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Item 6 A three-phase supples 17 kVA with a power factor of 0.75 lagging to a...
Problem 11.24 A three-phase positive sequence Y-connected source supplies 15 kVA with a power factor of...
Problem 11.24 A three-phase positive sequence Y-connected source supplies 15 kVA with a power factor of 0.75 lagging to a parallel combination of a Y-connected load and a A-connected load. The Y-connected load uses 9 kVA at a power factor of 0.6 lagging and has an a-phase current of 122-20° A. Part A Find the complex power per phase of the A-connected load. Enter your answer using polar notation. Express argument in degrees. 10 AP u vec mo ? SA...
A three-phase positive sequence Y-connected source supplies 14 kVA with a power factor of 0.75 lagging...
A three-phase positive sequence Y-connected source supplies 14 kVA with a power factor of 0.75 lagging to a parallel combination of a Y-connected load and a A-connected load. The Y-connected load uses 9 kVA at a power factor of 0.6 lagging and has an a-phase current of 102-30° A. a) Find the complex power per phase of the A-connected load. b) Find the magnitude of the line voltage.
A 3-φ Y connected source supplies 12 kVA with a power factor of 0.8 lagging to a parallel
A 3-φ Y connected source supplies 12 kVA with a power factor of 0.8 lagging to a parallel combination of a Y load and a Δ load. If the Y load consumes 5.6 kVA at a power factor of 0.75 lagging and has phase-a current of 8 Arms and the angle of the current is -30°, determine the phase impedance of the Δ load. Real part of the impedance of the Δ load in Ohms: Imaginary part of the impedance of the...
A three-phase load of 15 kVA with a PF of 0.8 lagging is connected in parallel...
A three-phase load of 15 kVA with a PF of 0.8 lagging is connected in parallel with a three-phase load of 36 kW at 0.6 PF leading. The line-line voltage is 2000V. a) Find the total complex power and power factor. Is it inductive or capacitive? b) How much kVAR is needed to make the PF unity? c) What is the magnitude of the current going into the total load?
2. [15 pts total] A single-phase load draws 1 MW at 0.75 power factor lagging. a....
2. [15 pts total] A single-phase load draws 1 MW at 0.75 power factor lagging. a. [10 pts] Determine the power required from an added parallel capacitor to bring the power factor of the parallel combination up to 0.95 lagging. b. [05 pts) Determine the power required from an added parallel capacitor to bring the power factor of the parallel combination up to 0.95 leading.
QUESTION 6 (MULTI-PHASE SYSTEMS) A 400 v, 50 Hz, three-phase distribution system supplies a 20 kVA, three-phase induction motor load at a power factor of 0 8 lagging, and a star-connected set of...
QUESTION 6 (MULTI-PHASE SYSTEMS) A 400 v, 50 Hz, three-phase distribution system supplies a 20 kVA, three-phase induction motor load at a power factor of 0 8 lagging, and a star-connected set of impedances, each having a resistance of 10 Ω and an inductive reactance of 8 Ω Calculate the capacitance of delta-connected capacitors required to improve the overalil power factor to 0 95 lagging [14] TOTAL 1001
QUESTION 6 (MULTI-PHASE SYSTEMS) A 400 v, 50 Hz, three-phase distribution system...
Problem 3 Two parallel 3-phase loads are supplied from a 3-phase source with line-line voltage of...
Problem 3 Two parallel 3-phase loads are supplied from a 3-phase source with line-line voltage of 415.6922 V rms. The data of their power consumption are as follows. Load 1: 15 kVA at power factor of 0.75 lagging Load 2: 9 kW at power factor 0.82 lagging 1) 2) 3) 4) 5) Determine the complex power consumed by Load 1 Find the complex power consumed by Load 2 Calculate the total complex power consumed by the two loads. Determine the...
3. A 345-KV, three-phase transmission line delivers 500MVA, 0.866 power factor lagging, to a three phase...
3. A 345-KV, three-phase transmission line delivers 500MVA, 0.866 power factor lagging, to a three phase wve-connected load connected to its receiving-end terminals, the voltage at the receiving end is 345kV. a) Find the complex load impedance per phase. b) Find the real and reactive power per phase. 15 pts.
3. (40 points) Three-phase loads are connected in parallel across a 24 KV (line-line three-phase power...
3. (40 points) Three-phase loads are connected in parallel across a 24 KV (line-line three-phase power supply. Load 1: 120 KVA at 0.8 power factor leading; Load 2: 180 KW at 0.6 power factor lagging, Load 3: 40 KW at unity power factor Find the total complex power of three loads; (ii) Draw the power triangle of the combined load (ii) Find the overall power factor (iv) Find the line current (magnitude only) in the power supply line.
A building has an overall power factor of 0.75 lagging. The required power factor is 0.85....
A building has an overall power factor of 0.75 lagging. The required power factor is 0.85. The voltage provided to the building is 480 V at 60 Hz, and the building consumes 29,000 VA of power Find the value of the capacitor (in VARs and Farads) you must connect to the load to increase the required power factor of 0.85.
Problem 11.24 A three-phase positive sequence Y-connected source supplies 15 kVA with a power factor of 0.75 lagging to a parallel combination of a Y-connected load and a A-connected load. The Y-connected load uses 9 kVA at a power factor of 0.6 lagging and has an a-phase current of 122-20° A. Part A Find the complex power per phase of the A-connected load. Enter your answer using polar notation. Express argument in degrees. 10 AP u vec mo ? SA...
A three-phase positive sequence Y-connected source supplies 14 kVA with a power factor of 0.75 lagging to a parallel combination of a Y-connected load and a A-connected load. The Y-connected load uses 9 kVA at a power factor of 0.6 lagging and has an a-phase current of 102-30° A. a) Find the complex power per phase of the A-connected load. b) Find the magnitude of the line voltage.
2. [15 pts total] A single-phase load draws 1 MW at 0.75 power factor lagging. a. [10 pts] Determine the power required from an added parallel capacitor to bring the power factor of the parallel combination up to 0.95 lagging. b. [05 pts) Determine the power required from an added parallel capacitor to bring the power factor of the parallel combination up to 0.95 leading.
QUESTION 6 (MULTI-PHASE SYSTEMS) A 400 v, 50 Hz, three-phase distribution system supplies a 20 kVA, three-phase induction motor load at a power factor of 0 8 lagging, and a star-connected set of impedances, each having a resistance of 10 Ω and an inductive reactance of 8 Ω Calculate the capacitance of delta-connected capacitors required to improve the overalil power factor to 0 95 lagging [14] TOTAL 1001
QUESTION 6 (MULTI-PHASE SYSTEMS) A 400 v, 50 Hz, three-phase distribution system...
Problem 3 Two parallel 3-phase loads are supplied from a 3-phase source with line-line voltage of 415.6922 V rms. The data of their power consumption are as follows. Load 1: 15 kVA at power factor of 0.75 lagging Load 2: 9 kW at power factor 0.82 lagging 1) 2) 3) 4) 5) Determine the complex power consumed by Load 1 Find the complex power consumed by Load 2 Calculate the total complex power consumed by the two loads. Determine the...
3. A 345-KV, three-phase transmission line delivers 500MVA, 0.866 power factor lagging, to a three phase wve-connected load connected to its receiving-end terminals, the voltage at the receiving end is 345kV. a) Find the complex load impedance per phase. b) Find the real and reactive power per phase. 15 pts.
3. (40 points) Three-phase loads are connected in parallel across a 24 KV (line-line three-phase power supply. Load 1: 120 KVA at 0.8 power factor leading; Load 2: 180 KW at 0.6 power factor lagging, Load 3: 40 KW at unity power factor Find the total complex power of three loads; (ii) Draw the power triangle of the combined load (ii) Find the overall power factor (iv) Find the line current (magnitude only) in the power supply line.
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