a) define complex power in terms of the supply current i and v b) draw separately...
a) define complex power in terms of the supply current i and v
b) draw separately the current and power phasor relations for the case of a load consisting of a series connection of a resistor and an inductor across the voltage supply
c) A single phase load connected to a 230V, 50Hz source draws is rated 1.84kVA at a phase angle of 40,lagging, determine the current drawn from the supply and load power factor, calculate the active and reactive power drawn from the supply, calculate the overall active power when a capacitive load is parallel with the first load across the supply terminals
Homework Answers
Thank
You...Hope It's UsefulAdd Answer to:
a) define complex power in terms of the supply current i and
v
b) draw separately...
QUESTION 3 31A cable is required to supply a welding set taking a current of 225 A at 110 V alter...
QUESTION 3 31A cable is required to supply a welding set taking a current of 225 A at 110 V alternating current, the average power factor being 0 5 lagging An available cable has a rating of 175 A and it is decided to use this cable by installing a capacitor across the terminals of the welding set Fınd 311 the required capacitor current and reactive power to limit the cable current to 175 A the overall power factor with...
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...
please take note the question is extend a) A single phase 240V 50Hz supply is supplying...
please take note the question is extend
a) A single phase 240V 50Hz supply is supplying a power to a load which consist of 500 resistance and 0.3H inductance through a cable which has an effective impedance of 1+j2 0. The equivalent circuit of the single-phase system is shown in Figure Q1(a). Zcable=1+j2 I Load 5092 240V 50Hz Supply V Load 0.3H Figure Q1(a): A single phase system. i. ii. Determine the load current, low and the load voltage Vood...
b) the r.m.s.value of the supply current c) the r.m.s.value of the current, and d) the...
b) the r.m.s.value of the supply current c) the r.m.s.value of the current, and d) the resultant power factor of the circuit 17 ELE2601/101/3/2018 4.2 A balanced three-phase load is connected to a three- phase, 380-V supply. The load takes 7,5 kW at a power factor of 0,8 lagging. Calculate the resistance and reactance of each phase if the load is star-connected. 4.3 A three-phase cable supplies power to a balanced three- phase load. Each conductor carries a current of...
(4) Three single-phase AC loads draw power from the same 12020으 kms source. Load 1 draws...
(4) Three single-phase AC loads draw power from the same 12020으 kms source. Load 1 draws 120 w at a lagging PF of 0.75, Load 2 draws 75 VA at a leading PF of 0.6 and Load 3 draws 100 VA at a leading PF of 0.8. Determine the complex power consumed by each load. Calculate the rms current phasor for each load. a. b.
e. What of curent and potential transformers in power system protection. g off a 400 V,...
e. What of curent and potential transformers in power system protection. g off a 400 V, s0 Hz supply is developing 10 kW with an efficiency of A single-phase motor operatin 94 percent and a power factor (p.f) 0.7 lagging L. the input apparent power iä the active and reactive components of the current; ii the reactive power (in kilovars) iv. Draw the power triangle . Using Phasor dingram, the capacitance required in parallel with the motor of to raise...
2.11. A 4157-V rms, three-phase supply is applied to a balanced Y-connected three-phase load consisting of three id...
2.11. A 4157-V rms, three-phase supply is applied to a balanced Y-connected three-phase load consisting of three identical impedances of 48236.87°2. Taking the phase to neutral voltage Van as reference, calculate (a) The phasor currents in each line. (b) The total active and reactive power supplied to the load.
Question 2- An alternating current power supply is connected as shown in the figure to a...
Question 2- An alternating current power supply is connected as shown in the figure to a resistor, a capacitor, and an inductor. The power supply provides a voltage given by ε(t)-fo . cos(ωt). a) Make a phasor diagram and draw the voltage and current phasors for the resistor, capacitor, and inductor. (Be sure the phase relations between each phasor is clear, and be sure to label all phasors.) b) Use your diagram to find an equation for lo (the amplitude...
Problem 7 Three three-phase wye-connected loads are in parallel across a three-phase supply. The first load draws a cur...
Problem 7 Three three-phase wye-connected loads are in parallel across a three-phase supply. The first load draws a current of 10 A at pf- 0.93 (leading), and the second and third loads (each) draw a current of 20 A at pf= 0.85 (lagging). Suppose the line-to-line voltage is 240 V. Compute the following: a) The transmission line current b) The load power factor c) The complex power supplied by the source
Problem 7 Three three-phase wye-connected loads are in parallel...
A single-phase electrical motor draws a current of 20 A from 240, 60 Hz line. A...
A single-phase electrical motor draws a current of 20 A from 240, 60 Hz line. A Fluke wattmeter is connected into line gives an active power (P) reading of 3,792 W. with line, neutral, appropriate fuse, switch, and motor itself. (DO NOT forget chassis ground of the motor for the safety of people working in/around the motor). Show a simple wiring diagram (a) Calculate the power factor (cost) of the motor and reactive power () it absorbs. (b) If we...
QUESTION 3 31A cable is required to supply a welding set taking a current of 225 A at 110 V alternating current, the average power factor being 0 5 lagging An available cable has a rating of 175 A and it is decided to use this cable by installing a capacitor across the terminals of the welding set Fınd 311 the required capacitor current and reactive power to limit the cable current to 175 A the overall power factor with...
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...
please take note the question is extend
a) A single phase 240V 50Hz supply is supplying a power to a load which consist of 500 resistance and 0.3H inductance through a cable which has an effective impedance of 1+j2 0. The equivalent circuit of the single-phase system is shown in Figure Q1(a). Zcable=1+j2 I Load 5092 240V 50Hz Supply V Load 0.3H Figure Q1(a): A single phase system. i. ii. Determine the load current, low and the load voltage Vood...
b) the r.m.s.value of the supply current c) the r.m.s.value of the current, and d) the resultant power factor of the circuit 17 ELE2601/101/3/2018 4.2 A balanced three-phase load is connected to a three- phase, 380-V supply. The load takes 7,5 kW at a power factor of 0,8 lagging. Calculate the resistance and reactance of each phase if the load is star-connected. 4.3 A three-phase cable supplies power to a balanced three- phase load. Each conductor carries a current of...
(4) Three single-phase AC loads draw power from the same 12020으 kms source. Load 1 draws 120 w at a lagging PF of 0.75, Load 2 draws 75 VA at a leading PF of 0.6 and Load 3 draws 100 VA at a leading PF of 0.8. Determine the complex power consumed by each load. Calculate the rms current phasor for each load. a. b.
e. What of curent and potential transformers in power system protection. g off a 400 V, s0 Hz supply is developing 10 kW with an efficiency of A single-phase motor operatin 94 percent and a power factor (p.f) 0.7 lagging L. the input apparent power iä the active and reactive components of the current; ii the reactive power (in kilovars) iv. Draw the power triangle . Using Phasor dingram, the capacitance required in parallel with the motor of to raise...
2.11. A 4157-V rms, three-phase supply is applied to a balanced Y-connected three-phase load consisting of three identical impedances of 48236.87°2. Taking the phase to neutral voltage Van as reference, calculate (a) The phasor currents in each line. (b) The total active and reactive power supplied to the load.
Question 2- An alternating current power supply is connected as shown in the figure to a resistor, a capacitor, and an inductor. The power supply provides a voltage given by ε(t)-fo . cos(ωt). a) Make a phasor diagram and draw the voltage and current phasors for the resistor, capacitor, and inductor. (Be sure the phase relations between each phasor is clear, and be sure to label all phasors.) b) Use your diagram to find an equation for lo (the amplitude...
Problem 7 Three three-phase wye-connected loads are in parallel across a three-phase supply. The first load draws a current of 10 A at pf- 0.93 (leading), and the second and third loads (each) draw a current of 20 A at pf= 0.85 (lagging). Suppose the line-to-line voltage is 240 V. Compute the following: a) The transmission line current b) The load power factor c) The complex power supplied by the source
Problem 7 Three three-phase wye-connected loads are in parallel...
A single-phase electrical motor draws a current of 20 A from 240, 60 Hz line. A Fluke wattmeter is connected into line gives an active power (P) reading of 3,792 W. with line, neutral, appropriate fuse, switch, and motor itself. (DO NOT forget chassis ground of the motor for the safety of people working in/around the motor). Show a simple wiring diagram (a) Calculate the power factor (cost) of the motor and reactive power () it absorbs. (b) If we...
Most questions answered within 3 hours.
-
D. A student completed 20 courses in the School of Arts and
Sciences. Her grades in...
asked 4 minutes ago -
teo
pucks moving on a frictionless air table are about to collide. the
1.5 kg puck...
asked 9 minutes ago -
Problem #1
The area between Z = 0 and Z = 2.50
The area between Z...
asked 1 hour ago -
1. What is the meaning of the term communication style?
2. What are the benefits to...
asked 1 hour ago -
9.) You are buying a car that cost $26,500. You make payments of
$412 each month...
asked 1 hour ago -
. Suppose a discrete random variable has probability
distribution
P(x) = .2 if x = 0...
asked 2 hours ago -
Under the influence of its drive force, a snowmobile is moving
at a constant velocity along...
asked 3 hours ago -
Why do organizations decline? What steps can top
management take to halt, decline, and restore organizational...
asked 3 hours ago -
What mechanisms Drive speciation??
(I.e. what was Dawins theory on the orgin of species, and how...
asked 4 hours ago -
The manager at a car assembly plant believes that the mean
assembly time for a car...
asked 5 hours ago -
Which of the following is true of electron capture?
A) It decreases the nuclide's mass number...
asked 7 hours ago -
Assuming an efficiency of 43.10%, calculate the actual yield of
magnesium nitrate formed from 114.9 g...
asked 7 hours ago