Van, Vbn, Vcn are the balanced three-phase voltages with positive sequence. (a) Plot the waveforms Vo, Vla, VDi with van- (b) Find the average output Vo + 1 La 4 I,- 20A 6추D 2
A four-wire wye-wye circuit has: Van=220<120, Vbn=220<0, Vcn = 220<-120 if the impedance are: ZAN = 20<60, ZBN = 30<0, ZCN = 40<30 find the neutral line.
The source is balanced and exhibits a positive phase sequence if f=60 Hz find VAN VBN and VCN a A 100/0° V (+ b B 40 22 0.2 mF п N 10 mF + с C gure 1965
5. For the Balanced 3-Phase delta () to delta (D) system below: Solve for the line to neutral voltages at the source (Van, Vbn, and Vcn), express your results in polar notation b. Draw the equivalent "one line diagram c. Solve for the line currents (laA, IbB, and IcC), express your results in polar notation d. Solve for the Delta currents IAB, IBC, and ICA, express your results in polar notation e. Solve for the line to neutral at the...
Problem5 A balanced Y-Y four-wire system has phase voltages Van-1 10L0。V, Vbn-1104200 V, Ven 1102-1200 V. The load impedance per phase is 19 +j13 2, and the line impedance per phase is 1+,2 Ω. a) Construct the a-phase equivalent circuit of the system. b) Calculate the line currents and neutral current. c) Calculate the three phase voltages at the load VAN, VBN and Vcv d) Calculate the average power per phase delivered to the Y- connected load
ECT2601/101/3/2019 TRANSISTOR BIAS CIRCUITS Question 2 Find lo. Vcn qnd V for the pnp transistor in figure 2 using the Thevenins Theorem applied o voltage divider Bias. (12) [12) VCC 12V IC Rc 3kQ R1 vc 04 2N5684G BDC 150 VB RE R2 30k0 1
Question 29 (3 points) In each case, the budget constraint moves from BC-1 to BC-2. BC BC-2 Which of the graphs in the figure reflects a decrease in the price of good X only? O graph c graph a graph d O graph b
QUESTION 3 In Figure Q3, spring BC remains in the horizontal position at all times due to the roller at C. If spring BC is unstretched with 0 0° and the bell crank achieves its equilibrium position when e 15°, answer the following (a) Draw the free body diagram (3 marks) (a) Determine the force F applied perpendicular to segment AD if the spring is stretched for 5 cm (3 marks) (b) Solve for the support reactions at pin A...
In the Y-Δ system shown in the given figure, the source is a positive sequence with Van = 490∠∠0° V and phase impedance Zp = 2 – j3 Ω. If wattmeters W1 and W2 are properly connected respectively between lines a and b and lines b and c to measure the power absorbed by the delta-connected load in the given figure, predict their readings. V an а Zp Vbn b + п Zp сп с + The reading of each...