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Problem 3. The circuit, shown below, is composed of four transmission lines, T1, T2, T3, and...
3. For the circuit shown below, with continuous load current. Each thyristor pair conducts for T1 T3 T2, T4 a) radians...
3. For the circuit shown below, with continuous load current. Each thyristor pair conducts for T1 T3 T2, T4 a) radians b) 2π radians c) < π radians d) > π radians
3. For the circuit shown below, with continuous load current. Each thyristor pair conducts for T1 T3 T2, T4 a) radians b) 2π radians c) π radians
2. Three transmission lines are connected as shown below. Note that 3) is short- circuited and...
2. Three transmission lines are connected as shown below. Note that 3) is short- circuited and it is connected in series to the tandem of transmission lines I and 2. Calculate Zin (input impedance of line) ap the input port (sinusoidal steady state mode operating at the frequency of 100 MHz)、The velocity of propagation on all lines are identical. Also, what is the value of the equivalent circuit element for Zin? 100 Zol= 100 Ω di-A Zin as-75 Ω
Two transmission lines are connected one after the other as shown below. The operation frequency is...
Two transmission lines are connected one after the other as shown below. The operation frequency is 300 MHz and both transmission lines are filled with a material with relative permittivity Er = 4. Calculate the following quantities. (a) The input impedance Zini at the beginning of the right transmission line (hint: show that the length of this line is a quarter wavelength). (b) The input impedance Zin at the beginning of the left transmission line. (c) The input voltage Vi...
A 7-bus power system with three generators, six transformers, and seven transmission lines is shown in...
A 7-bus power system with three generators, six transformers, and seven transmission lines is shown in Figure Q1. The per-unit reactances for the generators and transfomers are based on their rated voltage and expressed in percentage. When a three-phase fault occurs at bus 5; three transmission lines, namely L4, L5, and L6, are disconnected from the power system. By taking the base apparent power of 100 MVA and the rated voltage of generator G1 as the reference, determine the per-unit...
Bus A Bus B R1 T1 line 1 20% 80% line 2 T2 R2 110 kV 11 kV The fault is located at point F, which...
Bus A Bus B R1 T1 line 1 20% 80% line 2 T2 R2 110 kV 11 kV The fault is located at point F, which is 20% of the total line 2 length from Bus B Fault MVA 1524.20471 Three-phase fault level in MVA at bus A SPFL (kA) 8 MVA1 MVA2 X1 (96) X2 (96) R1 (2) R2 (Q) z' (Q) Zo (2) Rf (Q) Single phase to ground fault level (kA) at bus A Transformer 1 MVA...
QUESTION 5 a) Define the Per Unit system and list three (3) main reasons of using Per Unit system...
Per unit calculation
QUESTION 5 a) Define the Per Unit system and list three (3) main reasons of using Per Unit systemm. (5 marks) b) A three-bus power with two generator system is shown in figure Q2 (b). The 3-phase power and line-line voltage ratings are given below Ti T2 J40 2 Gi G2 j25 Ω 25 Ω Ty Figure Q2 (b) GI: 750 MVA, 18 kV, X 7% G2: 750 MVA, 18 kV, X-15% Motor: 1500 MVA, 20 kV,...
Bus A Bus B R1 TI ine 1 20% 80% line 2 T2 R2 110 kV 11 kV The fault is located at point F, which ...
Bus A Bus B R1 TI ine 1 20% 80% line 2 T2 R2 110 kV 11 kV The fault is located at point F, which is 20% of the total line 2 length from Bus B Fault MVA 1524.20471 Three-phase fault level in MVA at bus A SPFL (kA) 8 MVA1 MVA2 X1 (96 X2 (96) R1 (2) R2 (Q) z' (Q) Zo (2) Rf (Q) Single phase to ground fault level (kA) at bus A Transformer 1 MVA...
Bus A Bus B R1 TI ine 1 20% 80% line 2 T2 R2 110 kV 11 kV The fault is located at point F, which ...
Bus A Bus B R1 TI ine 1 20% 80% line 2 T2 R2 110 kV 11 kV The fault is located at point F, which is 20% of the total line 2 length from Bus B Fault MVA 1524.20471 Three-phase fault level in MVA at bus A SPFL (kA) 8 MVA1 MVA2 X1 (96 X2 (96) R1 (2) R2 (Q) z' (Q) Zo (2) Rf (Q) Single phase to ground fault level (kA) at bus A Transformer 1 MVA...
1. Consider the circuit shown below which shows a battery connected to some resistors battery is...
1. Consider the circuit shown below which shows a battery connected to some resistors battery is along with some switches which will be toggled opened or closed at different times. The a15V battery. Resistor R1 is 100?, R2 is 200?, and Cl is 110 ?F, C2 is 80 ?F, and C3 is A stopwatch is started at time t1-0 ms. At that time, switch S1 is closed and all other switches are open and the capacitor is allowed to charge...
Problem 2 A transmission line configuration, shown below, is use in a communications system to divide...
Problem 2 A transmission line configuration, shown below, is use in a communications system to divide power. The frequency is 100 MHz and all transmission lines are considered ideal and lossless. The values of 2,2 = 225Ω, 2, = 50Ω, Zo,3 = 50Ω, and L3 = 0.75 meters. (a) Determine the shortest line lengths for Li and L2 and their corresponding charac- teristic impedances Z2, Z1 to give equal power (Zi into the two loads (eg into Z2, and Z)...
3. For the circuit shown below, with continuous load current. Each thyristor pair conducts for T1 T3 T2, T4 a) radians b) 2π radians c) < π radians d) > π radians
3. For the circuit shown below, with continuous load current. Each thyristor pair conducts for T1 T3 T2, T4 a) radians b) 2π radians c) π radians
2. Three transmission lines are connected as shown below. Note that 3) is short- circuited and it is connected in series to the tandem of transmission lines I and 2. Calculate Zin (input impedance of line) ap the input port (sinusoidal steady state mode operating at the frequency of 100 MHz)、The velocity of propagation on all lines are identical. Also, what is the value of the equivalent circuit element for Zin? 100 Zol= 100 Ω di-A Zin as-75 Ω
Two transmission lines are connected one after the other as shown below. The operation frequency is 300 MHz and both transmission lines are filled with a material with relative permittivity Er = 4. Calculate the following quantities. (a) The input impedance Zini at the beginning of the right transmission line (hint: show that the length of this line is a quarter wavelength). (b) The input impedance Zin at the beginning of the left transmission line. (c) The input voltage Vi...
A 7-bus power system with three generators, six transformers, and seven transmission lines is shown in Figure Q1. The per-unit reactances for the generators and transfomers are based on their rated voltage and expressed in percentage. When a three-phase fault occurs at bus 5; three transmission lines, namely L4, L5, and L6, are disconnected from the power system. By taking the base apparent power of 100 MVA and the rated voltage of generator G1 as the reference, determine the per-unit...
Bus A Bus B R1 T1 line 1 20% 80% line 2 T2 R2 110 kV 11 kV The fault is located at point F, which is 20% of the total line 2 length from Bus B Fault MVA 1524.20471 Three-phase fault level in MVA at bus A SPFL (kA) 8 MVA1 MVA2 X1 (96) X2 (96) R1 (2) R2 (Q) z' (Q) Zo (2) Rf (Q) Single phase to ground fault level (kA) at bus A Transformer 1 MVA...
Per unit calculation
QUESTION 5 a) Define the Per Unit system and list three (3) main reasons of using Per Unit systemm. (5 marks) b) A three-bus power with two generator system is shown in figure Q2 (b). The 3-phase power and line-line voltage ratings are given below Ti T2 J40 2 Gi G2 j25 Ω 25 Ω Ty Figure Q2 (b) GI: 750 MVA, 18 kV, X 7% G2: 750 MVA, 18 kV, X-15% Motor: 1500 MVA, 20 kV,...
Bus A Bus B R1 TI ine 1 20% 80% line 2 T2 R2 110 kV 11 kV The fault is located at point F, which is 20% of the total line 2 length from Bus B Fault MVA 1524.20471 Three-phase fault level in MVA at bus A SPFL (kA) 8 MVA1 MVA2 X1 (96 X2 (96) R1 (2) R2 (Q) z' (Q) Zo (2) Rf (Q) Single phase to ground fault level (kA) at bus A Transformer 1 MVA...
Bus A Bus B R1 TI ine 1 20% 80% line 2 T2 R2 110 kV 11 kV The fault is located at point F, which is 20% of the total line 2 length from Bus B Fault MVA 1524.20471 Three-phase fault level in MVA at bus A SPFL (kA) 8 MVA1 MVA2 X1 (96 X2 (96) R1 (2) R2 (Q) z' (Q) Zo (2) Rf (Q) Single phase to ground fault level (kA) at bus A Transformer 1 MVA...
1. Consider the circuit shown below which shows a battery connected to some resistors battery is along with some switches which will be toggled opened or closed at different times. The a15V battery. Resistor R1 is 100?, R2 is 200?, and Cl is 110 ?F, C2 is 80 ?F, and C3 is A stopwatch is started at time t1-0 ms. At that time, switch S1 is closed and all other switches are open and the capacitor is allowed to charge...
Problem 2 A transmission line configuration, shown below, is use in a communications system to divide power. The frequency is 100 MHz and all transmission lines are considered ideal and lossless. The values of 2,2 = 225Ω, 2, = 50Ω, Zo,3 = 50Ω, and L3 = 0.75 meters. (a) Determine the shortest line lengths for Li and L2 and their corresponding charac- teristic impedances Z2, Z1 to give equal power (Zi into the two loads (eg into Z2, and Z)...
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