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A delta-connected load and a wye connected capacitor bank are supplied through a feeder. The delta connected load consists ofthree identical resistive-inductive impedances of Zdelta = 50 angle40 per phase. The source is wye connected and consists of a threephase voltage source of 240 volts (line to line). The feeder has aconductor impedance of Z = 2+j2 per phase.
a) The current and line to line voltage at the load terminalswithout the capacitor bank.b) The resulting line to line voltage at the load terminals if thewye connected capacitor bank is connected in parallel with theload. The capacitor bank has a reactance of X = -35 per phase.c) Discuss the effects of the capacitor bank on the voltage at theload terminals.
Find the inverse z-transform, x(n), of the following functions by bringing them into a form such that you can look up the inverse z-transform from the tables. This will require some algebraic and /or trigonometric manipulation/calculation.
A copper busbar 10cm wide, 5 mm thick, and 10 m long carries a current of 2kA, Calculate the voltage drop if the temperature of the busbar is 120 degree. What is the power loss per meter
The fluid travels through a conduit of negligible resistance; an accumulator is included to smooth out the pulsations of the pump. A hydraulic load (modeled by a fluid resistance R) is connected between a pipe and a reservoir (assumed at zero pres..
In class we saw an example of 'Beat note'. In this problem we consider a more general case. Let fc > 0, fd > 0 and define a signal x as.
What is the thermal noise level of a channel with bandwidth 10kHz carrying 1000. Watts of power at 50o C?
A telecommunication system has a link bandwidth of 10 MHZ, signal propagation of 3.5 x 10^8 m/s, transmitting as 1500 frames per minute, with 15000 bits per frame, over a distance of 100 km. What is the bandwidth-delay product?
An Alternator is found to have its terminal voltage on load condition more than that on no load. What is the nature of the load connected
Charges +Q and +3Q are separted by a distance 2m. A third charge is located such that the electrostatic system is in equilibrium. Find the location and kthe value of the third charge in terms of Q.
Suppose that a current x(t) = e^-0.5t for t > or equal to 0, and zero otherwise is applied to a discharged capacitor of capacitance C =1F at t = 0 sec. What would be the voltage in the capacitor at t= 1 seconds
A line charge of uniform charge density (l) forms a circle of radius b that lies in the xy-plane in air with the center at the origin. a) Find the electric field intensity E at the point (0,0,h) b) At what value of h will E in part (a) be a maximum
Design a device that creates a voltage that is a damped oscillation with a frequency of 5 radians per second and a time constant of 3 seconds. In particular, explain how initial conditions are to be handled.
The ABCD constants of a three-phase, 345-kV transmission line are A = D = 0:98182 + j0:0012447. The line delivers 400 MVA at 0.8 lagging power factor at 345 kV. Determine the sending end quantities, voltage regulation, and transmission efficiency.
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