Derive net RMS EMF induced in the stator winding, when there is an influence of 1st, 2nd harmonics.
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- For the circuit in the figure, the source has an amplitude of 2 V and a frequency of 60 Hz. In the experiment, an "Offset of 2 V will be added to it. This produces an effect equal to that of connecting a DC source. 2 V in series with the generator. Present the graph of the voltage across the resistor and capacitor, with and without a DC source in series (this would represent the use of AC coupling and DC coupling). Clearly identify each of the signs. Record amplitude and lag data. Graph only one cycle. + Vin VR R₁ 100 Ω 60 Hz 3 C₁ 220 nF + VcQ9. What is the basic principle that a cage winding can be represented by a three-phase winding? Give your explanation.Section [Section Upload answer sheets Find the following parameters of an ac voltage given by the equation v-100sin370t.Find RMS value,form factor, peak factor, average value and frequency. E Submission
- Construct the circuit in Figure 1 in the Circuit JS simulator. Note that the voltage source is given in RMS. Within Circuit JS while defining the max voltage of the voltage source include “rms” after the number to tell Circuit JS that this is a rms value. Also note that there are additional parameters when instantiating a transformer in Circuit JS. Leave these at the default values. Additionally, transformers may have problems simulating in Circuit JS. Answer the following: 1. From the simulation results, determine the power dissipated in R2 and compare to the expected value from the previous section.2. Change the transformer ratio (“Ratio” as a fraction when you “Edit…” the transformer component) to the value calculated in the previous section to provide maximum power transfer in R2. Note: In Circuit JS, Transformer Ratio = Primary/Secondary.3. Rerun the simulation, calculate the power dissipated in R2 and compare to the expected value from the previous section.4. Change the…A 5-ohm resistor is connected in series with a 25 micro-farad capacitor. A source voltage of158 volts, 50 Hz supplies the combination. Determine the following:a. Circulating currentb. Voltage across the resistorc. Voltage across the capacitord. Real power supplied by the source1- Derive expression for the output rms voltage for single phase ac voltage controller with resistive load
- The step down DC chopper uses DC source voltage V(dc) = 200 V and resistive load impedance of 10 ohm. The duty cycle is 0.4 the voltage drop across the switch may be taken as zero, Calculate : (a) Average and RMS value of output voltage. (b) Average and RMS value of output current.Verify the following property of the twiddle factor:Maz a) A sinewave is having a frequency of 50 Hz and instantaneous value of 250 Volts at 1.3 milli seconds. Find D The maximum value of sinusoidal voltage waveform and i) The value of voltage at 2.1 milli seconds. b) Determine the instantaneous equation for the voltage waveform shown in figure, if Vp=100 Volts, Time period is 10 milli seconds and 0 =40 degrees. on Vp Upload your Answers steps in the "Final Answer Submission" Link provided in the Moodle. a) (i) Maximnum value = a) (ii) Value of voltage at 2.1 ms = b) Angular frequency =
- 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).In the circuit given in the figure, T1 thyristor is triggered at 45 degrees and T2 thyristor is triggered at 210 degrees. circuit120 V, 50 Hz sinusoidal AC voltage is applied to its input. a) Draw the graph of the current flowing through the load resistor Ry.b) Find the effective value of the work flow.8. An alternator requires an excitation of 2A to produce on short circuit its full load current of 60A. The same excitation on open circuit gives an emf of 260v. If the resistance of the armature is 0.82 and the terminal voltage on full load is 11000V, find the induced emf when the pf is a) unity (Ans. 684V ) b) 0.6 leading (Ans. 533V)