Q2/(B) The Thyristor SKAT28F is used in an application carrying half sinusoidal current of period 1mS and a peak of 10 A as shown in Fig. 1. The Thyristor may be modeled during conduction to have a constant voltage drop of 1.3 V and a dynamic resistance of 120 m2. Evaluate the average conduction loss in the device for this application. (10M) جامعة ة الفرات الاوسط التقنية • الكلية التقنية - المسيب اللجنة الامتحان الامتحانية المركزية . 10JA 0.50s 10 San Fig. 1

Three phase Bridge rectifier operated from a 380V, 50Hz source throughout three-phase Y/Y connected transformer with ration 2:1. The load current has continuous character with negligible ripples and average thyristor current of 15A. The circuit inductance per phase is 1.2mH. The rectified voltage due to overlapping angle is 90 % of that voltage when this angle is neglected. 1- How much will the voltage drop be due to circuit inductance * 2- How much will the dc average voltage Vdc(alpha) be. 3- How much will the firing angle be ? 4- The overlapping angle. 5- How much is the percentage change of the output dc power if the thyristors T2, T4 and T6 are replaced by three diodes D2, D4, D6. 6- How much will be the maximum RMS phase current for the mentioned in previous task circuit ( semi-converter). 7- If an additional of 1 mH inductances are added to the existing inductances in the phases , how much will the overlapping angle be. The dc load current is kept constant & the…

Identify the statement from the following when the inductance can have high value. a. All the given options O b. If the number of turns of the wire is more O c. If the length of the wire is longer O d. If the cross-sectional area is less

If the input voltage for the given circuit below is 220 V at 50 Hz, the load resistance (RL) is 3300 and the average output voltage is 20 V. Assume the diodes to be germanium diodes. Determine the turns ratio of the transformer used. If a capacitor of 100 µF is connected parallel to the load resistor (RL), Determine the ripple factor. D1 D2 V D3 .... D4 RL a. The turns ratio of transformer (Npri/Nsec) is b. The Ripple factor is cell rell

how to calculate the elements for the design of a PIEZOELECTRIC TILE PROTOTYPE FOR THE GENERATION OF ELECTRIC ENERGY THROUGH FOOTPASS TRAFFIC

explain in a summarized form the procedures for the calculation of elements for the construction of a PROTOTYPE OF PIEZOELECTRIC TILE FOR THE GENERATION OF ELECTRIC ENERGY THROUGH THE PEDESTRIAN TRAFFIC

I. SOLVE THE FOLLONING PROBLENS : A COPPER WIRE OF 0,3 Mm RAAUS HAS A LEN ETH OF 1. JOM- IF THE RESISTIVITY of cOpPER IS 1-7 x0 WHAT WOULD BE THE RESISTANOE OF THE WIRE? OF A 100m WIRE IS 1035 mm AND 3.7 OHMS. WHAT 2. THE DIAMETER THE REISTANCE IS IS THE CONDUCTIVITY 3. WHAT WILL BE THE VALUE OF A CAPACITOR WHEN IT HAS A CAPACITIVE REACTANCE OF 300R ANP to A 6o HZ. SUPPLY? IN FARADS IS CONNECTED 4. WHAT Is THE VALUE OF THE RESISTOR WITH THE FOLLOWING COLORS ? A. BROWN, BLACK, GOLD, REP B. BLUE YELON BROWN, SILVER PED, SILVER, BROWN, VIOET C. 5. AND t WHEN V 220V AND R= 50n WHEN I = 45 A WHEN V = 120V FIND V ANO R 80n AND AND E= 11A-

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The voltage applied to the metal grid of CRO is negative with respect to cathode. Select one: O True O False The sinusoidal current waveform having the maximum value of 30 A then the R.M.S value is Three coils each having resistance of 29 n are connected in star across 436 V, 50 Hz supply. Then the total power consumed is O 19665.10 W O 3784.66 W O 755.20 W O 226.05 W

10 V sine 90 kHz 1 kQ C1 1 nF 2. Using a Square function with 90,000 Hz in your function-generator, a 1000-ohm resistor, and a 1 nano-Farad capacitor, determine the charging time for the capacitor. Show your calculations and show the charging-discharge curve with an oscilloscope in TINKERCAD.