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Please use the formula: Ea=(Zs)(Ia) + Va to calculate the Power
Angle in letter B
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A 2000 V single-phase synchronous generator is being used as a backup generator outside a diagnostic...
A 2000 V single-phase synchronous generator is being used as a backup generator outside a diagnostic center. When the generator terminals are short-circuited and a field excitation current of 2.5 A is passed, the ammeter between the terminals read 100 A of full load current. If the terminals of the same generator are opened and the voltage across them is measured using a voltmeter, we get the value of 500 V with the same excitation current. The armature resistance is...
Question 5 (Svnchronous machines) a. A synchronous generator connected to an infinite grid has its frequency and terminal b. A six-pole, Y-connected three-phase synchronous machine rated 208 V (line-...
Question 5 (Svnchronous machines) a. A synchronous generator connected to an infinite grid has its frequency and terminal b. A six-pole, Y-connected three-phase synchronous machine rated 208 V (line-to- voltage fixed. What is the effect of increasing the excitation current in this case? line), 5500 VA has a synchronous reactance of 8 2 per phase at rated terminal voltage. It is operating as a generator connected to an infinite grid Determine the excitation voltage and the power angle if the...
Power system matlab code and hand solution
A \(30 \mathrm{KV}, 3\) phase, \(50 \mathrm{HZ}\) synchronous generator has a synchronous reactance of 9 \(\Omega\) phase and an armature resistance of \(2 \Omega\) phase. The generator is delivering 50 MVA at a 0.8 power factor lagging at the rated terminal voltage to an infinite bus.
a) Determine the excitation voltage \(E\) per phase and the power angle.
b) With excitation held constant at the value found in (a), the driving torque is reduced until the generator is delivering \(25...
b) A 1MW, 3300 V, 50 Hz, wye-connected, 3-ф, twenty four-pole, synchronous motor has a synchronous...
b) A 1MW, 3300 V, 50 Hz, wye-connected, 3-ф, twenty four-pole, synchronous motor has a synchronous reactance of 3.24 2 per phase. Assume armature resistance is negligible. This machine is connected to an infinite bus-bars at 3300 V. Its field excitation is adjusted to provide P.F-1 at rated load Calculate: 0 the internal generated voltage EA and armature current la at rated conditions (S marks) ii) the maximum power and torqu e that the motor can deliver with its Ir...
Problem 1: Synchronous Machine Generator and Motor Operation A 10 MVA, 2300 Volt (Line to line...
Problem 1: Synchronous Machine Generator and Motor Operation A 10 MVA, 2300 Volt (Line to line xms) uniform airgap synchronous machine has a synchronous reactance of 0.9 pu at 60 Hz and resistance may be neglected. The machine is connected to a 2300 Volt constant voltage, constant frequency source and operated as described below (a) Generator Operation - Find the power, reactive power, current, and the required internal voltage E for generator operation at rated volt-amperes and power factors of...
please answer 13.16 at rated load of unity power factor and rated terminal voltage, determine efficienc...
please answer 13.16
at rated load of unity power factor and rated terminal voltage, determine efficienc including field rheostat loss. Ans. 93.139 13.11 A generator under test is rated at 100 KVA, 3-phase, 60-Hz; 2,400 volts. (a) If driven b a de motor unexcited, the motor output is 1.26 KW. (b) If driven by a de motor, generato on open circuit and excited to generate rated potential, the motor output is 2.5 KW. ( Ifdriven by a de motor, generator...
3.1 When two four pole, 50 Hz synchronous generators are paralleled their phase displacement is 2...
3.1 When two four pole, 50 Hz synchronous generators are paralleled their phase displacement is 2 mechanical. The synchronous reactance of each machine is 10 n/phase and the common busbar voltage is 66kV. Calculs the s cho nisimlengud AN 2 A synchronous generator has a synchronous impedance of 2p and a resist ance of 0.01 p.u. It is connected to an infinite busbar of voltage 1 pu. through a transformer of reactance 01 pou. If the generated (no-load) emfis 1.1...
solve no: 3.14 , 3.16, 3.19 please show each step and solve for beginners 120 Power...
solve no: 3.14 , 3.16, 3.19
please show each step and solve for beginners
120 Power System Analysis 3.12. A single-phase system similar to that shown in Figure 3.11 has two transformers A-B a B-C connected by a line B feeding a load at the receiving end C. The ratings and parame ter values of the components are 500 V/1.5 kV, 9.6 kVA. leakage reactance 5 % 1.2 kV/120 V, 7.2 kVA, leakage reactance 4 % series impedance (0.5 +...
Question 5 (Svnchronous machines) a. A synchronous generator connected to an infinite grid has its frequency and terminal b. A six-pole, Y-connected three-phase synchronous machine rated 208 V (line-to- voltage fixed. What is the effect of increasing the excitation current in this case? line), 5500 VA has a synchronous reactance of 8 2 per phase at rated terminal voltage. It is operating as a generator connected to an infinite grid Determine the excitation voltage and the power angle if the...
b) A 1MW, 3300 V, 50 Hz, wye-connected, 3-ф, twenty four-pole, synchronous motor has a synchronous reactance of 3.24 2 per phase. Assume armature resistance is negligible. This machine is connected to an infinite bus-bars at 3300 V. Its field excitation is adjusted to provide P.F-1 at rated load Calculate: 0 the internal generated voltage EA and armature current la at rated conditions (S marks) ii) the maximum power and torqu e that the motor can deliver with its Ir...
Problem 1: Synchronous Machine Generator and Motor Operation A 10 MVA, 2300 Volt (Line to line xms) uniform airgap synchronous machine has a synchronous reactance of 0.9 pu at 60 Hz and resistance may be neglected. The machine is connected to a 2300 Volt constant voltage, constant frequency source and operated as described below (a) Generator Operation - Find the power, reactive power, current, and the required internal voltage E for generator operation at rated volt-amperes and power factors of...
please answer 13.16
at rated load of unity power factor and rated terminal voltage, determine efficienc including field rheostat loss. Ans. 93.139 13.11 A generator under test is rated at 100 KVA, 3-phase, 60-Hz; 2,400 volts. (a) If driven b a de motor unexcited, the motor output is 1.26 KW. (b) If driven by a de motor, generato on open circuit and excited to generate rated potential, the motor output is 2.5 KW. ( Ifdriven by a de motor, generator...
3.1 When two four pole, 50 Hz synchronous generators are paralleled their phase displacement is 2 mechanical. The synchronous reactance of each machine is 10 n/phase and the common busbar voltage is 66kV. Calculs the s cho nisimlengud AN 2 A synchronous generator has a synchronous impedance of 2p and a resist ance of 0.01 p.u. It is connected to an infinite busbar of voltage 1 pu. through a transformer of reactance 01 pou. If the generated (no-load) emfis 1.1...
solve no: 3.14 , 3.16, 3.19
please show each step and solve for beginners
120 Power System Analysis 3.12. A single-phase system similar to that shown in Figure 3.11 has two transformers A-B a B-C connected by a line B feeding a load at the receiving end C. The ratings and parame ter values of the components are 500 V/1.5 kV, 9.6 kVA. leakage reactance 5 % 1.2 kV/120 V, 7.2 kVA, leakage reactance 4 % series impedance (0.5 +...
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