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For parallel loads given, with load 2 is inductive (L), while load 3 is capacitive (C)....
Task 1 (10 Marks) A single phase inductive-resistive-capacitive (LRC) series load is energised from a 240V,...
Task 1 (10 Marks) A single phase inductive-resistive-capacitive (LRC) series load is energised from a 240V, 50Hz supply as shown in Fig. Q1. LRC n Fig. Q1 The supply current is measured as supply and the power factor of the LRC load is found to be cose leading. The capacitance value C is known, however the resistance R and inductance L are unknown. The values for supplycosa and Care to be obtained from the excel spread sheet as explained in...
-An electric load consists of a 4Ω resistance, 6Ω inductive reactance and 9Ω capacitive reactance connected...
-An electric load consists of a 4Ω resistance, 6Ω inductive reactance and 9Ω capacitive reactance connected in series. The total impedance of the load is connected across a voltage source of 120 V: a) Compute the power factor of the load. Pf- b) Compute the source current c) Compute the real power of the circuit. d) Compute the reactive power of the circuit. Isource
Which of the following statements is incorrect? (a) reactive power for capacitive loads is negative (b)...
Which of the following statements is incorrect? (a) reactive power for capacitive loads is negative (b) inductive loads have lagging power factor (c) apparent power is the magnitude of complex power (d) complex power for resistive loads is zero.
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
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.
Please show all work and concepts 5.2 (15 pts) In the following circuit, voltage source V...
Please show all work and concepts
5.2 (15 pts) In the following circuit, voltage source V 10020° V, 60 Hz supplies power to three load circuits with impedances Z1, Z2, and Z3. The following information was deduced from measurements performed on the three load circuits Load Z1: 45 W at pf 0.95 lagging Load Z2: 70 VA at pf 0.75 leading Load Z3: 100 VA at pf = 0.6 lagging (a) Are Z1, Z2, and Z3 inductive or capacitive? (b)...
1, Two balanced three-phase loads are in parallel. Load 1 draws 10 kW at 0.8 PF...
1, Two balanced three-phase loads are in parallel. Load 1 draws 10 kW at 0.8 PF lagging Load 2 draws 20 kVA at 0.6 PF leading a. b. The loads are supplied by a balanced three-phase 480 Vu source. (a) Draw the power triangle for the combined load. (b) Determine PF of the combined load. (c) Determine the magnitude of the line current from the source. (d) Y-connected inductors are now installed in parallel with the combined load. What value...
Part B. Improved Power System Connected to a Parallel Load Capacitor The power factor pf (0.87914...
Part B. Improved Power System Connected to a Parallel Load Capacitor The power factor pf (0.879140208874799) for the system in Part A needs to be improved up to 0.95. It is suggested to connect a parallel load capacitor CD to the riginal system as seen below, while keeping the original system unchanged. RD V1 CD LD G) Find the power factor angle 8B in degrees for the improved power system with the capacitor: Co) Submit Answer Tries 0/3 (k) Find...
The three loads in the circuit in the figure can be described as follows: Load 1...
The three loads in the circuit in the figure can be described as
follows: Load 1 is a 230 Ω resistor in series with an inductive
reactance of 90 Ω ; load 2 is a capacitive reactance of 140 Ω in
series with a 140 Ω resistor; and load 3 is a 50 Ω resistor in
series with a capacitive reactance of 40 Ω . The frequency of the
voltage source is 60 Hz.
Part G: Give the power factor...
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?
Task 1 (10 Marks) A single phase inductive-resistive-capacitive (LRC) series load is energised from a 240V, 50Hz supply as shown in Fig. Q1. LRC n Fig. Q1 The supply current is measured as supply and the power factor of the LRC load is found to be cose leading. The capacitance value C is known, however the resistance R and inductance L are unknown. The values for supplycosa and Care to be obtained from the excel spread sheet as explained in...
-An electric load consists of a 4Ω resistance, 6Ω inductive reactance and 9Ω capacitive reactance connected in series. The total impedance of the load is connected across a voltage source of 120 V: a) Compute the power factor of the load. Pf- b) Compute the source current c) Compute the real power of the circuit. d) Compute the reactive power of the circuit. Isource
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
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.
Please show all work and concepts
5.2 (15 pts) In the following circuit, voltage source V 10020° V, 60 Hz supplies power to three load circuits with impedances Z1, Z2, and Z3. The following information was deduced from measurements performed on the three load circuits Load Z1: 45 W at pf 0.95 lagging Load Z2: 70 VA at pf 0.75 leading Load Z3: 100 VA at pf = 0.6 lagging (a) Are Z1, Z2, and Z3 inductive or capacitive? (b)...
1, Two balanced three-phase loads are in parallel. Load 1 draws 10 kW at 0.8 PF lagging Load 2 draws 20 kVA at 0.6 PF leading a. b. The loads are supplied by a balanced three-phase 480 Vu source. (a) Draw the power triangle for the combined load. (b) Determine PF of the combined load. (c) Determine the magnitude of the line current from the source. (d) Y-connected inductors are now installed in parallel with the combined load. What value...
Part B. Improved Power System Connected to a Parallel Load Capacitor The power factor pf (0.879140208874799) for the system in Part A needs to be improved up to 0.95. It is suggested to connect a parallel load capacitor CD to the riginal system as seen below, while keeping the original system unchanged. RD V1 CD LD G) Find the power factor angle 8B in degrees for the improved power system with the capacitor: Co) Submit Answer Tries 0/3 (k) Find...
The three loads in the circuit in the figure can be described as
follows: Load 1 is a 230 Ω resistor in series with an inductive
reactance of 90 Ω ; load 2 is a capacitive reactance of 140 Ω in
series with a 140 Ω resistor; and load 3 is a 50 Ω resistor in
series with a capacitive reactance of 40 Ω . The frequency of the
voltage source is 60 Hz.
Part G: Give the power factor...
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