se load is 100W. Draw the system and calculate the magnitude of the load impedance.
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- In the circuit in the figure; L1 load draws 15 kVA with lagging power factor 0.6. The L2 load draws 6 kVA with a leading power factor of 0.8. According to this; What is the value of the complex power for the L2 load?Three-phase supply from utility The diagram shown in figure has two three- phase loads that form part of a manufacturing plant. They are connected in parallel and require 4.16 kV rms. Load 1 is 1.5 MVA, 0.75 lag pf A connected. Load 2 is 2 MW, 0.8 lagging pf, Y connected. The feeder from the power utility's substation transformer has an impedance of 0.4+j0.8 2/phase. Deter- mine the following: (a) The required magnitude of the line voltage at the supply. (b) The real power drawn from the supply. (c) The percentage of the real power drawn from the supply that is consumed by the loads. 0.4 Ω j 0.8 Ω 0.4 Ω j 0.8 Ω 0.4 Ω j 0.8 Ω m Load 1 am Load 2Given: 1. 2 wye-connected loads per phase to a 3 phase power source 2. first load consists of a 55ohm resistance and a 0.05H inductance per phase 3. second load consumes 1kW and power factor of 0.7 lagging per phase 4. RMS of voltage across the loads are 220V, frequency 120Hz per phase 5. single phase equivalent is shown in the figure: Question: What are the real, reactive, and apparent powers seen at load 1? Give also the power factor.
- Given: 1. 2 wye-connected loads per phase to a 3 phase power source 2. first load consists of a 55ohm resistance and a 0.05H inductance per phase 3. second load consumes 1kW and power factor of 0.7 lagging per phase 4. RMS of voltage across the loads are 220V, frequency 120Hz per phase 5. single phase equivalent is shown in the figure: Question: What is the total power drawn from the 3 phase source?The circuit shows an unbalanced electrical installation powered by a positive sequence symmetrical three-phase network of 380 V compound voltage. The loads are single phase. Load 1 absorbs an active power of 950 W with f.d.p. 0.5 inductive. Load 2 absorbs an active power of 1,140 W with f.d.p. Unit. Load 3 absorbs from the network an active power of 760 W with f.d.p. 0.5 capacitive. Taking the network voltage URN as the phase reference, calculate: a) complex expressions of the line currents IR. Is. and ITThe circuit shows an unbalanced electrical installation powered by a positive sequence symmetrical three- phase network of 380 V compound voltage. The loads are single phase. Load 1 absorbs an active power of 950 W with f.d.p. 0.5 inductive. Load 2 absorbs an active power of 1,140 W with f.d.p. Unit. Load 3 absorbs from the network an active power of 760 W with f.d.p. 0.5 capacitive. Taking the network voltage URN as the phase reference, calculate: a) complex expressions of the line currents IR. Is. and IT RO- SO TO IR Is IT U₁-380 V CARGA 1 P₁ =950 W cos p1=0,5 ind. CARGA 2 P₂=1.140 W cos p₂=1 CARGA 3 P3=760 W cos p3=0,5 cap.
- 2.5. Two loads connected in parallel are supplied from a single-phase 240-V rms source. The two loads draw a total real power of 400 kW at a power factor of 0.8 lagging. One of the loads draws 120 kW at a power factor of 0.96 leading. Find the complex power of the other load.A load has a leading power factor. a) Is it a capacitive or inductive load? b) Is the reactive power positive or negative? c) Repeat for a load with lagging power factor5. The figure below shows two star connected loads with three phase power. The voltage source is 120Z0°. The loads are Z₁ = 10 + j4 № and Z₂ = 2 +j3 №. The cables are negligible. Calculate: a) the line and phase current. b) the real power from the source. c) the reactive power of the circuit. Is V N Z₁ Z₁ Z₁ Z₂ Z₂ N N Z₂
- A three-phase circuit is balanced. The source voltage for the a-phase has a magnitude of 100 volts, and you can assume the phase angle is a reference of 0 degrees. Write the phasor expressions with proper subscript notation for the source voltage for each leg of the three-phase source if it is in a positive phase sequence.2. For the following system shown in the figure, calculate: a. The current through each phase of the load. b. The total real and reactive power of the three-phase load. c. The power factor at the load side. A 220 V 20° 220VL-120° U8 vol 152 I 220 VI20° 9. M.Sketch the phasor diagram of the above circuit in terms of impedance, voltage, and the power triangle.