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A 100-hp 440-V 0.8-PF-leading Δ-connected synchronous motor has an armature resistance of 0.22Ω and a synchronous reactance of 3.0Ω. Its efficiency at full load is 89 percent.
(a) What is the input power to the motor at rated conditions?
(b) What is the line current of the motor at rated conditions? What is the phase current of the motor at rated conditions?
(c) What is the reactive power consumed by or supplied by the motor at rated conditions?
(d) What is the internal generated voltage EA of this motor at rated conditions?
(e) What are the stator copper losses in the motor at rated conditions?
(f) What is Pconv at rated conditions?
(g) If EA is decreased by 10 percent, how much reactive power will be consumed by or supplied by the motor?
a 3-phase slip ring induction motor gives a reading of 60volts,across a slip ring of open circuit. When at rest with normal statervoltage applied, the rotor is star connected and has an impedanceof (0.6+6j)Ω per phase.
When the scope probe is properly calibrated, it can be modeled as a 9[M Ohm] resistor in parallel with a capacitor having a capacitance l/9th that of the oscilloscope input capacitance.
a buried stainless steel nuclear waste storage tank contains significant amounts of dissolved radioactive cr3 al3 fe3
Use a capacitor, a resistor and an operational amplifier circuit to design an active first order low pass filter which passes frequencies that human can hear (below 15kHz). Show all the calculations required to find the values of all the passive comp..
If the resultant force acting on the bracket is required to be a minimum, determine the magnitudes of F1 and the resultant force. Set F =30°.
A series RLC circuit has elements with the following values: R=10Ω, L= .5H, and C=2μF. What is the resonant frequency of this circuit
A "Clock" pulse for a flip-flop could be generated by manually filpping a switch from 0 to 1 and then back to 0. but switches such as those on the logic designer "bounce" when switched from on state to another.
Design a Common Emitter amplifier with no bypass capacitor to obtain a voltage gain of -10 when Rin= 2k, Rload= 4k, VCC= 15V, VBE= 0.6V, and beta= 300. This amplifier requires an output swing of 4V peak-to-peak.
1. Express the Boolean function f(X,Y,Z) = XY + X(Y + Z) in sum of products form showing the sum all nonzero minterms. 2. Express the Boolean function f(A,B,C,D) = A(B + BC) + ACD in sum of products form showing the sum all nonzero minterms.
Find the output y[n] of an LTID system specified by the equation 2y[n+2] - 3y[n+1] = y[n] = 4x[n+2] - 3x[n+1]if the initial conditions y[-1] = 0, y[-2] = 1, and the input x[n] = (4)^-n u[n]
Suppose the information portion of a packet contains 10 bytes consisting of the 8- bit unsigned binary ASCII representation of string "Link Layer".
(a) How many atoms are there in the unit cell characterizing the Si lattice (b) Verify that there are 4.994 X 1022 atoms/cm' in the Si lattice at room temperature. (c) Determine the eenter-to-center distance between nearest neighbors in the Si lattic..
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