A 3-phase Y-connected motor is connected to a three phase Y-connected source with 440V line voltage....
- A 3-phase Y-connected motor is connected to a three phase Y-connected source with 440V line voltage. It draws a line current of 5A from the source. If the power factor of the motor is 0.8, calculate
- Active power and Reactive power absorbed by the load
- Total Apparent power
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A 3-phase Y-connected motor is connected to a three phase
Y-connected source with 440V line voltage....
The following three-phase, balanced loads are connected across a three-phase, Y-connected 60 Hz source with a...
The following three-phase, balanced loads are connected across a three-phase, Y-connected 60 Hz source with a line-to-line voltage of 480 V. The loads are described below: • Load 1: ∆-connected, total three-phase apparent power is 30 kVA at 0.95 power factor lagging. • Load 2: ∆-connected, total three-phase active power is 20 kW at 0.7 power factor lagging. • Load 3: Y-connected, phase current is 30 A, and power factor is 0.9 pf leading. (a) Calculate the total complex power...
9. A three phase balanced Y connected source is supplying three, three phase loads that are...
9. A three phase balanced Y connected source is supplying three, three phase loads that are connected in parallel. First load is a y connected and has an impedance of 30+j40 ohms. The second load is absorbing a total of 150kVA at 0.5 power factor lagging. The third load is absorbing 150kVA at 0.5 power factor leading. The line to line source rms voltage is 2500V. i Find the load current in each load i) Find the total real and...
Problem 3ph [10 pts]: Y-connected source: A Y-connected balanced three-phase source is feeding a ...
Please show how this transformers problem is done. Thanks!
Problem 3ph [10 pts]: Y-connected source: A Y-connected balanced three-phase source is feeding a balanced three-phase load (it doesn't matter whether the load is Y or Delta connected). The voltage and current of the source are: van (t) - 340 sin (377t + 0.5236) ia(t) 100sin (377t 0.87266) Calculate the following: (a) The rms phase voltage (Van, magnitude and phase). (b) The rms line-to-line voltage (Vab, magnitude and phase) (c) The...
I just need answers to f,g,and h connected motor is connected to Vi-L 120 3T/6 V-rms, 50 Hz three e resistance and inductance of each phase is 8-Ω and 0.04 H, respectively. The PS. A three-phase p...
I just need answers to f,g,and h
connected motor is connected to Vi-L 120 3T/6 V-rms, 50 Hz three e resistance and inductance of each phase is 8-Ω and 0.04 H, respectively. The PS. A three-phase phase source. The wire between a source and the motor has 0.1-Ω of resistance and 1 mH inductance. nd the phase voltage. (2 pts.) a single-phase diagram of the system with its values. (5 pts.) c) Find the line current (magnitude and phase) for...
• Curse exLDUUR. 3. (15 points) A three phase 440V line-to-line source drives a 15 horsepower...
• Curse exLDUUR. 3. (15 points) A three phase 440V line-to-line source drives a 15 horsepower (1 hp = 746 W) motor at 90% efficiency and 80% power factor lagging. The 15 horsepower figure is the output mechanical power a. Find the current drawn by the motor b. Find the real and reactive power drawn by the motor.
5. The line to neutral voltages of a Y-connected three phase source are given by, The...
5. The line to neutral voltages of a Y-connected three phase source are given by, The above three phase source is directly connected to a delta connected balanced three phase resistive load. The resistance in each phase is 10 ohms. Calculate the current phasor 0. Answer- 4. Following three loads are connected in parallel across a single-phase source voltage source: Load 1 absorbs 15 kW and 6.667 kvar; Load 2 absorbs 3 kVA at 0.96PF leading; Load 3 absorbs 15...
A 3-phase 4 wire symmetrical (balanced) Y-connected source with line voltage 340V (take the phase of...
A 3-phase 4 wire symmetrical (balanced) Y-connected source with
line voltage 340V (take the phase of VanVan to be 0 degrees) feeds
an unbalanced three phase load formed by the impedances
ZY1=14+j(14)Ω, ZY2=7+j(11)Ω and ZY3=20+j(−14)Ω connected in a Y
(a.k.a. “star”, or a “tee”) configuration. Find the line currents,
neutral current (current in the fourth “return” wire), and active
power in each phase.
(20 points) A 3-phase 4 wire symmetrical (balanced) Yconnected source with line voltage 340V (take the phase...
Question: A three-phase line has an impedance of 1 + j2 Ω per phase. The line...
Question: A three-phase line has an impedance of 1 + j2 Ω per phase. The line feeds two balanced three-phase loads that are connected in parallel. The first load is Y-connected and has an impedance of 20+j40 Ω per phase. The second load is ∆-connected and has an impedance of 30-j60 Ω per phase. The line-to-line voltage at the load end of the line is 415V. Taking the phase voltage Va as reference, determine: a) The total current per phase...
The impedance of a three-phase line is 0.3 + j 2.4 per phase. The line feeds...
The impedance of a three-phase line is 0.3 + j 2.4 per phase. The line feeds two balanced three- phase loads connected in parallel. The first load takes 600 kVA at 0.7 p.f. lagging. The second takes 150 kW at unity power factor. The line to line voltage at the load end of the line is 3810.5 V. Find a) The magnitude of the line voltage at the source end of the line. b) The total active and reactive power...
A 2200Vrms (line-to-line), 30Hz, Y-connected, 3-phase synchronous motor has a synchronous reactance of 10Ω per phase....
A 2200Vrms (line-to-line), 30Hz, Y-connected, 3-phase synchronous motor has a synchronous reactance of 10Ω per phase. The motor draws 163kW at a power angle of 15°. Determine: a) The excitation voltage per phase. b) The supply current and the supply power factor. c) Draw the phasor diagram for the above condition. d) Suppose the mechanical load is now disconnected, with all the losses are negligible. Determine the new supply current and the supply power factor.
9. A three phase balanced Y connected source is supplying three, three phase loads that are connected in parallel. First load is a y connected and has an impedance of 30+j40 ohms. The second load is absorbing a total of 150kVA at 0.5 power factor lagging. The third load is absorbing 150kVA at 0.5 power factor leading. The line to line source rms voltage is 2500V. i Find the load current in each load i) Find the total real and...
Please show how this transformers problem is done. Thanks!
Problem 3ph [10 pts]: Y-connected source: A Y-connected balanced three-phase source is feeding a balanced three-phase load (it doesn't matter whether the load is Y or Delta connected). The voltage and current of the source are: van (t) - 340 sin (377t + 0.5236) ia(t) 100sin (377t 0.87266) Calculate the following: (a) The rms phase voltage (Van, magnitude and phase). (b) The rms line-to-line voltage (Vab, magnitude and phase) (c) The...
I just need answers to f,g,and h
connected motor is connected to Vi-L 120 3T/6 V-rms, 50 Hz three e resistance and inductance of each phase is 8-Ω and 0.04 H, respectively. The PS. A three-phase phase source. The wire between a source and the motor has 0.1-Ω of resistance and 1 mH inductance. nd the phase voltage. (2 pts.) a single-phase diagram of the system with its values. (5 pts.) c) Find the line current (magnitude and phase) for...
• Curse exLDUUR. 3. (15 points) A three phase 440V line-to-line source drives a 15 horsepower (1 hp = 746 W) motor at 90% efficiency and 80% power factor lagging. The 15 horsepower figure is the output mechanical power a. Find the current drawn by the motor b. Find the real and reactive power drawn by the motor.
5. The line to neutral voltages of a Y-connected three phase source are given by, The above three phase source is directly connected to a delta connected balanced three phase resistive load. The resistance in each phase is 10 ohms. Calculate the current phasor 0. Answer- 4. Following three loads are connected in parallel across a single-phase source voltage source: Load 1 absorbs 15 kW and 6.667 kvar; Load 2 absorbs 3 kVA at 0.96PF leading; Load 3 absorbs 15...
A 3-phase 4 wire symmetrical (balanced) Y-connected source with
line voltage 340V (take the phase of VanVan to be 0 degrees) feeds
an unbalanced three phase load formed by the impedances
ZY1=14+j(14)Ω, ZY2=7+j(11)Ω and ZY3=20+j(−14)Ω connected in a Y
(a.k.a. “star”, or a “tee”) configuration. Find the line currents,
neutral current (current in the fourth “return” wire), and active
power in each phase.
(20 points) A 3-phase 4 wire symmetrical (balanced) Yconnected source with line voltage 340V (take the phase...
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