8. Identify the diagram below and determine the voltage across the Load. What which law did you use to establish the parameter?
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- 5. A strong driver with Thevenin equivalent resistance of 10 ohms drives a transmission line with Z 40 ohms. The load is terminated with 30 ohms resistor. Plot the voltage at the 1/3 point and end of the line.A 3-phase transmission line is being supported by three-disc insulators. The potentials across top unit (i.e. near to the tower) and middle unit are 8 KV and 11 KV respectively. Calculate: 1) The ratio of capacitance between pin and earth to the self-capacitance of each unit 2) The line voltage 3) String efficiency Subject Power Transmission And DistributionThe example of a nearly equivalent uniformly distributed load on feeder is motor load connected in a factory domestic load on a 3-Φ line street light loading on a 1-Φ line Electric traction load
- A single phase a.c. distributor AB 300 meters long is fed from end Aand is loaded as under :• 100 A at 0·707 p.f. lagging 200 m from point A• 200 A at 0·8 p.f. lagging 300 m from point A• The load resistance and reactance of the distributor is 0·2 Ω and 0·1 Ωper kilometer. Calculate the total voltage drop in the distributor. Theload power factors refer to the voltage at the far end.02: For the network shown in figure (2), determine Zs to ensure maximum power delivered 10 the load and then calculate the associated maximum power at the load. E= 120V 20 XeFR60 Figure 2).For a 220V, 60Hz single phase voltage controller is used for controlling flow of power in to a circuit consisting load of Xl =12 ohms and R=5 ohms. Which of the following represents the correct value of the maximum power and power transfer? (a) Pmax=9.68 kW, p.f =0.6 (b) Pmax=3.72 kW, p.f =0.6 (a) Pmax=9.38 kW, p.f =0.38 (a) Pmax=1.43 kW, p.f =0.38
- Determine the Norton equivalent of the following circuit, ISC and RN . Calculate the load current IL for RL = 10 ohm. R1 = R4 = 2 ohm , R2 = 6 ohm, R3 = 3 ohm, and R5 =6 ohm. The network is supplied with a current source of I1 = 1A.Calculate the magnitude of the load's line voltage. (Answer : VL=205.2 Vrms)α=4 β=4For the adjacent circuit, Vab=(400+5β)V is given and the source part is balanced. Since it is known as ZAN=j2α Ω, ZBN= 3α Ω and ZCN=-j3α Ω, calculate the value of the current Ib by its angle, ignoring the impedances of the transmission lines.Can you please post your solutions, it's very important
- A 3- phase star connected load has resistance of 4 Ω, inductance of 15.9mH & a capacitive reactance of 6 Ω respectively in R B & Y phases. If the load is connected to 400V, 50Hz supply, i. Calculate the neutral current .ii. Find the total power absorbed by the load.iii. Draw the current phasorsQuestion 2In a Δ -Δ system the following apply to the load:Zab = 12.6 ∟44° ΩZbc = 21.3 ∟-39° ΩZca = 17.4 ∟62° ΩThe load is supplied from a 60 Hz, symmetrical 3-Ø supply with Vca = 380 ∟-30° V and an abc notation. Calculate the line currentsA single phase a. C distributor AB 300mts long if fed from end A is loaded as under a) 100amps at 0.707 p.f lagging 200mts from pointA(b) 200amps at 0.8p.f lagging 300mts from point A. The total resistance and the Reactance and the distributor is0. 2ohms and0. 1ohms per km respectively. Calculate the total voltage drop in the distributor. The load power factors refer to the voltage at the far end