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Problem 8 Two transformers rated at 250 k VA, 2.4 k V/ 1600...
3. Two transformers rated at 250 kVA, 2.4 kV/600 V are connected in open-delta to supply...
3. Two transformers rated at 250 kVA, 2.4 kV/600 V are connected in open-delta to supply a load of 400 kVA a. Are the transformers overloaded? b. What is the maximum load the bank can carry on a continuous basis?
2. In order to meet an emergency, three single-phase transformers rated 100 kVA (each), 13.2 kV/2.4...
2. In order to meet an emergency, three single-phase transformers rated 100 kVA (each), 13.2 kV/2.4 kV are connected in Y-∆ on a 3-phase, 20 kV line. a. What is the maximum load that can connected to the transformer bank? b. What is the outgoing line voltage?
Three single-phase transformers rated at 250 kVA, 7200 V/600 V, 60 Hz, are connected in wye- delta on a 12.47 kv, 3-phase line. If the load is 450 kVA, calculate: a. The currents in the incoming a...
Three single-phase transformers rated at 250 kVA, 7200 V/600 V, 60 Hz, are connected in wye- delta on a 12.47 kv, 3-phase line. If the load is 450 kVA, calculate: a. The currents in the incoming and outgoing transmission lines b. The currents in the primary and secondary windings 1. sratod t 200 w 3o0 v/6oO V 60 Hz are used to raise the
Three single-phase transformers rated at 250 kVA, 7200 V/600 V, 60 Hz, are connected in wye-...
1. In order to meet an emergency, three single-phase transformers with 12.470/7.200 V are connected in...
1. In order to meet an emergency, three single-phase transformers with 12.470/7.200 V are connected in Delta-Wye to form a three-phase transformer which is fed by a 12.470 V transmission line. If the transformer supplies 60 MVA to a load, calculate: (3 marks) a. The turns ratio for each transformer b. The currents in the primary and secondary windings of the transformer c. The primary and secondary transmission line currents 2. A Wye-Delta transformer is connected to a 66 kV...
Please answer question 4 with the graph and info given below the problem statement. Thank you : ) 4. Assume that the generator field current is adjusted to supply 480 V under rated condi- tions. Wha...
Please answer question 4 with the graph and info given below the
problem statement. Thank you : )
4. Assume that the generator field current is adjusted to supply 480 V under rated condi- tions. What is the static stability limit of this generator? (Note: You may ignore RA to make this calculation easier.) How close is the full-load condition of this generator to the static stability limit? Problems 2 to 4 refer to a four-pole, Y-connected synchronous generator rated...
can you calculate this question and explain why? thanks 1. A 250-kVA, 11000/2200-V, 50-Hz, single-phase transformer...
can you calculate this question and explain why?
thanks
1. A 250-kVA, 11000/2200-V, 50-Hz, single-phase transformer has the following parameters: RI 1.3 , R2 0.05 , Rel 193 k2, X1 4.5 Q X2 0.16 2 I,- 80 kQ Xml (a) Draw the approximate equivalent circuit of the transformer showing all the circuit parameters referred to the low-voltage side. Use the approximate equivalent circuit to calculate the input voltage and voltage regulation of the transformer when it delivers full load at...
A 400 v, 50 Hz, three phase alternator, rated at 75 kVA, is star connected and...
A 400 v, 50 Hz, three phase alternator, rated at 75 kVA, is star connected and driven at 1000 r/min. The windings of the alternator have a resistance, per phase, of 0.03 Ω and synchronous reactance, at 50 Hz per phase, of j0.325 Ω. The stator of the alternator has 108 slots, with 8 conductors, per slots, in a double layer. The maximum pole flux is 8.772 x 10-3 Wb. To improve the wave form only 80% of the pole...
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 +...
Vsig = 36 V Rsig = 25 kOhms RL = 8 Ohms Amplifier2Speaker sig Rsig sig...
Vsig = 36 V
Rsig = 25 kOhms
RL = 8 Ohms
Amplifier2Speaker sig Rsig sig 7 Y K Vout kis on Vost peut & Given: 1. The 1-port defined by the dashed box represents an audio amplifier with an attached loudspeaker. The parameters Vsig and Rig are fixed (given in the parameter file) with non-zero values. The two dependent sources constitute a model for a device called an Ideal Transformer, which you will learn more about in ECE 2020...
(might be 1 or 2, MCQ questions were having images given with them, which we couldn't...
(might be 1 or 2, MCQ questions were having images given with them, which we couldn't insert, so ignore those questions if you cannot answer, sorry for inconveinience created, i tried to delete them but might be couldn't done all) 3) Single phase induction motors work because: a) The oscillating magnetic field can induce starting torque in a rotor. b) The oscillating magnetic field can induce running torque in a rotor. c) A capacitance or inductance can create the phase...
3. Two transformers rated at 250 kVA, 2.4 kV/600 V are connected in open-delta to supply a load of 400 kVA a. Are the transformers overloaded? b. What is the maximum load the bank can carry on a continuous basis?
Three single-phase transformers rated at 250 kVA, 7200 V/600 V, 60 Hz, are connected in wye- delta on a 12.47 kv, 3-phase line. If the load is 450 kVA, calculate: a. The currents in the incoming and outgoing transmission lines b. The currents in the primary and secondary windings 1. sratod t 200 w 3o0 v/6oO V 60 Hz are used to raise the
Three single-phase transformers rated at 250 kVA, 7200 V/600 V, 60 Hz, are connected in wye-...
1. In order to meet an emergency, three single-phase transformers with 12.470/7.200 V are connected in Delta-Wye to form a three-phase transformer which is fed by a 12.470 V transmission line. If the transformer supplies 60 MVA to a load, calculate: (3 marks) a. The turns ratio for each transformer b. The currents in the primary and secondary windings of the transformer c. The primary and secondary transmission line currents 2. A Wye-Delta transformer is connected to a 66 kV...
Please answer question 4 with the graph and info given below the
problem statement. Thank you : )
4. Assume that the generator field current is adjusted to supply 480 V under rated condi- tions. What is the static stability limit of this generator? (Note: You may ignore RA to make this calculation easier.) How close is the full-load condition of this generator to the static stability limit? Problems 2 to 4 refer to a four-pole, Y-connected synchronous generator rated...
can you calculate this question and explain why?
thanks
1. A 250-kVA, 11000/2200-V, 50-Hz, single-phase transformer has the following parameters: RI 1.3 , R2 0.05 , Rel 193 k2, X1 4.5 Q X2 0.16 2 I,- 80 kQ Xml (a) Draw the approximate equivalent circuit of the transformer showing all the circuit parameters referred to the low-voltage side. Use the approximate equivalent circuit to calculate the input voltage and voltage regulation of the transformer when it delivers full load at...
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 +...
Vsig = 36 V
Rsig = 25 kOhms
RL = 8 Ohms
Amplifier2Speaker sig Rsig sig 7 Y K Vout kis on Vost peut & Given: 1. The 1-port defined by the dashed box represents an audio amplifier with an attached loudspeaker. The parameters Vsig and Rig are fixed (given in the parameter file) with non-zero values. The two dependent sources constitute a model for a device called an Ideal Transformer, which you will learn more about in ECE 2020...
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