Form the Ybus matrix of the given network. The given values of the lines are in impedance.
Q: Form the bus admittance matrix for the system below, given that Z,1 = Z2 = j0.25, Z12 = j0.2, Z13 =…
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Q: 4. Construct or build the Z-bus matrix for the network shown in beloOw fig. below by using KRON node…
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Q: In a 3 bus system of network , first bus is a Slack bus and remaining 2 buses are load buses the the…
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Q: A 50 bus power system has [Ybus] matrix which is 80% sparse. The number of transmission lines in the…
A: Given: Number of buses in the power system, n=50 Sparsity, x=80%
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Q: For the two port network shown in the figure the Z-matrix is given by I Z, + V, Z, V,
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Q: Question 10 In which of the following matrix construction or building will consume more time ? Why…
A: In this question , we will find which bus will consume more time..
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Q: For a two port network Z matrix is given as: [14 8 Z = 6. 1 4 What will be the value of h11 (in…
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Q: b) For the two port networks prove that: Z1,Z1s A %3D | Z2s(Z10-Z1s)
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Q: Find the transmission parameters of the following network, using the formulas derived above:
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Q: The size of the ZBus matrix is equal to the of the number of buses of the system True False
A: To find true false
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Q: Form the Ybus matrix of the given network. The given values of the lines are in impedance.
A: Question is to form Y bus matrix From above network, Z12 =j0.51Z13 =j0.21Z23 =j0.25
Q: Minimse the function using K-map (Table 1) F(A,B, C,D, E) = > m(1,2,3,5,7,11,13,17,19,23,29,31) %3D…
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Q: Write equation for Il(t)
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Q: 4. Construct or build the Z-bus matrix for the network shown in below fig. below by using KRON node…
A: KRON node elimination technique is the direct determination of the Zbus matrix without forming the…
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A: the power system has 'n' number of generators, the size of the B- coefficient matrix is (nxn)
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Q: The off-diagonal elements of ZBus matrix are known as driving point impedances O True O False
A: The Zbus matrix is an important matrix used in the study of power systems. Though it is not as…
Q: For a reciprocal network, Z matrix is: A unit matrix Symmetric matrix O Null matrix Skew symmetric…
A: For a reciprocal matrix impedance at port Zij is equal to the impedance at port Zji. So parameters…
Q: PD3 = 1.05 E1 PG1 (1) Y13=-j4 3 V12=-j2.5 (2) Y23=-j5 PG2=0.7 E2
A: Given: E1 and E2 = 1.5 angle 0 To find: 1. Y-Bus and Z-Bus Matrix. 2. Find equivalent circuit when…
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Q: Determine Y-Bus and Z-Bus Matrix Given E1 and E2 equal 1.5 angle 0
A: The diagonal elements are the self admittance or driving point admittance. The off diagonal entries…
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A: Given that two sequences x[n] =[4, 3, 2, 4] and h[n]=[ 4,-2, 3, 2] Find circular convolution
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Q: j0.50 2 j0.20 j0.30
A: Impedance matrix or Z-bus matrix: Z-bus matrix is a relation between the various node voltages with…
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- 7. In the circuit below write the loop equations and set up (not solve) the matrix equation for the load current. Wiso 150 75 28 100The shown distribution network is to supply two factories A & B with load curves indicated. Assume that both factories have a lagging power factor of 0.8 . a) Select the required sizes of transformers for both factories such that in the case of a failure in one transformer the overload on the remaining ones should not exceed 15% . b) Select the required sizes of fuses to be installed at both sides of transformers. c) Calculate the annual energy losses in transformers of factory A. Assuming that transformers are in operation continuously . d) Select the required size of the 11KV. XLPE cables for the distribution network , if cables are to be laid direct in ground with тахітит ground temperature of 30° С. e) Calculate the annual energy losses in cables of section SA . S 2 Km A 3 Km 11/0.4 KV Trans. 11/0.4 KV Trans. Factory A PF = 0.8 lag. Factory B PF = 0.8 lag. | S (KVA) 500 |S (KVA) 500 400 400 300 300 200 200 100 100 Time (hr) 24 Time (hr) 24 6. 12 18 12 18 Load curve of Factory (A)…The per unit impedance of a generator on a 60 MVA, 20 kV base is j0.09 p.u. The per unit impedance to a 100 MVA, 20 kV base will be (a.) j0.054 p.u. (c.) j 1.5 p.u. (b.) j0.54 p.u. (d.) j0.15 p.u.
- THESE ARE THE QUESTIONS FROM THE SUBJECT POWER SYSTEM FUNDAMENTALS AND THE CHAPTER IS PERFORMANCE OF TRANSMISSION LINES AND THE TOPIC IS SHORT TRANSMISSION LINES THE ANSWERS ARE GIVEN WITH THE QUESTION PLEASE DO ALL THE QUESTIONS PROPERLY „DONOT SKIP ANY STEP AND DO YOUR BEST 4.) Estimate the distance over which a load of 15000 kW at 0-85 p.f. can be delivered by a 3-phase transmission line having conductors of steel-cored aluminium each of resistance 0-905 O/phase per kilometre. The voltage at the receiving end is to be 132 kV and the loss in transmission is to be 7-5% of the load. [69-55 km] 5). A 3-phase line 3 km long delivers 3000 kw at a p.f. 0-8 lagging to a load. The resistance and reactance per km of each conductor are 0-40 and 0-3 Q respectively. If the voltage at the supply end is maintained at 11 kv, calculate: (i) ceceiving end voltage (line-to-line) (ii) line current (ii) transmission efficiency. [(i) 10.46 kv (ii) 207 A (ii) 95%] 6). A short 3-0 transmission line with an…The shown distribution network is to supply two factories A & B with load curves indicated. Assume that both factories have a lagging power factor of 0.8. a) Select the required sizes of transformers for both factories such that in the case of a failure in one transformer the overload on the remaining ones should not exceed 15%. b) Select the required sizes of fuses to be installed at both sides of transformers. c) Calculate the annual energy losses in transformers of factory A. Assuming that transformers are in operation continuously. d) Select the required size of the 11KV. XLPE cables for the distribution network, if cables are to be laid direct in ground with maximum ground temperature of 30° C. e) Calculate the annual energy losses in cables of section SA . 2 Km A. 3 Km 11/0.4 KV Trans. 11/0.4 KV Trans. Factory A PF = 0.8 lag. Factory B PF = 0.8 lag. S(KVA) 500 S KVA) 500 400- 400 300- 200 300 200 100 100 12 Time (hr) 24 Time (hr) 24 6. 18 12 18 Load curve of Factory (A) Load…The p.u. impedance value of an alternator corresponding to base values of 13.2 kV and 30 MVA is 0.2 p.u. Then the p.u. impedance value of an alternator for the new base values of 13.8 kV and 50 MVA is......
- A generator delivers power through a transmission line at 23 kV. The resulting line loss across the 23-kV transmission line is 4.3 MW. To reduce the losses, a step-up transformer rated 23 KV/230 kV is used. What will be the new loss in MW across a 230-kV transmission line?consider the following diagram of impedances in per unit of a common base a) get the YBUS admittance array and the ZBuz impedance array 213-j2 pu zt2-j0.15 zg2-j1.85 791-j0.9 211-0.1 1 212-j0.5pu 223-j0.5pu Va 1 p.u. Jv1-1p.u. 22-10 puQ2) A 13.2-kV single-phase generator supplies power to a load through a transmission line. The load's impedance is Ztoad 500 236.87° ohm , and the transmission line's impedance is Zine = 60 253.1° ohm. To reduce transmission line losses to 0.0103 of its losses without using the transformers design and use two transformers T1 between the generator and the transmission line and T2 between the transmission line and the load.
- The reactance of a generator is given as 0.25 per-unit based on the generator’s of 18 kV, 500 MVA. Find its per-unit reactance on a base of 20 kV, 100 MVA. a. 0.0505 b. 0.0605 c. 0.0405 d. 0.0606The 13.2 kV 50-Hz generator feeds a load over a line with (Zload) impedance Zline. Load is 800n + j500n and impedance of the line is 20 + j300 a) If the generator is directly connected to the load as given in (a), what will be the line losses? b) If the generator is connected to the load using step-up and step-down transformers as given in (b), what will be the line losses? c) How much is the increase in efficiency compared to (a) from (b)? Zline 2. (a) 1:10 10:1 Zline Tr Tr2 (b) Zload ZloadThe VSWR on an 50-Ohm transmission line is 5. The distance between successive voltageminima is 80 cm while the distance from the load to the first minimum is 30 cm. What are thereflection coefficient and load impedance