What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV ? 4 kVA 0.25 KVA 16 kVA 8 KVA
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- What is the power factor of the circuit in Question 6?Figure 5 shows a current series feedback amplifier. The sampled current signal is the output current, I, flowing in resistor, Rg, where it develops a feedback signal voltage, V across the resistor, Rg. Determine: a) the feedback gain, B = I. 1. Io the gain without feedback, A = Vs b) A c) the gain with feedback, Af 1+BACalculate average load voltage of the circuit if C=0 and a = 5 and RL= 470 ohms. 中 220V GOHZ DI FR R Vo D2
- Determine the percentage of maximum power delivered to the load resistance, when RL =3Rth20 of 20 What is the expected voltage drop across each load in this circuit? O 6 V and 6 V 11.99 V and 0.01 V O 12 V and 12 V O 0.01 V and 11.99 V 12 V 12 V O 10 Q e 90 D 10,000 Q DPLEASE DO PART C AND D ONLYTHANKS IN ADVANCE
- Calculate the total resistance ZT using the resistance value Frequency is 400hz Vs peak 5VDetermine the DC currents (la. lc and I) and dc junction voltages (Var Ver and Vca) la-Blank 1 mA, le-Blank 2 mA, I-Blank 3 mA, Var Blank 4 V, Vcr Blank 5 V and VcB - Blank 6 V Use 2 decimal places. Use the following values. VBB= 3V RB= 5kOhms Rc=232 ohms Vcc =18 V BDC=65In a resistive load, the current angle:
- Answerthe follonwing based on the 3-phase configuratio in figure 7, worksshet4. What is Ammeter A4 is measuring - A- line current, B- Phase current, C- neither "a" nor "b", D- both "a" and "b" Ammeter A5 is measuring - A- line current, B- phase current, C- neither "a" nor "b", D- both "a" and "b". Ammeter A6 is measuring - A line current, B- phase current, C-neither "a" nor "b"., D- both 'A' and "b"KANA G1 500 MVA 13.8 KV x₂ = 0.2 Xo -0.1 Bara 1 SC AY 500 MVA 13.8 KV/ 500 KV x=0.12 -0 150 Bara 2 00 www 150 St G2 150 St Bara 4 Bara 3 750 MVA 500 kV/ 18 KV x=0.1 750 MVA 18 KV x"=0.18 X2 -0.18 Xo =0.09 DL 1000 MVA 500 kV/20 kV X=0.1 G3 1000 MVA 20 kV x"=0.17 X₂ -0.2 Xo =0.09 For the power system with a single line diagram; a) By choosing the base values of 1000 MVA and 20 kV in the Generator G3 region, the system is zero, Draw the reactance diagrams of the positive and negative sequence circuits. (for each line x0 = x1 = x2 = 50 ohm) b) Find the Thevenin equivalents according to the fault condition in busbar 1.Very urgent. Draw the waveforms of the voltage at the load (RL) end, the voltage at the R end, the voltage at the L end and the current 1 when the switch K is turned to position 2 after a long enough time.