor T1 (VT1) (ii) (ii) If the thyristors have a forward voltage drop of 1.2 V, find (1) the mean load voltage at firing angles of 0° and 45°, (2)...

  • Fill in the blank(s) with the appropriate word(s) The three phase fully controlled bridge converter is...

    Fill in the blank(s) with the appropriate word(s) The three phase fully controlled bridge converter is obtained by replacing six _________ of an uncontrolled converter by six __________. Version 2 EE IIT, Kharagpur 7 The pulse number of a three phase fully controlled bridge converter is _________. In a three phase fully controlled converter each device conducts for an interval of __________ degrees. iv) In a three phase fully controlled converter operating in continuous conduction there are ________ different conduction...

  • 8) A three-phase thyristor controlled converter is used to drive a motor system. What is the...

    8) A three-phase thyristor controlled converter is used to drive a motor system. What is the required trigger delay angle a if the required average output DC voltage is 0.5Vm [2 points) a) 90 degrees. b) 45 degrees. c) 58.43 degrees. d) O degrees. 9) A 3-point motor starter arrangement is shown in the diagram below (1 point). Starting Resistence No volt col OFF Soft ron piece Starter handie Spring Over load release Lever Trangular iron Three Point Starter As...

  • An AC-AC converter with a thyristor connected to a 250 V (phase-neutral) and 50 Hz source...

    An AC-AC converter with a thyristor connected to a 250 V (phase-neutral) and 50 Hz source is Y-connected. It feeds a 3-phase resistor. Circuit losses are neglected. Load resistance is 10 Ω / phase, α trigger angle is ?/6rad. Accordingly a) Calculate the effective values of the output voltage, output current and output power of the converter. b) Find the total reactive and total harmonic powers for the α angle value you obtained. c) Calculate the phase shift angle, phase...

  • (a) Two three-phase, 400kV (rms), 50Hz, AC networks are connected together via a current-source HVDC link...

    (a) Two three-phase, 400kV (rms), 50Hz, AC networks are connected together via a current-source HVDC link made up of a three-phase, 12-pulse full-wave thyristor rectifier and a three-phase, 12-pulse full-wave thyristor inverter. (i) Draw the circuit diagram for this system and explain, for the rectifier stage, how the firing delay angle may be used to control the average DC voltage. (ii) Explain the main advantages of HVDC transmission compared to AC transmission. (b) An H-Bridge converter is to be used...

  • b. Consider the single-phase fully controlled of thyristor bridge rectifier supplies a load consists of R-L...

    b. Consider the single-phase fully controlled of thyristor bridge rectifier supplies a load consists of R-L load and Vee in series as shown in Figure Q2 (b). The parameters for this circuit are as follows: supply voltage is 120 Vrms at 60 Hz, DC voltage, Voe equal to 10 v. i. Sketch the waveforms for output voltage, thyristor current, diode current and output current (CO2: PO2 - 5 marks) Calculate the output voltage, Va at a = Tt/2. (CO2: PO2...

  • 1. A full-bridge three-phase SCR rectifier supplies an L-R load from a 208 V line-to-line 60...

    1. A full-bridge three-phase SCR rectifier supplies an L-R load from a 208 V line-to-line 60 Hz source. The load draws 25 kW when the SCR phase delay angle is 60°. What is the pulse number for this rectifier circuit? Plot the load power as a function of delay angle for 0° < α 75°

  • 4.) Worth 30 Points A controlled single-phase full-wave bridge rectifier has a R load (R =...

    4.) Worth 30 Points A controlled single-phase full-wave bridge rectifier has a R load (R = 20 92) and a 120 Vrms, 60 Hz AC Source. The delay angle is 45 degrees. Hint: Use the following equation for this problem. 1. " a sina MR V2 21 44 A. Determine the average current in the load. B. Determine the RMS current in the load. C. Determine the RMS source current. D. Determine the power factor. E. Validate your answers using...

  • Consider a three-phase thyristor-based AC-DC converter supplying a “superconductive inductance” of 10 H and 200 A....

    Consider a three-phase thyristor-based AC-DC converter supplying a “superconductive inductance” of 10 H and 200 A. The grid voltage is 400VLL/60Hz. A) What is the shortest time to fully charge the Inductor, from “zero energy condition?” What value of firing angle of the thyristors (α) should be used in this case? B) When the inductor is fully charged, what value of α should be used to keep it at “stand-by”? How much reactive power does the AC-DC converter absorb from...

  • Problem 3ph [10 pts]: Y-connected source: A Y-connected balanced three-phase source is feeding a ...

    Please show how this transformers problem is done. Thanks! Problem 3ph [10 pts]: Y-connected source: A Y-connected balanced three-phase source is feeding a balanced three-phase load (it doesn't matter whether the load is Y or Delta connected). The voltage and current of the source are: van (t) - 340 sin (377t + 0.5236) ia(t) 100sin (377t 0.87266) Calculate the following: (a) The rms phase voltage (Van, magnitude and phase). (b) The rms line-to-line voltage (Vab, magnitude and phase) (c) The...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT