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4. A 60 Hz generator is supplying 70% of P max to an infinite bus through...
A 50 Hz, 250 MVA synchronous generator having inertia constant H=5 MJ/MVA is connected to an infinite bus through trans...
A 50 Hz, 250 MVA synchronous generator having inertia constant H=5 MJ/MVA is connected to an infinite bus through transformer and transmission line as shown below. The transformer reactance is based on 500 MVA, while the other impedances are based on the generator MVA Infinite bus 1 2 3 XL 0.1 pu - oto G1 V= 1.0 pu X 0.1 pu Xd = 0.3 pu at 500 MVA The generator is delivering 0.8 of full load current at a power...
Help Q4)A generator operating at 60 Hz delivers 1.0 pu power to an infinite bus through...
Help
Q4)A generator operating at 60 Hz delivers 1.0 pu power to an infinite bus through a transmission circuit in which resistance is ignored. A fault took place reducing the maximum power transferable to 0.5 p.u whereas before the fault, this power was p.u and after the clearance of the fault, it is 1.5 p.u. Using equal area criterion, determine the critical clearing angle. 2.0
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) Calculate the generator internal voltage E’ and the initial generator power angle δ prior to...
a) Calculate the generator internal voltage E’ and the initial
generator power angle δ prior to the fault.
b) Write the swing equation for the machine. What will be the
generator angle δ' at the instant when the fault is cleared after
0.1 s?
c)Determine whether the synchronous generator will remain stable
after the fault is cleared.
d) If the fault clearing is delayed, determine the critical
clearing angle and critical clearing time.
= A 50 Hz synchronous generator with...
A synchronous generator is connected to an infinite bus via a transformer and a network of...
A synchronous generator is connected to an infinite bus via a transformer and a network of transmission lines, as illustrated in Figure 1 below. Per unit reactances for all elements are shown to a common system base. The generator is delivering 1.1 per unit real power to the infinite bus, and the infinite bus voltage is regulated to 1.05 per unit. The excitation voltage of the synchronous generator is set to 1.30 per unit. The inertia constant of the generator...
A remote generator transmits energy to a major load/generation via a system shown in the drawing....
A remote generator transmits energy to a major load/generation via a system shown in the drawing. Assume the generators voltage behind transient reactance to be 1.1pu, the infinite bus voltage to be 1.0 pu and the power transfer to be 0.3 pu during the steady state condition of the network. The line reactance is j0. 5 pu per line and the transient reactance of the generator isj0. 2 pu. The normalised constant of the generator H- 3KWS7KVA A 3 phase...
Problem 2. A 3-phase star-connected turbo-generator feeds power to 11 kV infinite bus, through two parallel...
Problem 2. A 3-phase star-connected turbo-generator feeds power to 11 kV infinite bus, through two parallel transmission lines each having a reactance of452. The generator synchronous reactance is 3 Ω. (a) The mechanical input to alternator and its excitation are adjusted as that the operating power factor at alternator terminals is unity and rated current of 500 A is delivered. Calculate the alternator terminal and excitation voltages. Also determine the active and reactive powers delivered to the infinite bus. (b)...
(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...
XTR-0.10 B12 X12-0.20 B21 V= 1-0 x,-0.30 X23-0.20 B13 X13-0.10 B22 Fig. 1. Single-machine infinit...
XTR-0.10 B12 X12-0.20 B21 V= 1-0 x,-0.30 X23-0.20 B13 X13-0.10 B22 Fig. 1. Single-machine infinite bus system (Simple system-I) 1. The synchronous generator in Fig.1 delivers 0.8 p.u. real power at 0.85 power factor leading at voltage at infinite bus (1.0 р.u. voltage). Determine a) The real and reactive power output of the generator b) The generator internal voltage c) An equation for the electrical power delivered by the generator as a function of 8. d) For a three-phase-to ground...
A 100MVA synchronous generator is connected to a 25kV infinite bus through two parallel transmission lines....
A 100MVA synchronous generator is connected to a 25kV infinite bus through two parallel transmission lines. The synchronous reactance of the generator is 2.5Ω. Each transmission line has inductive reactance of 2Ω and 0.2Ω resistance. The generator delivers 90MVA to the infinite bus at 0.8 power factor lagging. For the above conditions, calculate: a. The terminal voltage of the generator b. The equivalent field voltage and power angle c. The real power output at the generator terminals d. The reactive...
A 50 Hz, 250 MVA synchronous generator having inertia constant H=5 MJ/MVA is connected to an infinite bus through transformer and transmission line as shown below. The transformer reactance is based on 500 MVA, while the other impedances are based on the generator MVA Infinite bus 1 2 3 XL 0.1 pu - oto G1 V= 1.0 pu X 0.1 pu Xd = 0.3 pu at 500 MVA The generator is delivering 0.8 of full load current at a power...
Help
Q4)A generator operating at 60 Hz delivers 1.0 pu power to an infinite bus through a transmission circuit in which resistance is ignored. A fault took place reducing the maximum power transferable to 0.5 p.u whereas before the fault, this power was p.u and after the clearance of the fault, it is 1.5 p.u. Using equal area criterion, determine the critical clearing angle. 2.0
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) Calculate the generator internal voltage E’ and the initial
generator power angle δ prior to the fault.
b) Write the swing equation for the machine. What will be the
generator angle δ' at the instant when the fault is cleared after
0.1 s?
c)Determine whether the synchronous generator will remain stable
after the fault is cleared.
d) If the fault clearing is delayed, determine the critical
clearing angle and critical clearing time.
= A 50 Hz synchronous generator with...
A synchronous generator is connected to an infinite bus via a transformer and a network of transmission lines, as illustrated in Figure 1 below. Per unit reactances for all elements are shown to a common system base. The generator is delivering 1.1 per unit real power to the infinite bus, and the infinite bus voltage is regulated to 1.05 per unit. The excitation voltage of the synchronous generator is set to 1.30 per unit. The inertia constant of the generator...
A remote generator transmits energy to a major load/generation via a system shown in the drawing. Assume the generators voltage behind transient reactance to be 1.1pu, the infinite bus voltage to be 1.0 pu and the power transfer to be 0.3 pu during the steady state condition of the network. The line reactance is j0. 5 pu per line and the transient reactance of the generator isj0. 2 pu. The normalised constant of the generator H- 3KWS7KVA A 3 phase...
Problem 2. A 3-phase star-connected turbo-generator feeds power to 11 kV infinite bus, through two parallel transmission lines each having a reactance of452. The generator synchronous reactance is 3 Ω. (a) The mechanical input to alternator and its excitation are adjusted as that the operating power factor at alternator terminals is unity and rated current of 500 A is delivered. Calculate the alternator terminal and excitation voltages. Also determine the active and reactive powers delivered to the infinite bus. (b)...
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...
XTR-0.10 B12 X12-0.20 B21 V= 1-0 x,-0.30 X23-0.20 B13 X13-0.10 B22 Fig. 1. Single-machine infinite bus system (Simple system-I) 1. The synchronous generator in Fig.1 delivers 0.8 p.u. real power at 0.85 power factor leading at voltage at infinite bus (1.0 р.u. voltage). Determine a) The real and reactive power output of the generator b) The generator internal voltage c) An equation for the electrical power delivered by the generator as a function of 8. d) For a three-phase-to ground...
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