A synchronous generator in Y (star) configuration is directly connected to an infinite bus. The synchronous generator has an equivalent field voltage Ef = 35 angle of 70° KV (line to line), and a synchronous reactance of 12. Calculate the power delivered to the infinite bus by the generator. Calculate the pull over power
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- PowerWorid Simulator case Problem 3_60 duplicates Example 3.13 except that a resistance term of 0.06 per unit has been added to the transformer and 0.05 per unit to the transmission line. Since the system is no longer lossless, a field showing the real power losses has also been added to the oneline. With the LTC tap fixed at 1.05, plot the real power losses as the phase shift angle is varied from 10 to +10 degrees. What value of phase shift minimizes the system losses?With the same transformer banks as in Problem 3.47, Figure 3.41 shows the oneline diagram of a generator, a step-up transformer bank, a transmission line, a stepown transformer bank, and an impedan load. The generator terminal voltage is 15 kV (line-to-line). (a) Draw the per-phase equivalent circuit, aounting for phase shifts for positive-sequence operation. (b) By choosing the line-to-neutral generator terminal voltage as the reference, determine the magnitudes of the generator current, transmiss ion-line current, load current, and line-to-line load voltage. Also, find the three-phase complex power delivered to the load.• Zh = 100 ohm • Draw the pu reactance diagram by taking Ut(base) = 132kV, St(base) = 100MVA. If the 33 kV busbar voltage is kept constant at 30 kV and 0.8 inductive 50 MVA power is drawn from this bus, what is the voltage at the synchronous machine ends?
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- A 30 MVA, 13.2KV synchronous generator has a solidly grounded neutral. Its positive, negative and zero sequence impedances are 0.3, 0.4 and 0.05 p.u respectively 1-A 30 MVA, 13.2KV synchronous generator has a solidly grounded neutral. Its positive, negative and zero sequence impedances are 0.3, 0.4 and 0.05 p.u respectively 2-What value of reactance in p.u. must be placed in the generator neutral so that the fault current for a double line to ground fault shall not exceed the rated line current?Prepare a capacity outage Probability table for a 3 generator system with each having a capacity of 50MW. Forced Outage Rate for each unit is 0.05.A three-phase, wye-connected, 6.25kVA, 220-synchronous generator has a reactance of 8.4 ohms per phase. Using the rated KVA and voltage as base values, determine the per – unit reactance. Then refer this per – unit value to a 230 – V, 7.5 kVA base.