A three-phase uncontrolled bridge rectifier is connected to an AC supply of 415V through a delta-star transformer as shown in the Figure. The load consists of large inductance to render a level load current of 60A at 300V. Assuming voltage drop (b) across the power device to be 0.7V, compute the following: i) Rms value of secondary phase voltage and current; i) Rms value of primary phase voltage and current; iii) Transformer power rating in kVA and transformation ratio; iv) Device ratings. 4 Fo the 本。 本の 本の Load FL 本の。 本の 本の Figure

Q: 3. A sinusoidal waveform is displayed on a c.r.o. screen. The peak-to-peak distance is 5 cm and the…

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Q: Problem 1 (Rectifiers) The controlled single-phase bridge rectifier below has a 20-Ohms resistive…

A: Given data Resistance, R=20 Ω Firing/delay angle, α=45° RMS supply voltage, VRMS=120 V Supply…

Q: 3.16 A three-phase, full-wave half-controlled rectifier bridge circuit is operating at a delay angle…

A: Step 1:Delay angle, (\alpha = 67^\circ)Per-phase inductance of the transformer, (L = 2 , \text{mH} =…

Q: A buck converter, as shown in Figure Q3(i) below, is working in steady state. The output voltage and…

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Q: The sinusoidal waveform displayed by the CRO is shown in Figure below. The 'time/cm' switch is on 2…

A: Given:-Time/cm=2ms/cmvolts/cm=5 vcm

Q: Two loads are connected to your standard AC power outlet (110v, 60H2). The first load has a 60%…

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Q: A single-phase controlled bridge rectifier is supplied from 120-V (rms) at 60-Hz utility. What is…

A: Solution: Given data: Supply voltage=120B F=60Hz R(L)=24-OHM angle=121(degree) Determine : here find…

Q: Q4. The source current in the circuit shown is in Figure 3 a) What impedance should be connected…

A: Solution: Assuming the source current as 10 A with the frequency as 50 Hz.…

Q: A 500 MVA synchronous machine has H, = 5.6 MJ/MVA and a 1200 MVA machine has H₂ = 2.0 MJ/MVA. The…

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Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.