Homework Answers
ANSWER: (2nd Option) 230V
Explanation: For delta connection Phase Voltage and Line voltage are equal.
Line Voltage=Phase Voltage = 230V
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Question 7 CL01 - If the phase voltage is 230Vrms in a delta-connected generator, the line...
Question 2: Three phase circuit. (100p) A wye connected generator supplies a delta connected balanced load...
Question 2: Three phase circuit. (100p) A wye connected generator supplies a delta connected balanced load through short feeder. seree the load line to neutral voltage as reference voltage phase angle zero. 02.1 Q2.2 Q2.3 Q2.4 Draw the equivalent circuit. 10p Calculate the load line-to-neutral voltages and line-to-line voltages. 20p Calculate the delta load currents and feeder currents. 20p Calculate the supply wye connected generator line-to-neutral voltages. Is the obtained values are acceptable? Calculate the generator real and reactive power...
(BEKG 2433/BEKP 2323) QUESTION 2 a) A balance three-phase system comprises of star-connected generator and delta-connected...
(BEKG 2433/BEKP 2323) QUESTION 2 a) A balance three-phase system comprises of star-connected generator and delta-connected load are shown in Figure Q2(a). The system are operated based on positive sequence with line voltage Vy - 2402-15°V and load impedance ZxvZYB -ZR - 15+j622. Analyze the phase difference between the line and phase currents with the proper calculation and show the phasor diagrams (11 marks) Zar 1 Y Zvo Figure Q2 (a): A balance three-phase system.
A three-phase, delta-connected, two-pole, synchronous generator is connected to a 60 Hz, 13.5 kV (line-to-line), system....
A three-phase, delta-connected, two-pole, synchronous generator is connected to a 60 Hz, 13.5 kV (line-to-line), system. The generator is delivering its rated output power, under which conditions pfload = 0.8 lagging and |SI = 20 MVA. The generator per-phase model parameters at rated load are. RA = 0.5 2 Xss = 522 9. What is the generator's line-to-line voltage regulation? Is the voltage regulation positive or negative? 10. If the field current is held at the rated load value, but...
A three-phase generator connected in a star generates a phase voltage of Vθ = 2500 Vrms...
A three-phase generator connected in a star generates a phase voltage of Vθ = 2500 Vrms and supplies a delta-connected three-phase load. The three phases of the generator feed 3 equal charges each composed of R = 10 Ω, XC = 4Ω and XL = 10Ω. a) Calculate the phase, line and load currents b) Calculate the phase, line and load voltages c) Calculate the powers of Apparent (S), Real (P) and Reactive (Q) delivered by the generator d) Calculate...
A three single-phase transformers steps up the three-phase generator voltage of 13.8 kV (line to line)...
A three single-phase transformers steps up the three-phase generator voltage of 13.8 kV (line to line) to a transmission voltage of 138 kV (line to line). The generator rating is 41.5 MVA. Find the voltage, current, and kVA ratings of each transformer for the following connections: Low-voltage windings Delta, high-voltage windings Y. Low-voltage windings Y, high-voltage windings Delta.
Given: a balanced Y-connected three-phase generator with a line-to-line voltage of Vab = 100 ∠∠40° V...
Given: a balanced Y-connected three-phase generator with a line-to-line voltage of Vab = 100 ∠∠40° V and Vbc = 100 ∠∠160° V. References eBook & Resources (Click to select)acbabc 7. value: 9.00 points Required information Determine the value of Van. Please report your answer so the magnitude is positive and all angles are in the range of negative 180 degrees to positive 180 degrees.
4-9 Question Completion Status: QUESTION 4 A three phase delta source is connected to a three...
4-9
Question Completion Status: QUESTION 4 A three phase delta source is connected to a three phase transformer. The primary of the transformer is connected in a delta configuration The line voltage on the primary is 240V. The turns ratio is 2:1. The secondary of the transformer is connected in a wye configuration. A wye connected load is attached to the secondary of the transformer. Each of the three load resistors has a resistance of 10 ohms. What is the...
7. A balanced three-phase Y-connected generator with positive sequence has an impedance of 0.2+ 20.5 216...
7. A balanced three-phase Y-connected generator with positive sequence has an impedance of 0.2+ 20.5 216 and an internal voltage of 220 V/6. The generator feeds a balanced three-phase Y-connected load having an impedance of 39 + j28 /6. The impedance of the line connecting the generator to the load is 0.8 +j1.5 /6. The a-phase internal voltage of the generator is specified as the reference phasor. (a) Construct the a-phase equivalent circuit of the system. (5 points) (b) Calculate...
The Star connected generator having the phase a voltage at 200 L 60°V. By assuming the...
The Star connected generator having the phase a voltage at 200 L 60°V. By assuming the three phase system is balance and following the positive sequence thus determine the line voltage ECA.
(6) Q.10.3 A balanced delta-connected source has phase voltage Vat = 880230 V and a positive...
(6) Q.10.3 A balanced delta-connected source has phase voltage Vat = 880230 V and a positive phase sequence. If this is connected to a balanced delta-connected load, find the line and phase currents. Take the load impedance per phase as 60230 0 and line impedance per phase as 1 +j10.
Question 2: Three phase circuit. (100p) A wye connected generator supplies a delta connected balanced load through short feeder. seree the load line to neutral voltage as reference voltage phase angle zero. 02.1 Q2.2 Q2.3 Q2.4 Draw the equivalent circuit. 10p Calculate the load line-to-neutral voltages and line-to-line voltages. 20p Calculate the delta load currents and feeder currents. 20p Calculate the supply wye connected generator line-to-neutral voltages. Is the obtained values are acceptable? Calculate the generator real and reactive power...
(BEKG 2433/BEKP 2323) QUESTION 2 a) A balance three-phase system comprises of star-connected generator and delta-connected load are shown in Figure Q2(a). The system are operated based on positive sequence with line voltage Vy - 2402-15°V and load impedance ZxvZYB -ZR - 15+j622. Analyze the phase difference between the line and phase currents with the proper calculation and show the phasor diagrams (11 marks) Zar 1 Y Zvo Figure Q2 (a): A balance three-phase system.
A three-phase, delta-connected, two-pole, synchronous generator is connected to a 60 Hz, 13.5 kV (line-to-line), system. The generator is delivering its rated output power, under which conditions pfload = 0.8 lagging and |SI = 20 MVA. The generator per-phase model parameters at rated load are. RA = 0.5 2 Xss = 522 9. What is the generator's line-to-line voltage regulation? Is the voltage regulation positive or negative? 10. If the field current is held at the rated load value, but...
4-9
Question Completion Status: QUESTION 4 A three phase delta source is connected to a three phase transformer. The primary of the transformer is connected in a delta configuration The line voltage on the primary is 240V. The turns ratio is 2:1. The secondary of the transformer is connected in a wye configuration. A wye connected load is attached to the secondary of the transformer. Each of the three load resistors has a resistance of 10 ohms. What is the...
7. A balanced three-phase Y-connected generator with positive sequence has an impedance of 0.2+ 20.5 216 and an internal voltage of 220 V/6. The generator feeds a balanced three-phase Y-connected load having an impedance of 39 + j28 /6. The impedance of the line connecting the generator to the load is 0.8 +j1.5 /6. The a-phase internal voltage of the generator is specified as the reference phasor. (a) Construct the a-phase equivalent circuit of the system. (5 points) (b) Calculate...
The Star connected generator having the phase a voltage at 200 L 60°V. By assuming the three phase system is balance and following the positive sequence thus determine the line voltage ECA.
(6) Q.10.3 A balanced delta-connected source has phase voltage Vat = 880230 V and a positive phase sequence. If this is connected to a balanced delta-connected load, find the line and phase currents. Take the load impedance per phase as 60230 0 and line impedance per phase as 1 +j10.
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