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Problem 2: The waveforms of voltage and current at a single phase load are recorded and...
Problem 5 The waveforms of the line-to-line voltage and line current of a three-phase transmission line...
Problem 5 The waveforms of the line-to-line voltage and line current of a three-phase transmission line connected to a delta-load are Ubc-Vmax sin(a) t + 5π/ 18) , /9) A ia-Imax sin(wt + 2π Compute the power factor angle in degrees.
exc D) Name Problem 1 (40 points) A small single-phase gencrator is connected to a load...
exc D)
Name Problem 1 (40 points) A small single-phase gencrator is connected to a load whose impedance is 25/-15 Q. The generator voltage is 220 V. Determine: A. The resistance and reactance of the load B. The real and reactive power absorbed by the load C. The power factor and whether it is lagging or leading D. The impedance and the real and reactive power in per unit for a base of 220 V & 100 VA 543.
20. The voltage and current in an electrical load is given by v(t) = 100 cos(wt...
20. The voltage and current in an electrical load is given by v(t) = 100 cos(wt + 15°) and i(t) = 2 cos(wt – 15°). The reactive power Q in the load is 21. An electrical load absorbs an average power of 8kW at a leading power factor of 0.8. The reactive power in the load is 22. A balanced Y-connected load with an impedance of 104–30°N? per phase is supplied by a balanced A-connected source with Va = 208/30°V...
i want the answer with detales Single-Phase Controlled Rectifier Exercise Derive the expressions of the average...
i want the answer with detales
Single-Phase Controlled Rectifier Exercise Derive the expressions of the average load voltage and current in single-phase half-wave controlled rectifiers and resistive load. Draw the waveforms of supply voltage. output voltage, output current, thyristor voltage and thyristor current Exercise In a single-phase half-wave controlled rectifier and resistive kad, it is desired to get an average load voltage of 80 V. Determine the firing angle if the ac supply voltage is 230 V. If the load...
Question 1 (1 point) The voltage across a single phase load is v(t)=215 cos(315t). The load...
Question 1 (1 point) The voltage across a single phase load is v(t)=215 cos(315t). The load is consuming 1150+j1030 power. Find the value of a capacitor such that if it was connected in parallel across the load and voltage source, the resulting power factor at the voltage source would be 0.93 lagging.
4. Three ideal single-phase transformers are connected as shown below. The turns ratio of each single-phase...
4. Three ideal single-phase transformers are connected as shown below. The turns ratio of each single-phase transformer is 2400/480. Assume a perfectly balanced three- phase system (with ABC sequence) and that the delta side is the high-voltage side. (a) If IA is 8 amperes at 20 degrees, determine the phasor current Ix. (b) If the three-phase load is 100 kW at 0.87 lagging power factor and 465 V, determine how much current is flowing in the primary winding of T3....
Text problem 2.4: A single-phase source supplies a load of R 25 2 and a reactance...
Text problem 2.4: A single-phase source supplies a load of R 25 2 and a reactance of Xc - are commected in paralel. The " 15 2, both of which are connected in parallel. The voltage across the combination is v(t) - v2(120) cos(wt -45°) v. a) Find V, the total current I, instantaneous current i(t), and the complex power. b) Repeat a) if instead of the capacitive reactance we had inductive reactance of XL = 20 Ω (Partial answer:...
A single circuit three phase transmission line which is 110miles long and made of Ostrich Problem 2: single circuit, three phase transmission line which is 110 miles long and made of Ostrich cond...
A single circuit three phase transmission line which is
110miles long and made of Ostrich
Problem 2: single circuit, three phase transmission line which is 110 miles long and made of Ostrich conduction ivers 70 MVA of power to a load with power factor of 0.85 lagging. If the V Lu is 169 KV and the spacing between each phase of conductors is 12.2 ft, determine: a) The line constants (ABCD) The sending end voltage, current, real and reactive power...
Problem 04: A voltage source is expressed by the following Fourier series: v(t) = -2 +...
Problem 04: A voltage source is expressed by the following Fourier series: v(t) = -2 + 5* sin(t) – 5*cos(t) – 3* sin(2*t) + 4*cos(2*t) – sin(3*t) – 6*cos(3*t) + 4*sin(4*t) + 6*cos(4*t). Now, (a) Express v(t) in amplitude-phase form. (b) Draw the amplitude and phase spectra of v(t) (c) Determine the effective value (rms value) of the voltage v(t) (d) If the voltage is applied across an impedance block as shown in the circuit below, determine the average power...
b. Consider the single-phase fully controlled of thyristor bridge rectifier supplies a load consists of R-L...
b. Consider the single-phase fully controlled of thyristor bridge rectifier supplies a load consists of R-L load and Vee in series as shown in Figure Q2 (b). The parameters for this circuit are as follows: supply voltage is 120 Vrms at 60 Hz, DC voltage, Voe equal to 10 v. i. Sketch the waveforms for output voltage, thyristor current, diode current and output current (CO2: PO2 - 5 marks) Calculate the output voltage, Va at a = Tt/2. (CO2: PO2...
Problem 5 The waveforms of the line-to-line voltage and line current of a three-phase transmission line connected to a delta-load are Ubc-Vmax sin(a) t + 5π/ 18) , /9) A ia-Imax sin(wt + 2π Compute the power factor angle in degrees.
exc D)
Name Problem 1 (40 points) A small single-phase gencrator is connected to a load whose impedance is 25/-15 Q. The generator voltage is 220 V. Determine: A. The resistance and reactance of the load B. The real and reactive power absorbed by the load C. The power factor and whether it is lagging or leading D. The impedance and the real and reactive power in per unit for a base of 220 V & 100 VA 543.
20. The voltage and current in an electrical load is given by v(t) = 100 cos(wt + 15°) and i(t) = 2 cos(wt – 15°). The reactive power Q in the load is 21. An electrical load absorbs an average power of 8kW at a leading power factor of 0.8. The reactive power in the load is 22. A balanced Y-connected load with an impedance of 104–30°N? per phase is supplied by a balanced A-connected source with Va = 208/30°V...
i want the answer with detales
Single-Phase Controlled Rectifier Exercise Derive the expressions of the average load voltage and current in single-phase half-wave controlled rectifiers and resistive load. Draw the waveforms of supply voltage. output voltage, output current, thyristor voltage and thyristor current Exercise In a single-phase half-wave controlled rectifier and resistive kad, it is desired to get an average load voltage of 80 V. Determine the firing angle if the ac supply voltage is 230 V. If the load...
Question 1 (1 point) The voltage across a single phase load is v(t)=215 cos(315t). The load is consuming 1150+j1030 power. Find the value of a capacitor such that if it was connected in parallel across the load and voltage source, the resulting power factor at the voltage source would be 0.93 lagging.
4. Three ideal single-phase transformers are connected as shown below. The turns ratio of each single-phase transformer is 2400/480. Assume a perfectly balanced three- phase system (with ABC sequence) and that the delta side is the high-voltage side. (a) If IA is 8 amperes at 20 degrees, determine the phasor current Ix. (b) If the three-phase load is 100 kW at 0.87 lagging power factor and 465 V, determine how much current is flowing in the primary winding of T3....
Text problem 2.4: A single-phase source supplies a load of R 25 2 and a reactance of Xc - are commected in paralel. The " 15 2, both of which are connected in parallel. The voltage across the combination is v(t) - v2(120) cos(wt -45°) v. a) Find V, the total current I, instantaneous current i(t), and the complex power. b) Repeat a) if instead of the capacitive reactance we had inductive reactance of XL = 20 Ω (Partial answer:...
A single circuit three phase transmission line which is
110miles long and made of Ostrich
Problem 2: single circuit, three phase transmission line which is 110 miles long and made of Ostrich conduction ivers 70 MVA of power to a load with power factor of 0.85 lagging. If the V Lu is 169 KV and the spacing between each phase of conductors is 12.2 ft, determine: a) The line constants (ABCD) The sending end voltage, current, real and reactive power...
Problem 04: A voltage source is expressed by the following Fourier series: v(t) = -2 + 5* sin(t) – 5*cos(t) – 3* sin(2*t) + 4*cos(2*t) – sin(3*t) – 6*cos(3*t) + 4*sin(4*t) + 6*cos(4*t). Now, (a) Express v(t) in amplitude-phase form. (b) Draw the amplitude and phase spectra of v(t) (c) Determine the effective value (rms value) of the voltage v(t) (d) If the voltage is applied across an impedance block as shown in the circuit below, determine the average power...
b. Consider the single-phase fully controlled of thyristor bridge rectifier supplies a load consists of R-L load and Vee in series as shown in Figure Q2 (b). The parameters for this circuit are as follows: supply voltage is 120 Vrms at 60 Hz, DC voltage, Voe equal to 10 v. i. Sketch the waveforms for output voltage, thyristor current, diode current and output current (CO2: PO2 - 5 marks) Calculate the output voltage, Va at a = Tt/2. (CO2: PO2...
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