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Athree-phase,wye-connected, 220-V, 10-hp, 60- Hz, six-pole inductionmotor (using Figure 13.2.6 for notation) has the following parameters in ohms per phase referred to the stator: R1 = 0.294, R 2 = 0.144, Xl1 = 0.503, X 12 = 0.209, and Xm = 13.25. The total friction, windage, and core losses can be assumed to be constant at 403W, independent of load. For a slip of 2.00%, compute the speed, output torque and power, stator current, power factor, and ef?ciency when the motor is operated at rated voltage and frequency. Neglect the impedance of the source.
Change the brightness of the most beneficial illuminated LED to represent voltages among the ranges so that if the value is half way among the range then the LED should be 50% brig
A synchronous generator has a rotor with six poles and operates at 60 Hz. (a) Determine the speed of prime mover of the generator. (b) Repeat part (a) if the generator has 12
Q. For the mechanical spring-mass-friction system shown in Figure, the differential equation relating the force F(t) and the velocity u(t) is given by where M is themass,D
nodal analysis
Q. Define Resistance Strain Gauge? Mechanical and civil engineers routinely employ the dependence of resistance on the physical dimensions of a conductor to measure strain. A s
Q. Implement the following Boolean functions by employing 8-to-1multiplexers. (a) F 1 (A,B,C) = Σ m i (0, 2, 4, 6) (b) F 2 (A,B,C) = Σ m i (1, 3, 7)
phase shifter with examples
V- I Characteristics The operation of the diac can be explained by imagining it as two diodes connected in series. When applied voltage in either polarity is small ( less t
Q. Aconical horn has a side viewas shown in Figure The maximum value ofthe directive gain is given by GD ∼ = 5.13(D/λ) 2 , where D =√3.33λL1 and L1 = L/(1-d/D),in which d is the i
Q. Consider the balanced three-phase alternating currents, shown in Figure, to be flowing in phases a, b, and c, respectively, of the two pole stator structure shown in Figure with
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