4. A load absorbs 100 kW at a power factor of 0.7 lagging from a 240-V 50-Hz source. The power factor at the source terminals is to be raised to 0.9 lagging by placing a capacitor in parallel with the load. (a) Find the capacitance required in μF. (b) Find the reactive power delivered by the capacitor. 5. Two single-phase sources are connected by a line of impedance Z₁ = 0.7+ j2.4 2 as shown in the figure. The source voltages are E₁ =500 16.26 V and E₂ =5850° V. Find the complex power for each source and determine whether they are supplying or receiving real and reactive power. Also find the real and reactive power loss on the line. Z₁=0.7+j2.42 E₁ + + E₂

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4. A load absorbs 100 kW at a power factor of 0.7 lagging from a 240-V 50-Hz source. The power factor
at the source terminals is to be raised to 0.9 lagging by placing a capacitor in parallel with the load.
(a) Find the capacitance required in μF.
(b) Find the reactive power delivered by the capacitor.
5. Two single-phase sources are connected by a line of impedance Z₁ = 0.7+ j2.4 2 as shown in the
figure. The source voltages are
E₁ =500 16.26 V and E₂ =5850° V.
Find the complex power for each source and determine whether they are supplying or receiving real and
reactive power. Also find the real and reactive power loss on the line.
Z₁=0.7+j2.42
E₁
+
+
E₂
Transcribed Image Text:4. A load absorbs 100 kW at a power factor of 0.7 lagging from a 240-V 50-Hz source. The power factor at the source terminals is to be raised to 0.9 lagging by placing a capacitor in parallel with the load. (a) Find the capacitance required in μF. (b) Find the reactive power delivered by the capacitor. 5. Two single-phase sources are connected by a line of impedance Z₁ = 0.7+ j2.4 2 as shown in the figure. The source voltages are E₁ =500 16.26 V and E₂ =5850° V. Find the complex power for each source and determine whether they are supplying or receiving real and reactive power. Also find the real and reactive power loss on the line. Z₁=0.7+j2.42 E₁ + + E₂
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