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A balanced, three-phase, Y-connected source has a line voltage of 440 Vrms. The source frequency is 60 Hz. The balanced, three-phase loads have the following characteristics:Zy1: P1 = 15 kW and Q1 = +18 kVARZ?2: |S2|=21 kVA and PF2 = 0.500 laggingZ?3: PF3 = 0.2 lagging and Ip3 = 25 A rmsZy4: 1.67?60º O(note, power values are all three-phase quantities)
1. Determine each impedance and the current for each load.2. Determine the total line current, IaA.3. Determine the total complex power, average power, and reactive power delivered by the source to the loads.4. What is the power factor of the four loads combined?5. It is necessary to add a parallel load in the configuration to the circuit to minimize the magnitude of the line current. The line voltage and total average power delivered by the source may not change. What are the impedance and the component value of this load?6. What is the power factor of the additional load?7. What is the power factor of the five loads combined?
Assume that the basic inverter has (W/L)n = 0.5 um/0.25 um and (W/L)p = 2 um/0.25 um. What is the minimum area occupied by the circuit neglecting contact areas. Assume that the inputs A and B and their complements are available.
If you were the operator for an squirrel cage induction machine, what options could you consider to control speed Describe and mention pluses and minuses of each.
determine the transfer function of a 4th order lowpass butterworth filter with a 3-dB cutoff frequency of 3.4 kHz and passband gain=1. Design the circuit using MFB topology. Design two sections with an order of 2.
1.Convert 5EDA into binary number. What makes base 16 (Hexadecimal) an attractive numbering systems for representing values in computers 2. What is 4365 - 3412 when these values represent unsigned 12-bit octal numbers
The basic column control system shown in Figure is somewhat more complicated than the basic neutralizer control system
The following represent solutions of the transmission line differential equations for some arbitrary function f(u): V(z,t) = 60 cos(1000t -5z) - 120 pi f (2t + z/100+12) V I(z,t) = 2 pi f (2t +z/100 +12) - cos (1000 t -5z) A a) what is the forward pr..
A pulsar lies 1000 light years from Earth. The average plasma concentration is 1 el/cc. Using the plasma dispersion relationship for group speed, what is the group delay between a pulsar pulse received at 1 GHz and at 800 MHz
Design a second-order band-pass IIR filter with center frequency of 450 Hz when the sampling frequency is 2,000 Hz. In order to ensure the filter stability, set the poles at 0.96 radial distant from the origin
A magnetic flux of 400 microwebers passing through a coil of 1200 turns is reversed in 0.1 sec. Calculate the average value of the e.m.f induced in the coil. ( HInt use Faraday's Law)
a. The input G=0, H=0 is not allowed for this flip-flop. Why b. What is the excitation table for the GH flip-flop c. Use GH flip-flops to construct a counter to count the following sequence: 000 -> 001 -> 010 -> 100 -> 000
a) If accA holds $16 and accB holds $2A, what values will be in the each accumulators after executing the ABA instruction b) What series of instructions would achieve the 16-bit subtraction of $1234 from $8ABC
a. if the input r(t)=5u(t), ie. R(s)=5/s, find the steady-state of C(t), b. Approximately how many seconds are required for the system to reach steady state note you two time constants to consider, and c. Do you expect the transient response to be o..
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