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An automatic automotive spray painting system consists of conveyors, spraying, dust and overspray extraction fans with electrostatic and water walls, finishing with baking ovens. This system is connected to a 415V, 50 Hz three phase and has been three divided into three balanced loads, as follows:
LOAD 1 (DELTA): 150 kVA at a power factor of 0.60 lagging;LOAD 2 (STAR): 44 kW at a power factor of 0.55 leading;LOAD 3 (STAR): ZR = ZW = ZB = 3.5 + j 2.75 O;
(i) Draw a diagram of the loads.Determine: (ii) The apparent power (kVA), active power (kW) and reactive power (kVAr) of each of the three loads.(iii) The total apparent power kVA, total active power (kW) and the total reactive power (kVAr) of the loads.(iv) The capacitive kVAr required to correct the overall supply power factor to 0.85 lagging.(v) The line current drawn from the three phase supply before and after power factor correction.
(1) If you have a transformer that is not in a circuit, how can you tell/determine what the ratio is (2) How do you tell if a diode is forward or bias. How much voltage is assumed dropped across a forward biased silicon diode.
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In the United States, coal is a fossil fuel, used mainly to fuel the energy needed for electric power plants to manufacture electricity. The air pollution caused by burning coal has been linked to health problems and concerns for the general popul..
Design a continuous time system to generate output y(t)=sin(wt)u(t) when the input is a unit step function. Specify the system using a differential equation.
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What is the cross price elasticity of demand between XYZ's and AB C's widgets?
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