Homework Answers
Add Answer to:
3. A 722-MVA, 19-kV steam turbine generator has a per-phase synchronous reactance of 1.3 PU, and...
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 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...
Problem #2: A three-phase synchronous generator is rated 16 kV and 200 MVA, has negligible losses...
Problem #2: A three-phase synchronous generator is rated 16 kV and 200 MVA, has negligible losses and has reactance of 1.65 pu. The generator is operated on an infinite bus of 15 kV voltage and delivers 100 MVA at 0.8 Power Factor, lagging. a)Determine the internal voltage (E_i), the power angle (5), and the line current of the machine. b)If the field current of the machine is reduced by 10%, while the mechanical power input to the machine is maintained...
QUESTION 5 A 3-phase, 22 kV (phase), 500 MVA star-connected synchronous generator has a per phase...
QUESTION 5 A 3-phase, 22 kV (phase), 500 MVA star-connected synchronous generator has a per phase reactance Xg of 1.5 pu and supplies 0.8 pu per phase real power (P) at the rated voltage, with a lagging power factor of 0.6 to the load. Find the actual excitation voltage Vo in kV (line value). 96.392
A 13.8 kV, 10 MVA, 0.8 pf lagging, 60 Hz two-pole star-connected steam-turbine generator has a...
A 13.8 kV, 10 MVA, 0.8 pf lagging, 60 Hz two-pole star-connected steam-turbine generator has a synchronous reactance of 12 Ω per phase and an armature resistance of 1.5 Ω per phase. This generator is operating in parallel with a large power system (infinite bus). At the absolute maximum power possible, how much reactive power will this generator be supplying or consuming? Sketch the corresponding phasor diagram. (Assume IF is still unchanged.)
A 60-MVA, 69.3-kV, three-phase synchronous generator has a synchronous reactance of 15 Ω/phase and negligible armature...
A 60-MVA, 69.3-kV, three-phase synchronous generator has a synchronous reactance of 15 Ω/phase and negligible armature resistance. -a. The generator is delivering rated power at 0.8 power factor lagging at the rated terminal voltage to an infinite bus bar. Determine the magnitude of the generated emfper phase and the power angle δ. -b. If the generated emfis 36 kV per phase, what is the maximum three-phase power that the generator can deliver before losing its synchronism? Winter
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....
A 3-phase, 1000-MVA, 20-kV, 60-Hz synchronous generator is connected to an infinite bus as shown below. All impedances are given in pu values. The generator delivers 0.9 pu power at unity power factor to the infinite bus whose voltage is at 1 p
A 3-phase, 1000-MVA, \(20-\mathrm{kV}, 60-\mathrm{Hz}\) synchronous generator is connected to an infinite bus as shown below. All impedances are given in pu values. The generator delivers \(0.9\) pu power at unity power factor to the infinite bus whose voltage is at 1 pu.If phase 'A' of circuit 2 (CCT 2) between buses H1 and H2 is suddenly opened at point ' \(\mathrm{F}\) ' near bus H1 due to the opening of a circuit breaker, determine:(a) [10 marks] The internal voltage...
Question 2 A 60 Hz synchronous generator with Xd 0.2 pu transient reactance is connected to...
Question 2 A 60 Hz synchronous generator with Xd 0.2 pu transient reactance is connected to an infinite us through a transformer and the transmisiones as shown in the Figure. All system reactances are marked on the diagram and are expressed on a common MVA base. The generator dies a power of Auto busbar 1. The magnitude of the generator's excitation voltage e'is 12 pu, and the infinite bus voltage is -1.00u. If a 3-phase fault occurs at the middle...
A 3φ, 14 kV, 10 MVA, 60 Hz, 2-pole. 0.85 PF lagging, wye-connected, synchronous generator has...
A 3φ, 14 kV, 10 MVA, 60 Hz, 2-pole. 0.85 PF lagging, wye-connected, synchronous generator has X-20 Ω per phase and Ra 2 Ω per phase. The generator is connected to an infinite bus (a) (i) Determine the excitation voltage at the rated condition (ii) Draw the phasor diagram for the condition (b) Determine the torque angle at the rated condition (c) If the field current is kept constant, determine the maximum power the generator can supply (d) (i) For...
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 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...
Problem #2: A three-phase synchronous generator is rated 16 kV and 200 MVA, has negligible losses and has reactance of 1.65 pu. The generator is operated on an infinite bus of 15 kV voltage and delivers 100 MVA at 0.8 Power Factor, lagging. a)Determine the internal voltage (E_i), the power angle (5), and the line current of the machine. b)If the field current of the machine is reduced by 10%, while the mechanical power input to the machine is maintained...
QUESTION 5 A 3-phase, 22 kV (phase), 500 MVA star-connected synchronous generator has a per phase reactance Xg of 1.5 pu and supplies 0.8 pu per phase real power (P) at the rated voltage, with a lagging power factor of 0.6 to the load. Find the actual excitation voltage Vo in kV (line value). 96.392
Question 2 A 60 Hz synchronous generator with Xd 0.2 pu transient reactance is connected to an infinite us through a transformer and the transmisiones as shown in the Figure. All system reactances are marked on the diagram and are expressed on a common MVA base. The generator dies a power of Auto busbar 1. The magnitude of the generator's excitation voltage e'is 12 pu, and the infinite bus voltage is -1.00u. If a 3-phase fault occurs at the middle...
A 3φ, 14 kV, 10 MVA, 60 Hz, 2-pole. 0.85 PF lagging, wye-connected, synchronous generator has X-20 Ω per phase and Ra 2 Ω per phase. The generator is connected to an infinite bus (a) (i) Determine the excitation voltage at the rated condition (ii) Draw the phasor diagram for the condition (b) Determine the torque angle at the rated condition (c) If the field current is kept constant, determine the maximum power the generator can supply (d) (i) For...
Most questions answered within 3 hours.
-
Exercise 5-22A Complete the accounting cycle using receivable
transactions (LO5–1, 5–2, 5–4, 5–5, 5–7) [The following...
asked 26 minutes ago -
Do you agree with the view that small businesses are more
vulnerable to employee theft because...
asked 46 minutes ago -
Four forces act on an object, given by A = 41.3 N east, B = 46.3...
asked 1 hour ago -
Which of the following design considerations leads to more
user-friendly presentation layers for GUIs? [Check all...
asked 2 hours ago -
38%
of adults say cashews are their favorite kind of nut. You
randomly select 12 adults...
asked 4 hours ago -
Notational Inc. is considering installing a new server. The
machine costs $100,000 and is expected to...
asked 4 hours ago -
Given the information coding of DNA strand:
5'-TTT-TAC-GAA-GAG-TGA-3',
Write the corresponding DNA template and mRNA strand...
asked 4 hours ago -
2. Boris recently synthesized an explosive compound he named
Badenoughium. The molecular formula for Bdenoughium is...
asked 8 hours ago -
5. A car decelerate evenly from a velocity of 50mph until rest
in a distance of...
asked 8 hours ago -
IN HTML Programming
1. Write a script that inputs integers (one at a time) and
passes...
asked 8 hours ago -
A dentist uses a mirror to examine a tooth that is 0.75 cm in
front of...
asked 8 hours ago -
You set up a 100,000 line of credit for the business on 1/1/X8,
annual interest is...
asked 8 hours ago