Question

In: Electrical Engineering

Two parallel connected loads take a total of 2.4 kW, with a 0.8 line delay at...

Two parallel connected loads take a total of 2.4 kW, with a 0.8 line delay at 120 Vrms and 60 Hz. One load absorbs 1.5 kW with a fp delay of 0.707.
Determine:
a) The fp of the second charge
b) The parallel element required to correct the fp of the two loads and convert it to a delay of 0.9

Solutions

Expert Solution


Related Solutions

Two loads connected in parallel draw a total of 4 kW at 0.68pf lagging from a 120-v ms, 60-Hz line.
Two loads connected in parallel draw a total of 4 kW at 0.68pf lagging from a 120-v ms, 60-Hz line. One load absorbs 3.3 kVAR at a 0.6 pf lagging. Determine: a) The pf of the second loadb) The capacitor value in Farads required to correct the overall pf from 0.68 to 0.9 lagging for combine loads. c) The current drawn from the supply under the new power factor of 09.
Three loads are connected in parallel to an AC supply of 120∠0° V. The loads are...
Three loads are connected in parallel to an AC supply of 120∠0° V. The loads are 40∠30° Ω, 50 - j30 Ω and 30 + j40 Ω. a) Draw the circuit diagram b) Determine the amplitude and phase angle of the supply current graphically by constructing a phasor diagram using a suitable scale of the load currents and source voltage. c) State the overall power factor using the answer from part (b). d) Construct another phasor diagram for the system...
Two different loads are fixed in a straight line on (or parallel to) the x axis,...
Two different loads are fixed in a straight line on (or parallel to) the x axis, and they are 39.1 m apart. The charge on the extreme right is Q2 = -16.2C, and the electric field at a distance 39.1 m to the right of Q2 is zero. What will be the magnitude of the charge Q1 (the one on the far left)? Select one: -3.24 C -32.40 C 64.80 C 08.10 C 32.40 C
Two loads Z1 = 100+j0 ? and Z2=10+j20 ? are connected in parallel across a 200...
Two loads Z1 = 100+j0 ? and Z2=10+j20 ? are connected in parallel across a 200 V supply. 1) Write a user oriented MATLAB program that will calculate the capacitance of the capacitor connected across the loads to improve the overall power factor to 0.8 lagging,0.9 lagging, unity power factor, 0.8 leading, 0.9 leading. Also MATLAB will calculate total reactive, real power, and the total current at the source for each ste
Three balanced 3-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of...
Three balanced 3-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of 400 + j300 ? per phase, load 2 is ?-connected with an impedance of 2400 – j1800 ? per phase, and load 3 is absorbing 172.8 + j2203.2 kVA. The loads are fed from a set of distribution lines with an impedance of 2 + j16 ? per line. The magnitude of the line-to-neutral voltage at the load end of the line is 24?3...
Three balanced three-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of...
Three balanced three-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of 420+300i Ω/ϕ ; load 2 is Δ-connected with an impedance of 2400-1780i Ω/ϕ ; and load 3 is 170.1+2201i kVA . The loads are fed from a distribution line with an impedance of 2+17i Ω/ϕ . The magnitude of the line-to-neutral voltage at the load end of the line is 23√3 kV. Part A: Calculate the total complex power at the sending end of...
Two balanced three phase loads are connected to a busbar with 10kV line voltage at 50Hz....
Two balanced three phase loads are connected to a busbar with 10kV line voltage at 50Hz. Load A is 168kVA at cosφ = 0,85 (lagging). Load B is connected in Y and draws a complex phase current ?? = 4,79∠ − 24,5°. Calculate the total active, reactive and apparent power at the busbar. Calculate the combined cosφ at the busbar. A third balanced load is connected to the busbar.The total power at the busbar is now 288kW, cosφ = 0,87...
Two 60.0 Ω resistors are connected in parallel and this parallel arrangement is then connected in...
Two 60.0 Ω resistors are connected in parallel and this parallel arrangement is then connected in series with a 30.0 Ω resistor. The combination is placed across a 120V potential difference. Can you design the circuit diagram using above data? According to your observation show that total voltage is equal to the sum of the individual voltage and also show that total power dissipated is equal to the sum of the power dissipated by individual resistor. Also suggest what will...
20.Two 60.0 Ω resistors are connected in parallel and this parallel arrangement is then connected in...
20.Two 60.0 Ω resistors are connected in parallel and this parallel arrangement is then connected in series with a 30.0 Ω resistor. The combination is placed across a 120V potential difference. Can you design the circuit diagram using above data? According to your observation show that total voltage is equal to the sum of the individual voltage and also show that total power dissipated is equal to the sum of the power dissipated by individual resistor. Also suggest what will...
An isolated parallel-plate capacitor (not connected to a battery) has a charge of Q = 2.4×10−5C....
An isolated parallel-plate capacitor (not connected to a battery) has a charge of Q = 2.4×10−5C. The separation between the plates initially is d = 1.2 mm, and for this separation the capacitance is 3.1×10−11F. Calculate the work that must be done to pull the plates apart until their separation becomes 8.3 mm, if the charge on the plates remains constant. The capacitor plates are in a vacuum. Express your answer using two significant figures
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT