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5. [Synchronous Generator - 15 points) A 200-kVA, 480-V 50-Hz, Y-connected synchronous generator with a rated...
5. [Synchronous Generator - 15 points] A 200-kVA, 480-V 50-Hz, Y-connected synchronous generator with a rated...
5. [Synchronous Generator - 15 points] A 200-kVA, 480-V 50-Hz, Y-connected synchronous generator with a rated field current of 5 A was tested, and the following data were taken: a. Vocat rated I was measured to be 500 V b. IL,se at the rated IF was found to be 250 A. c. When a de voltage of 20 V was applied to two of the terminals, a current of 45 A was measured. Draw per phase equivalent circuit of the...
A 200 - kVA, 480 V, 50 Hz, Y connected synchronous generator with a rated field...
A 200 - kVA, 480 V, 50 Hz, Y connected synchronous
generator with a rated field current of 5 A was tested. The
following data were taken
VT,oc at rated IF was measured to be 500 V
IL,sc at the rated IF was found to be 250 A
When a rated DC voltage of 20 V was applied to 2 of
the terminals, a current of 45 A was measured.
Draw the per phase equivalent circuit of the generator
at...
A 480 V, 60 Hz, 470 kVA, 0.85 PF lagging, 2-pole, Y-connected synchronous generator has a...
A 480 V, 60 Hz, 470 kVA, 0.85 PF lagging, 2-pole,
Y-connected synchronous generator has a synchronous reactance of
XS=0.016 Ω and an armature resistance of RA=0.016 Ω. At rated
conditions the core losses are 7 kW. Friction losses and field
winding losses are 8 kW. Suppose the machine is connected to an
infinite bus (hence the terminal voltage is fixed) and it is
running at the rated conditions.
a) What is the rotor speed in rpm?
b) Calculate the...
A 480 V, 375 kVA, Y-connected synchronous generator has a synchronous reactance of 0.4 Ω and a ne...
Please correctly answer question and post all steps! Will rate!
Thanks!
A 480 V, 375 kVA, Y-connected synchronous generator has a synchronous reactance of 0.4 Ω and a negligible armature resistance. This generator is supplying power to a 480 V, 80 kW, Y-connected synchronous motor with a synchronous reactance of 1.1 Ω and a negligible armature resistance. The synchronous generator is adjusted to have a terminal voltage of 480 V when the motor is drawing the rated power at unity...
3. A 480 V, 60 Hz, 470 kVA, 0.85 PF lagging, 2-pole, Y-connected synchronous generator has...
3. A 480 V, 60 Hz, 470 kVA, 0.85 PF lagging, 2-pole, Y-connected synchronous generator has a synchronous reactance of Xs=0.0162 and an armature resistance of RA=0.0.1622. At rated conditions the core losses are 7 kW. Friction losses and field winding losses are 8 kW. Suppose the machine is connected to an infinite bus (hence the terminal voltage is fixed) and it is running at the rated conditions. a) What is the rotor speed in rpm? b) Calculate the phase...
Assignment 4 An 11 kV, 50-Hz, Y-connected synchronous generator has a synchronous reactance of Xs-0.5Ω and...
Assignment 4 An 11 kV, 50-Hz, Y-connected synchronous generator has a synchronous reactance of Xs-0.5Ω and armature resistance, Ra-005Ω. The terminal voltage in all working conditions is assumed constant and equal to the rated voltage. The generator is delivering a load current of 2000A at 0.8 PF leading a. Draw the per-phase equivalent circuit of the generator. b. Calculate the induced EMF, EA. c. Calculate the real and reactive power delivered at the generator terminals. d. Sketch the phasor diagram...
A 480-V, 50-Hz, Y-connected, 6-pole synchronous generator has a synchronous reactance of 1 Ohm. Its full...
A 480-V, 50-Hz, Y-connected, 6-pole synchronous generator has a synchronous reactance of 1 Ohm. Its full load armature current is 60 A at 0.8 pf lagging. Under full load conditions, the friction and windage losses are 1.5 kW, and core losses are 1 kW at 50 Hz. Ignore armature copper losses. The field has been adjusted so that the terminal voltage is 480 V at no load. a.What is the speed of rotation of this gen? b.What is the generator...
A 1500-kVA, 6.6 kV, 50 Hz, 6-pole, three-phase, star-connected synchronous generator has a resistance 0.5Q/phase and a...
A 1500-kVA, 6.6 kV, 50 Hz, 6-pole, three-phase, star-connected
synchronous generator has a resistance 0.5Q/phase and a synchronous
reactance of 5Q/phase. The generator is supplying its rated power
at its rated voltage and at a power factor lagging. The rotational
loss is 2 kW. Calculate:
(a) the power developed,
(b) the power angle,
(c) the voltage regulation, and
(d) the shaft torque.
A 1500-kVA, 6.6 kV, 50 Hz, 6-pole, three-phase, star-connected synchronous generator has a resistance 0.50/phase and a synchronous...
Need to answer (5-13) Problems 5-11 to 5-21 refer to a four-pole. Y-connected synchronous generalor rated...
Need to answer (5-13) Problems 5-11 to 5-21 refer to a four-pole. Y-connected synchronous generalor rated a 470 kVA. 480 V. 60 Hz. and 085PFlagging. Its armature resistance R. n0016 The core losses of this generator at rated conditions are 7 kW and the friction and windage losses are 8 kW. The open-circuit and shont-circuit characteristics are shown in Figure PS-2 S-11. (a) What is the saturated synchronous reactance of this gencrator at the rated conditions? (b) What is the...
1: PO2C Q39 A 300-KVA, 440-V, 50-Hz, 3-phase synchronous generator is Y-connected with Ra = 0.22...
1: PO2C Q39 A 300-KVA, 440-V, 50-Hz, 3-phase synchronous generator is Y-connected with Ra = 0.22 /ph and Xs = 0.58 2/ph. (1) Determine the voltage regulation for a 0.9 power factor (lag) load of 300-KVA at 440-V. (2) Find the power angle at this load condition. Answer: (1) = %; and (2) = (Please round up the answer to 3 decimal places).
5. [Synchronous Generator - 15 points] A 200-kVA, 480-V 50-Hz, Y-connected synchronous generator with a rated field current of 5 A was tested, and the following data were taken: a. Vocat rated I was measured to be 500 V b. IL,se at the rated IF was found to be 250 A. c. When a de voltage of 20 V was applied to two of the terminals, a current of 45 A was measured. Draw per phase equivalent circuit of the...
A 200 - kVA, 480 V, 50 Hz, Y connected synchronous
generator with a rated field current of 5 A was tested. The
following data were taken
VT,oc at rated IF was measured to be 500 V
IL,sc at the rated IF was found to be 250 A
When a rated DC voltage of 20 V was applied to 2 of
the terminals, a current of 45 A was measured.
Draw the per phase equivalent circuit of the generator
at...
A 480 V, 60 Hz, 470 kVA, 0.85 PF lagging, 2-pole,
Y-connected synchronous generator has a synchronous reactance of
XS=0.016 Ω and an armature resistance of RA=0.016 Ω. At rated
conditions the core losses are 7 kW. Friction losses and field
winding losses are 8 kW. Suppose the machine is connected to an
infinite bus (hence the terminal voltage is fixed) and it is
running at the rated conditions.
a) What is the rotor speed in rpm?
b) Calculate the...
Please correctly answer question and post all steps! Will rate!
Thanks!
A 480 V, 375 kVA, Y-connected synchronous generator has a synchronous reactance of 0.4 Ω and a negligible armature resistance. This generator is supplying power to a 480 V, 80 kW, Y-connected synchronous motor with a synchronous reactance of 1.1 Ω and a negligible armature resistance. The synchronous generator is adjusted to have a terminal voltage of 480 V when the motor is drawing the rated power at unity...
3. A 480 V, 60 Hz, 470 kVA, 0.85 PF lagging, 2-pole, Y-connected synchronous generator has a synchronous reactance of Xs=0.0162 and an armature resistance of RA=0.0.1622. At rated conditions the core losses are 7 kW. Friction losses and field winding losses are 8 kW. Suppose the machine is connected to an infinite bus (hence the terminal voltage is fixed) and it is running at the rated conditions. a) What is the rotor speed in rpm? b) Calculate the phase...
Assignment 4 An 11 kV, 50-Hz, Y-connected synchronous generator has a synchronous reactance of Xs-0.5Ω and armature resistance, Ra-005Ω. The terminal voltage in all working conditions is assumed constant and equal to the rated voltage. The generator is delivering a load current of 2000A at 0.8 PF leading a. Draw the per-phase equivalent circuit of the generator. b. Calculate the induced EMF, EA. c. Calculate the real and reactive power delivered at the generator terminals. d. Sketch the phasor diagram...
A 1500-kVA, 6.6 kV, 50 Hz, 6-pole, three-phase, star-connected
synchronous generator has a resistance 0.5Q/phase and a synchronous
reactance of 5Q/phase. The generator is supplying its rated power
at its rated voltage and at a power factor lagging. The rotational
loss is 2 kW. Calculate:
(a) the power developed,
(b) the power angle,
(c) the voltage regulation, and
(d) the shaft torque.
A 1500-kVA, 6.6 kV, 50 Hz, 6-pole, three-phase, star-connected synchronous generator has a resistance 0.50/phase and a synchronous...
Need to answer (5-13) Problems 5-11 to 5-21 refer to a four-pole. Y-connected synchronous generalor rated a 470 kVA. 480 V. 60 Hz. and 085PFlagging. Its armature resistance R. n0016 The core losses of this generator at rated conditions are 7 kW and the friction and windage losses are 8 kW. The open-circuit and shont-circuit characteristics are shown in Figure PS-2 S-11. (a) What is the saturated synchronous reactance of this gencrator at the rated conditions? (b) What is the...
1: PO2C Q39 A 300-KVA, 440-V, 50-Hz, 3-phase synchronous generator is Y-connected with Ra = 0.22 /ph and Xs = 0.58 2/ph. (1) Determine the voltage regulation for a 0.9 power factor (lag) load of 300-KVA at 440-V. (2) Find the power angle at this load condition. Answer: (1) = %; and (2) = (Please round up the answer to 3 decimal places).
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