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4- A 3-ph, 60 Hz,...
Q2) A 13.8-kV, 50-MVA, 0.9-power-factor-lagging, 60-Hz, four-pole Y-connected synchronous generat...
Q2) A 13.8-kV, 50-MVA, 0.9-power-factor-lagging, 60-Hz, four-pole Y-connected synchronous generator has a synchronous reactance of 2.5 Ω and an armature resistance of 0.2 Ω At 60 Hz, its friction and windage losses are 1 MW, and its core losses are 1.5 MW. The field circuit has a de voltage of 120 V, and the maximum , is 10 A. The current of the field circuit is adjustable over the range from 0 to 10 A. The OCC of this generator...
A 3-phase, 100 MVA, 11 kV, 60 Hz, 200 rpm synchronous generator has synchronous reactance of...
A 3-phase, 100 MVA, 11 kV, 60 Hz, 200 rpm synchronous generator has synchronous reactance of 12 2 and negligible stator resistance. a. The generator is connected to an infinite bus and delivers 80 MW at 0.8 leading power factor. Determine the power angle and excitation voltage EA. Draw the phasor diagram. b. The field current of the generator is now slowly reduced until the generator reaches its static stability limit (5=0). For this condition, determine the power angle, excitation...
A 1500 kW, unity pf, 3-phase, Y-connected, 2300 V-(line), 30 pole, 60 Hz synchronous motor has...
A 1500 kW, unity pf, 3-phase, Y-connected, 2300 V-(line), 30 pole, 60 Hz synchronous motor has a synchronous reactance of 1.95 22/phase. For this problem all losses may be neglected. a. Compute the max. torque in Nm which this motor can deliver if it is supplied with power from an infinite bus, and if its field excitation is constant at the value which would result in unity (1.0) pf at rated load. b. Now, suppose that the motor is supplied...
Please show all the clearly step A 500 MVA, 24 kV, 60 Hz three-phase synchronous generator...
Please show all the clearly step
A 500 MVA, 24 kV, 60 Hz three-phase synchronous generator is operating at rated voltage and frequency with a terminal power factor of 0.8 lagging. The synchronous reactance X 0.8. Stator coil resistance is negligible. The internally generated voltage E,-18 kv a) Draw the per phase equivalent circuit. b) Determine the torque (power) angle 5, c) the total output power, d) the line current.
(40%) Problem 2 of 3: An engine-generator set is paralleled with a 13.2 kv, 60 Hz infinite (utili...
please show steps. Thank you.
(40%) Problem 2 of 3: An engine-generator set is paralleled with a 13.2 kv, 60 Hz infinite (utility) bus to deliver power to a 2000 kw plant load at 0.866 lagging power factor. The synchronous generator is wye-connected and rated 3750 kva, 13.2 kv, and 0.8 power factor lagging with 1.0 per unit synchronous reactance and negligible armature resistance. 13.2 kVI 60 Hz I infinite bus utility) rated: 3750 kva 0.8 lag load: 2000 kW...
A 10MVA 13.8-kV 60-Hz four-pole Y-connected synchronous generator is delivering rated power at unity power factor....
A 10MVA 13.8-kV 60-Hz four-pole Y-connected synchronous generator is delivering rated power at unity power factor. a) Draw the equivalent circuit for the analysis of this problem b) Find the synchronous reactance given that the field excitation voltage is 6.89kV (per phase) and leads the terminal voltage by an angle π/4. c) In a special occasion, the generator is operated as a motor (the synchronous reactance is the one derived in (a)). At rated terminal voltage, what is the minimum...
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 100-MVA 12.5-KV 0.85-PF lagging 50-Hz two-pole Y-connected synchronous generator has a synchronous reactance of 1.7...
A 100-MVA 12.5-KV 0.85-PF lagging 50-Hz two-pole Y-connected synchronous generator has a synchronous reactance of 1.7 Q and a negligible armature resistance. I) What is the magnitude of the internal generated voltage at rated conditions? 2) What is its torque angle at these conditions? 3) What is its voltage regulation? 4) Ignoring the losses in this generator, what torque must be applied to its shaft by the prime mover at full load? 5) What is the maximum power the generator...
A 75 MVA, 25 Kv, three-phase, 60 Hz synchronous generator has a synchronous reactance of X=...
A 75 MVA, 25
Kv, three-phase, 60 Hz synchronous generator
has a synchronous reactance of X= 9
Ω per phase and a negligible resistance.
The generator is delivrimg rated power at a
0.8 power factor lagging at the rated
terminal voltage to an infinitie bus, as shown in the following
figure 1.
Figure 1.The synchronous generator connected to infinite bus
in single phase.
1) The excitation voltage is E = 26.87 KV,
The generator delivring 60 MW. Compute the powe...
A three-phase synchronous generator with rated data VM = 20 kV, SM = 100 MVA, n...
A three-phase synchronous generator with rated data VM = 20 kV, SM = 100 MVA, n = 500 rpm is driven by a turbine that can provide a maximum of 1.6 MNm. Synchronous reactance, XS = 3Ω / phase. The armature resistance (Ra ) is neglected. In open circuit mode (P = 0), an excitation current of 300 A is required to obtain rated voltage (VM ). The machine should be phased into a strong grid, 3x20 kV, 50 Hz....
Q2) A 13.8-kV, 50-MVA, 0.9-power-factor-lagging, 60-Hz, four-pole Y-connected synchronous generator has a synchronous reactance of 2.5 Ω and an armature resistance of 0.2 Ω At 60 Hz, its friction and windage losses are 1 MW, and its core losses are 1.5 MW. The field circuit has a de voltage of 120 V, and the maximum , is 10 A. The current of the field circuit is adjustable over the range from 0 to 10 A. The OCC of this generator...
A 3-phase, 100 MVA, 11 kV, 60 Hz, 200 rpm synchronous generator has synchronous reactance of 12 2 and negligible stator resistance. a. The generator is connected to an infinite bus and delivers 80 MW at 0.8 leading power factor. Determine the power angle and excitation voltage EA. Draw the phasor diagram. b. The field current of the generator is now slowly reduced until the generator reaches its static stability limit (5=0). For this condition, determine the power angle, excitation...
A 1500 kW, unity pf, 3-phase, Y-connected, 2300 V-(line), 30 pole, 60 Hz synchronous motor has a synchronous reactance of 1.95 22/phase. For this problem all losses may be neglected. a. Compute the max. torque in Nm which this motor can deliver if it is supplied with power from an infinite bus, and if its field excitation is constant at the value which would result in unity (1.0) pf at rated load. b. Now, suppose that the motor is supplied...
Please show all the clearly step
A 500 MVA, 24 kV, 60 Hz three-phase synchronous generator is operating at rated voltage and frequency with a terminal power factor of 0.8 lagging. The synchronous reactance X 0.8. Stator coil resistance is negligible. The internally generated voltage E,-18 kv a) Draw the per phase equivalent circuit. b) Determine the torque (power) angle 5, c) the total output power, d) the line current.
please show steps. Thank you.
(40%) Problem 2 of 3: An engine-generator set is paralleled with a 13.2 kv, 60 Hz infinite (utility) bus to deliver power to a 2000 kw plant load at 0.866 lagging power factor. The synchronous generator is wye-connected and rated 3750 kva, 13.2 kv, and 0.8 power factor lagging with 1.0 per unit synchronous reactance and negligible armature resistance. 13.2 kVI 60 Hz I infinite bus utility) rated: 3750 kva 0.8 lag load: 2000 kW...
A 10MVA 13.8-kV 60-Hz four-pole Y-connected synchronous generator is delivering rated power at unity power factor. a) Draw the equivalent circuit for the analysis of this problem b) Find the synchronous reactance given that the field excitation voltage is 6.89kV (per phase) and leads the terminal voltage by an angle π/4. c) In a special occasion, the generator is operated as a motor (the synchronous reactance is the one derived in (a)). At rated terminal voltage, what is the minimum...
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 100-MVA 12.5-KV 0.85-PF lagging 50-Hz two-pole Y-connected synchronous generator has a synchronous reactance of 1.7 Q and a negligible armature resistance. I) What is the magnitude of the internal generated voltage at rated conditions? 2) What is its torque angle at these conditions? 3) What is its voltage regulation? 4) Ignoring the losses in this generator, what torque must be applied to its shaft by the prime mover at full load? 5) What is the maximum power the generator...
A 75 MVA, 25
Kv, three-phase, 60 Hz synchronous generator
has a synchronous reactance of X= 9
Ω per phase and a negligible resistance.
The generator is delivrimg rated power at a
0.8 power factor lagging at the rated
terminal voltage to an infinitie bus, as shown in the following
figure 1.
Figure 1.The synchronous generator connected to infinite bus
in single phase.
1) The excitation voltage is E = 26.87 KV,
The generator delivring 60 MW. Compute the powe...
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