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Problem 4. A three-phase system is composed of a gencrator, two transformers, a trans- mission line...
Problem #2: (40 points) The three-phase power and line- given below line ratings of the electric ...
Problem #2: (40 points) The three-phase power and line- given below line ratings of the electric power system shown are G:60 MVA, 20 kV, X = 9% Tr 50 MVA. 20/200 kV.x 1096 T2: 50 MVA, 20020 kV, X 10% M: 43.2 MVA, 18 kV, X 8% Line: 200 kV, Z 120+j200 Ti Line 00-MVA 1. Draw an impedance diagram showing all impedances in per-unit on a1 2. The motor is drawing 40 MVA, 0.8 power factor lagging at a...
12. For a three-phase balanced system, a generator serves a remote load through two parallel tran...
12. For a three-phase balanced system, a generator serves a remote load through two parallel transmission lines with 4 transformers. The system parameters are as follows: Generator: T1: (A-Y, with Y side voltage leading) T2: (A-Y, with Y side voltage leading) T3: (A-Y, with Y side voltage leading) T4: (A-Y, with Y side voltage leading) Line-1 Line-2 Load 100MVA, 21kV, x-0.15pu 120MVA, 20Д/165Y kV, x-O.12pu 80MVA, 20A/1 10Y kV, x-O.1pu 120MVA, 165A/33Y kV, x-0.12pu 80MVA, 11ОД/33Y kV, x-O.1pu 30+j100 O...
show all your work ! (20) In a balanced three-phase system, the positive sequence source is...
show all your work !
(20) In a balanced three-phase system, the positive sequence source is Y-connected and supplies two Y-connected, balanced loads that are in parallel with each other. There is no line resistance between the source and loads. The voltage of line "a" with respect to line "b is 4. V -207.85 /60" VRMS The impedance of load one is 8+ j62 per phase. seconol The total complex power delivered to load is S-1800 45 VA Answer the...
3) The single-line diagram of a three-phase power system is shown in Fig. 1. Equipment ratings...
3) The single-line diagram of a three-phase power system is shown in Fig. 1. Equipment ratings are given as follows: G1 1,000 MVA, 15.0 kV, 20.18, o 0.07 pu G2 : 1,000 MVA. 15.0 kV, 攻=エ1 =エ2 = 0.20, ro = 0.10 pu G3 : 500 MVA, 13.8 kV. 1" = 띠 z2 = 0.15, zo 0.05 pu G4 : 750 MVA, 13.8 kV. ェd =ェ1 = 0.30, T2 = 0.40 ro = 0.10 pu Ti : 1,000 MVA. 15.0Δ/765Y...
The single-line diagram of a three-phase power system is shown. Equipment ratings are given as follows
The single-line diagram of a three-phase power system is shown. Equipment ratings are given as follows: The inductor connected to generator 3 neutral has a reactance of \(0.05\) pu using generator 3 ratings as a base.1. Draw the zero-, positive-, and negative -sequence reactance diagrams using a \(1000 \mathrm{MVA}, 765 \mathrm{kV}\) base in the zone of line \(1-2\).2. Faults at bus 2 are of interest. Determine the Thevenin equivalent of each sequence network as viewed from the fault bus. Prefault voltage...
Transformer TI : 50 MVA, 10 kV Y/138 kV Y, X=0.10 per unit; Transformer T2: 100 MVA, 15 kV D/138 kV Y, X-0.10 per unit; Each 138-kV line: X1-400 A three-phase short circuit occurs at bus 5,...
Transformer TI : 50 MVA, 10 kV Y/138 kV Y, X=0.10 per unit; Transformer T2: 100 MVA, 15 kV D/138 kV Y, X-0.10 per unit; Each 138-kV line: X1-400 A three-phase short circuit occurs at bus 5, where the prefault voltage is 15 kV. Prefault load current is neglected. (a)Draw the positive-sequence reactance diagram in per-unit on a 100-MVA, 15-kV base in the zone of generator G2. Determine: (b) the The'venin equivalent at the fault, (c) the subtransient fault current...
Fig. Q3 shows the one-line diagram of a three-phase power system. As shown in Fig. 23,...
Fig. Q3 shows the one-line diagram of a three-phase power system. As shown in Fig. 23, the two zones are connected by a 400 MVA, 240-kV/24-kV, Y-A three phase transformer. The Y-three phase transformer has an equivalent series impedance of 2T - 1.2 + |1.6 per phase referred to the high-voltage side (primary side). The three-phase power system can be studied with per unit quantities using base values of So=500 MVA and 240 kV in zone 1. 2 -1.61253.15" Line...
Fig Qshows the one-line diagram of a three-phase power system. As shown in Fig. Q3. the...
Fig Qshows the one-line diagram of a three-phase power system.
As shown in Fig. Q3. the two zones are connected by a 400 MVA,
240-kV/24-kV, Ý-A three phase transformer. The Y-A three phase
transfonmer has an equivalent series impedance of ZTH - 1.2 + j1.6n
per phase referred to the high voltage side (primary side). The
three-phase power system can be studied with per unit quantities
using base values of S-500 MVA and 240 kV in zone 1.
By using...
The six-bus system shown in Figure 1 will be simulated using MATLAB. Transmission line data and b...
The six-bus system shown in Figure 1 will be simulated using MATLAB. Transmission line data and bus data are given in Tables 1 and 2 respectively. The transmission line data are calculated on 100 MVA base and 230 (line-to-line) kV base for generator. Tasks: 1. Determine the network admittance matrix Y 2. Find the load flow solution using Gauss-Seidel/Newton Raphson method until first iteration by manual calculation. Use Maltab software to solve power flow problem using Gauss-Seidel method. Find the...
Problem #2: (40 points) The three-phase power and line- given below line ratings of the electric power system shown are G:60 MVA, 20 kV, X = 9% Tr 50 MVA. 20/200 kV.x 1096 T2: 50 MVA, 20020 kV, X 10% M: 43.2 MVA, 18 kV, X 8% Line: 200 kV, Z 120+j200 Ti Line 00-MVA 1. Draw an impedance diagram showing all impedances in per-unit on a1 2. The motor is drawing 40 MVA, 0.8 power factor lagging at a...
12. For a three-phase balanced system, a generator serves a remote load through two parallel transmission lines with 4 transformers. The system parameters are as follows: Generator: T1: (A-Y, with Y side voltage leading) T2: (A-Y, with Y side voltage leading) T3: (A-Y, with Y side voltage leading) T4: (A-Y, with Y side voltage leading) Line-1 Line-2 Load 100MVA, 21kV, x-0.15pu 120MVA, 20Д/165Y kV, x-O.12pu 80MVA, 20A/1 10Y kV, x-O.1pu 120MVA, 165A/33Y kV, x-0.12pu 80MVA, 11ОД/33Y kV, x-O.1pu 30+j100 O...
show all your work !
(20) In a balanced three-phase system, the positive sequence source is Y-connected and supplies two Y-connected, balanced loads that are in parallel with each other. There is no line resistance between the source and loads. The voltage of line "a" with respect to line "b is 4. V -207.85 /60" VRMS The impedance of load one is 8+ j62 per phase. seconol The total complex power delivered to load is S-1800 45 VA Answer the...
3) The single-line diagram of a three-phase power system is shown in Fig. 1. Equipment ratings are given as follows: G1 1,000 MVA, 15.0 kV, 20.18, o 0.07 pu G2 : 1,000 MVA. 15.0 kV, 攻=エ1 =エ2 = 0.20, ro = 0.10 pu G3 : 500 MVA, 13.8 kV. 1" = 띠 z2 = 0.15, zo 0.05 pu G4 : 750 MVA, 13.8 kV. ェd =ェ1 = 0.30, T2 = 0.40 ro = 0.10 pu Ti : 1,000 MVA. 15.0Δ/765Y...
The single-line diagram of a three-phase power system is shown. Equipment ratings are given as follows: The inductor connected to generator 3 neutral has a reactance of \(0.05\) pu using generator 3 ratings as a base.1. Draw the zero-, positive-, and negative -sequence reactance diagrams using a \(1000 \mathrm{MVA}, 765 \mathrm{kV}\) base in the zone of line \(1-2\).2. Faults at bus 2 are of interest. Determine the Thevenin equivalent of each sequence network as viewed from the fault bus. Prefault voltage...
Transformer TI : 50 MVA, 10 kV Y/138 kV Y, X=0.10 per unit; Transformer T2: 100 MVA, 15 kV D/138 kV Y, X-0.10 per unit; Each 138-kV line: X1-400 A three-phase short circuit occurs at bus 5, where the prefault voltage is 15 kV. Prefault load current is neglected. (a)Draw the positive-sequence reactance diagram in per-unit on a 100-MVA, 15-kV base in the zone of generator G2. Determine: (b) the The'venin equivalent at the fault, (c) the subtransient fault current...
Fig. Q3 shows the one-line diagram of a three-phase power system. As shown in Fig. 23, the two zones are connected by a 400 MVA, 240-kV/24-kV, Y-A three phase transformer. The Y-three phase transformer has an equivalent series impedance of 2T - 1.2 + |1.6 per phase referred to the high-voltage side (primary side). The three-phase power system can be studied with per unit quantities using base values of So=500 MVA and 240 kV in zone 1. 2 -1.61253.15" Line...
Fig Qshows the one-line diagram of a three-phase power system.
As shown in Fig. Q3. the two zones are connected by a 400 MVA,
240-kV/24-kV, Ý-A three phase transformer. The Y-A three phase
transfonmer has an equivalent series impedance of ZTH - 1.2 + j1.6n
per phase referred to the high voltage side (primary side). The
three-phase power system can be studied with per unit quantities
using base values of S-500 MVA and 240 kV in zone 1.
By using...
The six-bus system shown in Figure 1 will be simulated using MATLAB. Transmission line data and bus data are given in Tables 1 and 2 respectively. The transmission line data are calculated on 100 MVA base and 230 (line-to-line) kV base for generator. Tasks: 1. Determine the network admittance matrix Y 2. Find the load flow solution using Gauss-Seidel/Newton Raphson method until first iteration by manual calculation. Use Maltab software to solve power flow problem using Gauss-Seidel method. Find the...
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