Two loads, A and B, are connected in parallel across a 1-kV-rms 60-Hz line, as shown in (Figure 1). Load Aconsumes 10 kW with a 60 percent lagging power factor. Load B has an apparent power of 20 kVA with an 80 percent lagging power factor.
a) Find the power delivered by the source.
b) Find the reactive power delivered by the source.
c) Find the apparent power delivered by the source.
d) What is the power factor seen by the source?
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Two loads, A and B, are connected in parallel
across a 1-kV-rms 60-Hz line, as shown...
P 5.75 Part A Loads A and B are connected in parallel across a 1.kV ms...
P 5.75 Part A Loads A and B are connected in parallel across a 1.kV ms 60-Hz ine, as shown in the figure below (Figure 1). Load A consumes 20 k W with a 90-percent- power factor. Load B has an apparent power of 30 kVA with an 80-percent-lagging power factor Find the power delivered by the source Express your answer to three significant figures and include the appropriate units P,-1 Value Units Figure 1of 1 Submit Request Answer line...
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...
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.
Example 9 Three loads are connected in parallel across 1400 V, 60 Hz supply: Load 1:...
Example 9 Three loads are connected in parallel across 1400 V, 60 Hz supply: Load 1: 125 KVA, 0.28 PF lag Load 2: 10 kW, 40 kVAR capacitive load Load 3: 15 kW Find the total kW, kVAR, KVA, and the supply power factor . The KVAR and the capacitance in mF of the capacitor needed to improve the PF to 0.8 lagging
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...
1. (10 points total) A source supplies power to the following three loads connected in parallel:...
1. (10 points total) A source supplies power to the following three loads connected in parallel: (1) a lighting load drawing 10 kW, (2) an induction motor drawing 10 kVA at 0.90 power factor lagging, and (3) a synchronous motor operating at 10 hp, 85% efficiency and 0.95 power factor leading (1 hp 0.746 kW). (a) Determine the real, reactive, and apparent power delivered by the source. (8 points)
I. Two electric loads are connected in parallel to a source of value u(t) = 300...
I. Two electric loads are connected in parallel to a source of value u(t) = 300 cos(380t) V. The first load absorbs 3 kW at a power factor of 0.5 lagging. The second load absorbs 4kW at a power factor of 0.8 leading. (a) Find the current I through the first load. (b) Find the total current I c) Find the total apparent power (d) Find the total average power e) Find the overall power factor of the two loads...
10. Two loads connected in parallel draw a total of 2.4 kW at 0.8 pflagging from...
10. Two loads connected in parallel draw a total of 2.4 kW at 0.8 pflagging from a 120-V rms, 60- Hz line. One load absorbs 1.5 kW at a 0.707 pf lagging. Determine: (a) the pf of the second load, INV 11. Calculate the line currents for the system shown in figure. Calculate also the total power and reactive power consumed by the load. w 12. For the balanced three-phase circuit in Fig.. Calculate the line currents, the phase voltage...
1. A 480 V (rms) source supplies power to two loads connected in parallel. The first...
1. A 480 V (rms) source supplies power to two loads connected in parallel. The first load draws 80 kW and 30 kVAR. The second load draws 100 kVA at a power factor of 0.6 lagging. a) Draw the power triangle for the first load and determine its power factor; b) Determine the current (both magnitude and phase, using the source voltage as the phase reference) drawn by the first load; c) Draw the power triangle for the second load...
A 240V three phase power system supplies two loads in parallel: Load 1: measured line current...
A 240V three phase power system supplies two loads in parallel: Load 1: measured line current 30A, power factor 0.85 lagging, and Load 2: measured power 10kW, reactive power -7.5kVar A. Determine the power factor of load 2. B. Determine the total real power (in kW), reactive power (in kVAR), apparent power (in kVA), power factor and line current (in A) of the two loads.
P 5.75 Part A Loads A and B are connected in parallel across a 1.kV ms 60-Hz ine, as shown in the figure below (Figure 1). Load A consumes 20 k W with a 90-percent- power factor. Load B has an apparent power of 30 kVA with an 80-percent-lagging power factor Find the power delivered by the source Express your answer to three significant figures and include the appropriate units P,-1 Value Units Figure 1of 1 Submit Request Answer line...
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.
Example 9 Three loads are connected in parallel across 1400 V, 60 Hz supply: Load 1: 125 KVA, 0.28 PF lag Load 2: 10 kW, 40 kVAR capacitive load Load 3: 15 kW Find the total kW, kVAR, KVA, and the supply power factor . The KVAR and the capacitance in mF of the capacitor needed to improve the PF to 0.8 lagging
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...
1. (10 points total) A source supplies power to the following three loads connected in parallel: (1) a lighting load drawing 10 kW, (2) an induction motor drawing 10 kVA at 0.90 power factor lagging, and (3) a synchronous motor operating at 10 hp, 85% efficiency and 0.95 power factor leading (1 hp 0.746 kW). (a) Determine the real, reactive, and apparent power delivered by the source. (8 points)
I. Two electric loads are connected in parallel to a source of value u(t) = 300 cos(380t) V. The first load absorbs 3 kW at a power factor of 0.5 lagging. The second load absorbs 4kW at a power factor of 0.8 leading. (a) Find the current I through the first load. (b) Find the total current I c) Find the total apparent power (d) Find the total average power e) Find the overall power factor of the two loads...
10. Two loads connected in parallel draw a total of 2.4 kW at 0.8 pflagging from a 120-V rms, 60- Hz line. One load absorbs 1.5 kW at a 0.707 pf lagging. Determine: (a) the pf of the second load, INV 11. Calculate the line currents for the system shown in figure. Calculate also the total power and reactive power consumed by the load. w 12. For the balanced three-phase circuit in Fig.. Calculate the line currents, the phase voltage...
1. A 480 V (rms) source supplies power to two loads connected in parallel. The first load draws 80 kW and 30 kVAR. The second load draws 100 kVA at a power factor of 0.6 lagging. a) Draw the power triangle for the first load and determine its power factor; b) Determine the current (both magnitude and phase, using the source voltage as the phase reference) drawn by the first load; c) Draw the power triangle for the second load...
A 240V three phase power system supplies two loads in parallel: Load 1: measured line current 30A, power factor 0.85 lagging, and Load 2: measured power 10kW, reactive power -7.5kVar A. Determine the power factor of load 2. B. Determine the total real power (in kW), reactive power (in kVAR), apparent power (in kVA), power factor and line current (in A) of the two loads.
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