11.5 Three single-phase transformers, each is rated at 10 kVA, 400/300 V are connected as wye-delta configuration. Compute the following: a. Rated power of the transformer bank b. Line-to-line voltage ratio of the transformer bank
Q: T = tc + td = 0.693R1C1 +0.693R2C1 = 0.693(R1 + R2)C1.......(1) f = 1 T = 1/(tc + td) . ..(2) Using…
A: l
Q: Please write down the formulation for the optimization problem shown in the image
A: The decision on where to install the Thyristor-Controlled Series Capacitor (TCSC) in an electrical…
Q: Please answer in typing format for
A: Consider opamps are ideal,First opamp is an inverting opamp amplifier,Vo' = -(3/4)Vi' (Eq1)For…
Q: For a feedback amplifier, the input impedance with loop disabled is 3.1Kohm, the input short circuit…
A: The objective of the question is to calculate the closed loop input impedance of a feedback…
Q: Calculate the Vth and Rth of following circuit across two capacitor. 6V 80 50 2mF f= 50Hz 7mF
A:
Q: For the following digital system described by the following difference equation y[n] = x[n-1]+ y[n −…
A: (iii) Poles and zeros:The roots of the denominator are the poles and that of numerator are zeros.…
Q: Please answer in typing format
A: Step 1:In order to sketch the root locus of the given transfer function we will use the open loop…
Q: Electric machines / I need a complete expert solution in handwriting for the question. Please…
A: Step 1:
Q: • A transmission line has a span of(x m)between level supports.The conductor has an effective…
A: Step 1:Step 2:
Q: Please show all steps clearly, thank you
A:
Q: Problem 5 : Find the output voltage at the 2002 resistor in both Laplace transform domain and time…
A:
Q: Please answer in typing format
A: Step 1:By applying mesh analysis,.Mesh analysis is the combination of KVL and Ohm's law. KVL states…
Q: 7.10 - A voltage source = 120/30° is connected to a circuit consisting of R = 3.5.2 in series with L…
A: Step 1:Step 2:Step 3:
Q: Please answer in typing format
A: Step 1: considering reference node as ground, re-draw the circuit so that node voltages will be…
Q: Problem 1: Determine the phasor-domain counterparts of the following quantities V₁(t) = 15 cos(4 ×…
A: Step 1: Given quantities are, V1(t)=15cos(4X103t+47o)…
Q: I am requesting help for this study question. I would like your help please.
A: Step 1: Step 2: Step 3: Step 4:
Q: CONFIDENTIAL BEJ10303 Q2 (a) In the circuit given in Figure Q2(a), (i) Find the voltage Vo (ii)…
A:
Q: R Vs L ° + C Vout For the passive RLC filter shown, R = 15 2, L = 220 mH and C = 56 μF. Determine…
A: If you have any doubts feel free to ask... Thankyou
Q: The shown sampled signal is the output of the ADC of Arduino Uno, calculate: 1- The number of…
A: Understanding the CircuitIdentify the Components:Look for common digital logic components like AND…
Q: 422 Find the equivalent resistance of the combination of resistors shown in the figure below. (R₁ =…
A: Step 1:Step 2:
Q: CONVERT THE FLOWCHART INTO MNEMONIC ASSEMBLY INSTRUCTIONS.
A: Converting a flowchart into mnemonic assembly instructions involves interpreting the flowchart's…
Q: 8.19 A triangular loop is placed in the x-z plane, as shown in Figure 8.39. Assume that a de current…
A: Step 1:
Q: Design an oscillator with an amplifier with gain of 12 and phase angle of 192 degrees. The feedback…
A: The objective of the question is to find the phase shift of each phase shifter in an oscillator…
Q: Choose [T]rue or [F]alse for the following statements k) F l) T m) T n) T o) T Can you check if my…
A: k) False. For a sine wave,Vrms=2Vml) True. Phasor notation isv=Rmsvalue∠phase=V∠θm) True. For a…
Q: A three-phase transformer is rated 1,000 MVA, 240 Y/24 A kV. The Y-equivalent short-circuit…
A: Step 1:
Q: Please answer in typing format
A: Step 1: Step 2: Step 3: Step 4:
Q: I need the expert solution handwritten in full for the question, not an explanation.
A: Step 1:Step 2:
Q: 44. Determine V, for the network of Fig. 8.86 if V; = 4 mV, VGS(Th) = 4 V, and Ip(on) with VGS(on)…
A: If you are having doubt in any step please comment here. Thank you
Q: Problem Description Material A and Material B are collected in a tank. These materials are mixed for…
A: Step 1: Problem Description Material A and Material B are collected in a tank. These materials are…
Q: This is a practice problem from the Engineering Electromagnetics course in my Electrical Engineering…
A: Step 1: Write the given dataUniform magnetic field density is Velocity of slider, Now, length of…
Q: The truth table for a boolean function F(w,x,y,z) is provided below. What is the optimized sum of…
A: Step 1:Here we have formed 2 groups each of size 4. Now, we are writing the expression which is…
Q: thank u!! anything helps
A:
Q: Voltage divider bias provides very stable Q point when designed properly. ○ True ○ False
A: The objective of the question is to verify the statement that a properly designed voltage divider…
Q: Can you check if my answer is correct ZT = 720.46Ω∠43.92° Is(p-p) = 11.1mA∠-43.92° IL(p-p) =…
A: Step 1:Step 2:Step 3:
Q: 31. For the circuit of Figure 2.7.17, determine the applied voltage and the voltages across each…
A: Step 1: Step 2: Step 3: Step 4:
Q: Please answer in typing format
A: Given waveform is a cosine function,- Amplitude = 4 V- Period = 2 s V(t) = 4cos(πt)…
Q: I need the expert solution handwritten in full for the question, not an explanation.
A: Step 1:Step 2:
Q: (1-20) In a PCM system, SNR is to be held to minimum of 40dB. Determine the number of required…
A: To determine the number of quantizing levels \( L \) required to achieve a minimum…
Q: Please answer in typing format for
A: The given circuit consists of three capacitors connected in parallel, with values of 1F, 5F, and 8F,…
Q: Q1) A) Draw the root locus of the system represented by the following transfer function; G(S)= k…
A:
Q: Subject: Digital signal processing (DSP)
A: Step 1:
Q: True or False: Current lags voltage in a capacitor.
A: The question is asking whether the current in a capacitor lags behind the voltage. In other words,…
Q: Choose [T]rue or [F]alse for the following statements k) F l) T m) T n) T o) T Can you check if my…
A:
Q: Please, help with this problem. Answer ASAP
A: Step 1: here we have solved for question a Step 2: here we have solved for question b Step 3: don't…
Q: Subject: Digital signal processing (DSP)
A: Step 1: Step 2: Step 3: Step 4:
Q: Between a twin lead cable and a coaxial cable, which one is more desirable for use in an amplitude…
A: In amplitude modulation (AM) transmission, the quality of the signal is crucial, as any interference…
Q: Implement the following figure using V-REP (Coppeliasim) Lua Code: 1 1- Add one cuboid to the scene…
A: Here is the breakdown:- Initialization (sysCall_init): This function units up the cuboid with its…
Q: b) Check whether the given systems are linear, shift variant, causal and stable a. y[n] = x[4n+1] b.…
A: Step 1: Step 2:Step 3:
Q: Needs Complete solution with 100 % accuracy don't use chat gpt or ai plz plz plz.
A: Step 1: Step 2: Step 3: Step 4:
Q: compute the correlation coefficient State the hypothesis Determine the regression line equation…
A: Father's Weight (x)Son's Weight (y)XYXXYY 20511.2229642025125.44 1879.51776.53496990.25…
Step by step
Solved in 2 steps with 1 images
- Consider a bank of this single-phase two-winding transformers whose high-voltage terminals are connected to a three-phase, 13.8-kV feeder. The low-voltage terminals are connected to a three-phase substation load rated 2.0 MVA and 2.5 kV. Determine the required voltage, current, and MVA ratings of both windings of each transformer, when the high-voltage/low- voltage windings are connected (a) Y-, (b) -Y, (c) Y-Y, and (d) -.Three single-phase two-winding transformers, each rated 3kVA,220/110volts,60Hz, with a 0.10 per-unit leakage reactance, are connected as a three-phase extended autotransformer bank, as shown in Figure 3.36(c). The low-voltage winding has a 110 volt rating. (a) Draw the positive-sequence phasor diagram and show that the high-voltage winding has a 479.5 volt rating. (b) A three-phase load connected to the low-voltage terminals absorbs 6 kW at 110 volts and at 0.8 power factor lagging. Draw the per-unit impedance diagram and calculate the voltage and current at the high-voltage terminals. Assume positive-sequence operation.In per-unit equivalent circuits of practical three-phase transformers, under balanced thr-phase operation, in which of the following connect ions would a phase-shifting transformer come up? (a) Y-Y (b) Y- (c) -
- In developing per-unit circuits of systems such as the one shown in Figure 3.10. when moving across a transformer, the voltage base is changed in proportion to the transformer voltage ratings. (a) True (b) FalseIn developing per-unit equivalent circuits for three-phase transformers. under balanced three-phase operation. (i) A common Sbase is selected for both the H and X terminals. (ii) The ratio of the voltage bases Vbase/VbaseX is selected to be equal to the ratio of the rated line-to-line voltages VratedHLL/VratedXLL. (a) Only one of the above is true. (b) Neither is true. (C) Both statements are true.Three single-phase two-winding transformers, each rated 25MVA,54.2/5.42kV, are connected to form a three-phase Y- bank with a balanced Y-connected resistive load of 0.6 per phase on the low-voltage side. By choosing a base of 75 MVA (three phase) and 94 kV (line-to-line) for the high-voltage side of the transformer bank, specify the base quantities for the low-voltage side. Determine the per-unit resistance of the load on the base for the low-voltage side. Then determine the load resistance RL in ohms referred to the high-voltage side and the per-unit value of this load resistance on the chosen base.
- A bank of three single-phase transformers, each rated 30MVA,38.1/3.81kV, are connected in Y- with a balanced load of three 1, Y-connected resistors. Choosing a base of 90MVA,66kV for the high-voltage side of the three-phase transformer. spify the base for the low-voltage side. Compute the per-unit resistance of the load on the base for the low-voltage side. Also, determine the load resistance in ohms referred to the high-voltage side and the per-unit value on the chosen base.For a short-circuit test on a 2-winding transformer, with one winding shorted, can you apply the rated voltage on the other winding? (a) Yes (b) NoConsider the oneline diagram shown in Figure 3.40. The three-phase transformer bank is made up of three identical single-phase transformers, each specified by X1=0.24 (on the low-voltage side), negligible resistance and magnetizing current, and turns ratio =N2/N1=10. The transformer bank is delivering 100 MW at 0.8 p.f. lagging to a substation bus whose voltage is 230 kV. (a) Determine the primary current magnitude, primary voltage (line-to-line) magnitude, and the three-phase complex power supplied by the generator. Choose the line-to-neutral voltage at the bus, Va as the reference Account for the phase shift, and assume positive-sequence operation. (b) Find the phase shift between the primary and secondary voltages.
- A single-phase l0-kVA,2300/230-volt,60-Hz two-winding distribution transformer is connected as an autotransformer to step up the voltage from 2300 to 2530 volts (a) Draw a schematic diagram of this arrangement, showing all voltages and currents when delivering full load at rated voltage. (b) Find the permissible kVA rating of the autotransformer if the winding currents and voltages are not to exceed the rated values as a two-winding transformer. How much of this kVA rating is transformed by magnetic induction? (C) The following data are obtained from tests carried out on the transformer when it is connected as a two-winding transformer: Open-circuit test with the low-voltage terminals excited: Applied voltage =230V, input current =0.45A, input power =70W. Short-circuit test with the high-voltage terminals excited: Applied voltage =120, input current =4.5A, input power =240W. Based on the data, compute the efficiency of the autotransformer corresponding to full load, rated voltage, and 0.8 power factor lagging. Comment on why the efficiency is higher as an autotransformer than as a two-winding transformer.The ratings of a three-phase three-winding transformer are Primary(1): Y connected 66kV,15MVA Secondary (2): Y connected, 13.2kV,10MVA Tertiary (3): A connected, 2.3kV,5MVA Neglecting winding resistances and exciting current, the per-unit leakage reactances are X12=0.08 on a 15-MVA,66-kV base X13=0.10 on a 15-MVA,66-kV base X23=0.09 on a 10-MVA,13.2-kV base (a) Determine the per-unit reactances X1,X2,X3 of the equivalent circuit on a 15-MVA,66-kV base at the primary terminals. (b) Purely resistive loads of 7.5 MW at 13.2 kV and 5 MW at 2.3kV are connected to the secondary and tertiary sides of the transformer, respectively. Draw the per- unit impedance diagram, showing the per-unit impedances on a 15-MVA,66-kV base at the primary terminals.Consider the three single-phase two-winding transformers shown in Figure 3.37. The high-voltage windings are connected in Y. (a) For the low-voltage side, connect the windings in , place the polarity marks, and label the terminals a, b, and c in accordance with the American standard. (b) Relabel the terminals a, b, and c such that VAN is 90 out of phase with Va for positive sequence.