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Two machines and a lighting load are connected in parallel to a 240 V(rms), 60 Hz line. The first machine uses 230 kW of power at 0.85 power factor lagging. The second machine uses 95 kVA at 0.882 power factor leading. The lightening load consumes 38 kW.
(a) Sketch and label a power triangle for each of the three devices.
(b) Sketch and label a power triangle for the combined loads.
(c) What is the current in the line feeding the three loads?
(d) What kVAR value of capacitance connected across the line is necessary to obtain a power factor of 0.97 lagging?
(e) With this capacitor installed, what will be the current flowing in the line feeding the four loads?
Determine zero-input response of (D2+4D+40)y(t)=(D+2)x(t) with initial condition y0(0)=2 & dy0(0)/dt=16.78.
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Generate a new random variable X with pdf fX. Specifically, we want to generate a Gaussian random variable and relationship between Rayleigh and Gaussian distributions.
An AM broadcast receiver's pre-selector has a total effective Q of 90 to a received signal at 1180 kHz and uses an IF of 455 kHz. Calculate the image frequency and its dB of suppression.
Half-Wave Rectifier, For the half-wave rectifier, the source is a sinusoid of 120 Vrms at a frequency of 60 Hz. The load resistor is 5 ohms. Determine
Knowledge about Circuit Analysis, A 5.1K resistor is connected between the cathode of a 6.2V zener diode and a 12V power supply
The system uses a 7-cell reuse pattern. If the offered traffic per user is 0.03 Erlangs and the average number of calls per hour per user is 1.5, for an Erlang-C system with a probability of delaying a call being 5%, calculate the traffic load per..
e) What is the value of C such that the energy stored in the capacitor equals the energy stored in the inductor f) How much energy is stored in the 3.9?F capacitor Use the formula for the energy. g) What is the power dissipated in the resistors
Write an assembly code segment that calls the subroutine New Function if bits 5 and 6 of PORTD equal 1. Write the same code segment in part (a) using structured assembly constructs.
What is the resistivity of the wire? conductivity? Using the original dimensions of the wire, how much current can you pass through the wire until a 5V signal is degraded 5% or more?
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