Power System

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power system

A three-phase, 318.75-kVA, 2300-V alternator has an armature resistance of0.35 /phase and a synchronous reactance of 1.2 /phase. Determine the no-loadline-to-line generated voltage and the voltage regulation at(a) Full-load kVA, 0.8 power factor lagging, and rated voltage.(b) Full-load kVA, 0.6 power factor leading, and rated voltage
POWER SYSTEM

OBE-Assessment_E.pdf
Power System

A simple three-phase power system is shown in Figure 2. Assume that the ratings of the various devices in this system are as follows: • Generators G1, G2: 40 MVA, 13.2 kV, = 0.15 pu, = 0.15 pu, = 0.08 • Generator G3: 60 MVA, 13.8 kV, = 0.20 pu, 0.20 pu, - 0.08 • Transformers T1, T2, T3, T4: 40 MVA, 13.8/138 kV, X1 = X2 = 0.10 pu, XO 0.08 pu Transformers T5, T6: 30 MVA, 13.8/138 kV, X1 = X2...

Power system analysis

Figure shows a single-line diagram of a three-phase, 60-Hz synchronous generator, connected through a transformer and parallel transmission lines to an infinite bus. All reactances are given in perunit on a common system base. If the infinite bus receives 1.0 per unit real power at 0.95 p.f. lagging. If circuit breakers B13 and B22 are opened after three cycles and then reclosed when the power angle reaches 35°.123.png Assume ωpu(t) = 1.0 pu in the swing equation. Assume that the temporary...
Power System Analysis
INTRODUCTION TO POWER SYSTEM

1. The one-line diagram of a three-pha se power system is shown in Figure 3.29. Select a common base of 100 MVA and 15 kV on the motor side. Draw an impedance diagram with all impedances including the load impedance marked in per-unit. The manufacturer's data for each device is given as follow:The three-phase load at bus 4 absorbs 57 MVA, 0.6 power factor lagging at 10.45 kV. Line 1 and line 2 have reactances of 48.4 Ω and 65.43...

INTRODUCTION TO POWER SYSTEM

1. The one-line diagram of a three-pha se power system is shown in Figure 3.29. Select a common base of 100 MVA and 15 kV on the motor side. Draw an impedance diagram with all impedances including the load impedance marked in per-unit. The manufacturer's data for each device is given as follow:The three-phase load at bus 4 absorbs 57 MVA, 0.6 power factor lagging at 10.45 kV. Line 1 and line 2 have reactances of 48.4 Ω and 65.43...
the question in power system

For the transmission line mentioned in question 3, if each conductor in the bundle has a diameter of32.84 mm. Find:1- Total capacitive reactance per phase.2- Total charging MegaVolt Ampere.3- Find capacitance (F/m) for this 3-ph circuit taking into account the effect of earth if the height overground of this circuit is 20 m.
Power system matlab

Write a Matlab code to construct the capability curve of a synchronous machine showing all limits and stability margin. The code should be able to determine the power angle and the excitation voltage given the active and reactive generation of the machine. The inputs to your program are the following: - Rated synchronous generator power, S. - Mechanical power, \(\mathrm{P}^{\mathrm{mech}}\). - Rated terminal voltage, V. - Synchronous reactance, \(\mathrm{X}_{s}\) - Maximum excitation, \(\mathrm{E}^{\mathrm{max}}\) - Stability margin, Margin.

Regeneration of power is not possible in power electronic converter system?

Regeneration of power is not possible in power electronic converter system?