A three-phase bridge rectifier is required to supply an average voltage of Vdc = 230 V at a ripple-free current of ldc = 2300 A. The primary and secondary of the transformer are connected in Y. Determine the voltage and current ratings of diodes and transformer. (
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- Single phase half wave AC-AC converter has a resistance of R = 50 ohms. Input voltage is given as 230 Vrms. Transformer conversion ratio is 1:1. If T1 thyristor is triggered at 60 degrees; a)Rms output voltage? b)Output power? c)RMS load current and average load current? d)Input power factor? e)Average and RMS thyristor current?Q5. For the following center tapped transformer, show the waveform across each half of the secondary winding and across R, when a 100 V peak sine wave is applied to the primarywinding. What is the PIV rating must the diodeshave? (Use constant voltage drop model for the Silicon diode) D IN4001 OV 10 kN IN4001 DELL1a) As depicted in the figure, input voltage is 120 Volts (RMS) and diode drops are 0.7 Volts. Design this circuit with given two outputs and calculate turns ratio of transformer. i) 10 V ii) 100 V
- Q5. For the following center tapped transformer, show the waveform across each half of the secondary winding and across Ri, when a 100 V peak sine wave is applied to the primarywinding. What is the PIV rating must the diode have? (Use constant voltage drop model for the Silicon diode) D1 IN4001 R. V out OV 10 kN D2 IN4001 llleFor the given circuit below, a step down transformer gives an RMS voltage of 230 V/ 10.2-0-10.2 V with a load resistance of 2.2 Kiloohms. Assume Silicon diodes are used. Determine the Peak Inverse Voltage of the diode. D, SCT RL D. llle ண(5) Primary AC Source Transformer Secondary AC/DC Full-wave Rectifier Capaictor in Non- linear Load Figure 6 Analyse different methods of harmonics mitigation to eliminate the harmonic, which you have identify in above power system circuit. You can use harmonic filters, K or equivalent transformers or oversized neutral method depending upon the harmonic sources.
- Difference between sc and oc test in transformer...Given the center-tap fullwave rectifier circuit shown 220V 60Hz (+2) 220V:Es1-0-Es2 Es1 E$2 D1 D2 RL The transformer is rated 220V:12V-0-12V (Es1=Es2=12V) and the average current through the load RL is 400mA. Determine: (a) Average value, RMS value, and frequency of load voltage VRL. (b) Power dissipated by the load RL. (c) Average current and PIV of each diode.Q2/3-phase.E.W.C. R using center tap transformer supplies highly inductive load, find: 1. The average load voltage with and without FWD and discusses these cases. 2-lf firing angle equal to 45°, the supply voltage is240v, transformer ratio is (2/1). Calculate the DC current& voltage of this case. 3- Draw all waveforms diagram. 4- what are the difference between the type of connection (Delta or Star).
- Determine the regulation of a transformer in which thepercentage resistance drop is 1% and the percentagereactance drop is 5% when the power factor 0.8 leading.Design a DC power supply using FWR to perform the following requirements. Find V_dc, V_rms, V-ripple, PIV of the diode. draw the waveform of (V_in, V_out, L_in, I_load, V_diode and I_diode). Input voltage = 25 Transformer turn ratio 0.1 load resistance = 1k ohm Ripple factor = 0.025 Diode type =SiQ5. For the following center tapped transformer, show the waveform across each half of the secondary winding and across Ri, when a 100 V peak sine wave is applied to the primarywinding. What is the PIV rating must the diode have? (Use constant voltage drop model for the Silicon diode) IN4001 Ry OV 10k) D IN4001