EBK MINDTAP FOR HERMAN'S DELMAR'S STAND
7th Edition
ISBN: 9781337900614
Author: Herman
Publisher: VST
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A Flyback converter (for questions 1-3) shown below has the following parameters. Vin-100V, Vo-20v,
Po-40W, D-0.25, Fsw-250kHz
1. What is the turns ratio N1:N2 between the primary side winding and the secondary side winding?
A. NI: N2 - 5: 3
B. NI: N2 - 3:5
C. NI: N2- 5:2
D. None of the above
can someone help me out with this question 5 and pls explain clearly, tq
A Flyback converter (for questions 1-3) shown below has the following parameters. Vin-100v, Vo-20V,
Po-ioW, D-025, Fsw-250kHz
4. The magnetizing inductor at the primary side winding is 100uH, what is the peak current in the power
switch?
A. 1.8A
B. 1.6A
C. 2.1A
D. None of the above
Chapter 34 Solutions
EBK MINDTAP FOR HERMAN'S DELMAR'S STAND
Ch. 34 - Which NEC table is used to determine the full...Ch. 34 - A 5-HP single-phase motor is connected to 208...Ch. 34 - A 10-HP single-phase motor is connected to 240...Ch. 34 - A 75-HP synchronous motor is connected to a...Ch. 34 - A squirrel-cage induction motor has a nameplate...Ch. 34 - A squirrel-cage motor has a nameplate current...Ch. 34 - A 100-HP three-phase squirrel-cage induction motor...Ch. 34 - A 60-HP synchronous motor is connected to 240...Ch. 34 - Prob. 9RQCh. 34 - Both the motors and the feeder in Question 9 are...
Ch. 34 - A 30-HP squirrel-cage induction motor is connected...Ch. 34 - Refer to the preceding Practical Application. When...Ch. 34 - Refer to the first Practical Application in this...Ch. 34 - A 10-HP single-phase motor is connected to 240...Ch. 34 - A 500-HP synchronous motor is connected to 2300...Ch. 34 - A 30-HP three-phase squirrel-cage induction motor...Ch. 34 - A 75-HP synchronous motor is connected to a...Ch. 34 - Prob. 5PPCh. 34 - A 350-HP squirrel-cage induction motor is...Ch. 34 - Three squirrel-cage motors are connected to a...
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- 14.13 For controlling the speed of de motor of 150 hp rating, the following types of converters are normally used (a) single-phase full converters (b) single-phase dual converters (c) three-phase full converters (d) three-phase dual convertersarrow_forwardA freewheeling DC motor is driven with 1000 rpm and a nominal load torque of 80Nm. The field circuit resistance is 200 and the armature circuit resistance is 0.2 O. The field coils are fed with a zero degree transmission angle through a single-phase fully controlled converter connected to a single-phase 240V source. The armature circuit is fed from a single phase 400V source through another fully controlled converter. Magnetic saturation has been neglected, the motor constant is given as 0.8 V - s / A - rad. Assuming that there is no fluctuation in armature and field current, find the control angle of the converter feeding the armature at nominal load. If you want to leave the question blank, click again on the option you marked.arrow_forwardPlease answer only handwritten accepted...I will like that solution.. Please clear handwriting.. Please.. .arrow_forward
- A three phase six pulse converter having input 430 V, 50Hz supply is controlling a dc motor. Motor back EMF at 700 rpm is 400 V. Calculate firing angle of the converter when the motor is operating at 600 rpm and 0.7 times rated torque. DC motor rating: 700 rpm, 70 kW, 440 V. Type your answer here:arrow_forwardQ-1: A 1200rpm separately excited dc motor drives a rated load torque of 85NM. The field and armature resistances are 200 0 and 0.2 Q respectively. The field circuit is fed through a 1-phase semi-controlled ac-to-dc converter with zero degree firing angle. The armature circuit is fed through 1-phase fully controlled converter. Both converters are connected to 400V source. The motor voltage constant is 0.8 V-sec/A-rad. Determine the firing angle of the armature converter at rated load.arrow_forwardA 48kW, 600V, 1500 rpm separately excited dc motor is controlled by single phase semi-controlled converter. The resistance of the armature is 192 and of the field is 1450. The field circuit is controlled by a single phase fully controlled converter and its firing angle is set to 20. The AC supply voltage to the armature and field converters is a single phase 220V, 60 Hz. The voltage constant is 0.946 V/A rad/s. If the armature converter firing angle is 45 and the speed is 1200 rpm; calculate the armature current and the developed torque.arrow_forward
- I need the answer quicklyarrow_forwardQ- Select the correct answer: a- The high concentration of holes and electrons in the central junction of a thyristor decreases by the process of ................ during off transient period with a time tar. 1- Forced commutation, 2- Phase commutation, 3- Load commutation, 4- Reverse bias commutation, 5- None of previous. Power Electronics b- The non-trigger voltage of a thyristor is.............. 1- VBO, 2- VBn, 3- VGn, 4- VGD, 5- None of previous. is the limiting positive anode voltage above which thyristor may be damage. 1- PRV, 2- PFV, 3- PAV, 4- PAK, 5- None of previous. C- d- The ripple frequency in the output voltage of single-phase half-controlled bridge AC/DC converter is when a > 60°. 1- 3f, 2-6f, 3- 2f, 4- f, 5- None of previous. ********* e- The integrator in the firing circuit of 1-phase bridge AC/DC converter is necessary to have firing angle range. 1-0-90°, 2-0-120°, 3-0-180°, 4-0-360°, 5- None of previous. f The harmonic contents in an inverter can be reduced through…arrow_forwardThe three-phase full-wave converter shown below is used to rectify the three phase (Y-connection) source signals. The six Thyristor are triggered in the sequence shown. Sketch for firing angle (a=90°) the output voltage (Vo), the phase current, the current for any two Thyristor in any one leg, and the load current (Ia). Then calculate (a) Thyristor average and r.m.s current. (b) Supply average and r.m.s current. (c) The normalized average output voltage. (d) The maximum output voltage. [Vdc = [1 - cos(60+ a)] Vml T If the line-to-neutral voltages are defined as 11 T, T T STA T. Load I sin od sin() ex-> Solve the question sin(with your own hands the corresponding line-to-line voltages are √31% sin (out + ) ---√(4)arrow_forward
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