generate the instantaneous equation for the power constant by the load with the following instantaneous electrical...
generate the instantaneous equation for the power constant by the load with the following instantaneous electrical characteristic:
v(t) = 70.71 cos(wt) A.
v(t) = 169.7 cos(wt) V.
calculate the average power consumed by the same load using the instantaneous power equation previously obtained, assume 60hz for the frequency.
what type of load is represented by these results? )i.e purely inductive, purely capacitive, purely resistive
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generate the instantaneous equation for the power constant by
the load with the following instantaneous electrical...
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:...
Solve by hand and simulate in any electrical circuit simulator preferrably LTSpice Solve by hand only. Problem #4: Consider the circuit shown below. 6Ω /8 Ω 302 2700 V (rms) 40 2 Source-Line Load...
Solve by hand and simulate in any electrical circuit
simulator preferrably LTSpice
Solve by hand only.
Problem #4: Consider the circuit shown below. 6Ω /8 Ω 302 2700 V (rms) 40 2 Source-Line Load (a) Find the real power dissipated in the line. (b) Find the capacitive reactance that when connected in parallel with the load will pl make the load look purely resistive. (c) What is the equivalent impedance of the load in (b)? (d) Find the real power...
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...
Need help solving the circuit with 120V 60Hz power network 21 Set up the circuit shown...
Need help solving the circuit with 120V 60Hz power network
21 Set up the circuit shown in Figure 3. + L1 11 + Ri E1 Xci R3. L2 X3 E2 Xc2 L3 12 XC1,XC2, XC3 R1,R2,R3 (O Local ac power network Frequency (Hz) Voltage (V) 240 171 60 120 880 629 50 220 960 686 50 240 Figure 3. Balanced, three-wire, delta-connected, three-phase circuit set up for power measurements using the two-wattmeter method. 22 in order to obtain the resistance...
ECET 212 ELECTRICAL POWER &MOTORS QUESTIONS 1. Transformer regulation can be determined with the formula a....
ECET 212 ELECTRICAL POWER &MOTORS QUESTIONS 1. Transformer regulation can be determined with the formula a. (EPRI-ESEc) / EPRI x100% b. (ENL- EFL)/ EFL x100% c. (IPRI-ESEC) / IPRI×100% d. (INL-IFL) / INL X 100% 2. What is the transformer regulation if the no-load and full-load voltages are 100 V and 95 v respectively? a. 105% b. 10.5% C. 95% d. 5.3% 3. The secondary voltage can rise above its rated value when the load is a. resistive b. capacitive...
Instructions: Start each new problem on a new sheet of paper. Staple this sheet and both...
Instructions: Start each new problem on a new sheet of paper. Staple this sheet and both y our work and . formula sheet. Show procedure for full credit. Neatness and UNITs counts for points. Use only 2 decimals for all calculations. If calculated values are zero with two decimals, express the number in 103, 10*, or 10 with two decimals as well. l. (25 %) The system in Figure 1 has two costumers, one commercial and one residential. The commercial...
below is used to modulate a carrier to generate the AM signal yt) (Am()) cos(1000t) The periodic signal m() shown a) The power efficiency of the system is measured to be 1 () The type of AM modula...
below is used to modulate a carrier to generate the AM signal yt) (Am()) cos(1000t) The periodic signal m() shown a) The power efficiency of the system is measured to be 1 () The type of AM modulation, i.e. SSB, DSBSC, (i) The constant A. (ili) The modulation index 1/13. Determine DSB with carrier enit -3 b) An angle modulated signal is given by d(t-2 cos (2n1061+ sin 2 1000). Find i) The carrier frequency. ii) The baseband signal bandwidth....
2. Figure 2 shows a 6-pulse thyristor rectifier feeding a DC static load an operating at steady-state. The ac input power supply is a symmetric set of three-phase voltages forming a direct seque...
2. Figure 2 shows a 6-pulse thyristor rectifier feeding a DC static load an operating at steady-state. The ac input power supply is a symmetric set of three-phase voltages forming a direct sequence, having rms line-to-line voltage of Vuns equal to 415 V and angular frequency ω equal to 100π rad/s. The load is sufficiently inductive to smooth out the load current i(t), i.e. i 1, where I is a constant. a. Derive the mathematical expression of the average DC...
1. In the figure below, what is the correct equation to find the value of capacitor...
1. In the figure below, what is the correct equation to find the value of capacitor C to be connected in parallel with the source Vg to improve the power factor angle of the circuits from oto 02. (2 Marks) the - 230 v.co 10 a.) c= P(tano, - tano,) c) c= P(tand, -tano,) wV av b.) c="(tano, -tane) d) c= P(tand,+ tano.) 2. The type of power which is actually consumed or utilized in an AC circuit is called:...
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 +...
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:...
Solve by hand and simulate in any electrical circuit
simulator preferrably LTSpice
Solve by hand only.
Problem #4: Consider the circuit shown below. 6Ω /8 Ω 302 2700 V (rms) 40 2 Source-Line Load (a) Find the real power dissipated in the line. (b) Find the capacitive reactance that when connected in parallel with the load will pl make the load look purely resistive. (c) What is the equivalent impedance of the load in (b)? (d) Find the real power...
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...
Need help solving the circuit with 120V 60Hz power network
21 Set up the circuit shown in Figure 3. + L1 11 + Ri E1 Xci R3. L2 X3 E2 Xc2 L3 12 XC1,XC2, XC3 R1,R2,R3 (O Local ac power network Frequency (Hz) Voltage (V) 240 171 60 120 880 629 50 220 960 686 50 240 Figure 3. Balanced, three-wire, delta-connected, three-phase circuit set up for power measurements using the two-wattmeter method. 22 in order to obtain the resistance...
ECET 212 ELECTRICAL POWER &MOTORS QUESTIONS 1. Transformer regulation can be determined with the formula a. (EPRI-ESEc) / EPRI x100% b. (ENL- EFL)/ EFL x100% c. (IPRI-ESEC) / IPRI×100% d. (INL-IFL) / INL X 100% 2. What is the transformer regulation if the no-load and full-load voltages are 100 V and 95 v respectively? a. 105% b. 10.5% C. 95% d. 5.3% 3. The secondary voltage can rise above its rated value when the load is a. resistive b. capacitive...
Instructions: Start each new problem on a new sheet of paper. Staple this sheet and both y our work and . formula sheet. Show procedure for full credit. Neatness and UNITs counts for points. Use only 2 decimals for all calculations. If calculated values are zero with two decimals, express the number in 103, 10*, or 10 with two decimals as well. l. (25 %) The system in Figure 1 has two costumers, one commercial and one residential. The commercial...
below is used to modulate a carrier to generate the AM signal yt) (Am()) cos(1000t) The periodic signal m() shown a) The power efficiency of the system is measured to be 1 () The type of AM modulation, i.e. SSB, DSBSC, (i) The constant A. (ili) The modulation index 1/13. Determine DSB with carrier enit -3 b) An angle modulated signal is given by d(t-2 cos (2n1061+ sin 2 1000). Find i) The carrier frequency. ii) The baseband signal bandwidth....
2. Figure 2 shows a 6-pulse thyristor rectifier feeding a DC static load an operating at steady-state. The ac input power supply is a symmetric set of three-phase voltages forming a direct sequence, having rms line-to-line voltage of Vuns equal to 415 V and angular frequency ω equal to 100π rad/s. The load is sufficiently inductive to smooth out the load current i(t), i.e. i 1, where I is a constant. a. Derive the mathematical expression of the average DC...
1. In the figure below, what is the correct equation to find the value of capacitor C to be connected in parallel with the source Vg to improve the power factor angle of the circuits from oto 02. (2 Marks) the - 230 v.co 10 a.) c= P(tano, - tano,) c) c= P(tand, -tano,) wV av b.) c="(tano, -tane) d) c= P(tand,+ tano.) 2. The type of power which is actually consumed or utilized in an AC circuit is called:...
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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