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A 1,200-V, three-phase, wye-connected synchronous motor takes 110 kW (exclusive of field winding loss) when operated under a certain load at 1,200 rev/min. The back emf of the motor is 2,000 V. The synchronous reactance is 10 Ω per phase, with negligible winding resistance. Find the line current and the torque developed by the motor.
A rod on the surface of Jupiter's moon Callisto has a volume of 0.3 cubic meters. Determine the weigh of the rod in units of pounds-force. The specific gravity is 4.7 gravitational acceleration on Callisto is 1.25 meters per second squared.
By inspection, write the mesh-current equations for the circuit in given figure.
An engineer attempts to build a remotely actuated door lock for asecurity operation. The door is powered by an electromagnetic actuator whose coil can be modeled as a 500Ω resistor .The actuator requires a minimum of 100mA of current for reliable ..
The equation of a particle executing S.H.M is x = 5 sin((TT )t +n/3)). Find the amplitude , time period and maximum speed also find velocity at t = 1sec
Design a sequential system to continuously output your set of eight different digits (01275438) in binary at the rate of one digit per clock pulse.
Convert the indexed image to gray scale.
The source has an abc-phase sequence. At the wye-connected load, the phase-a voltage Va'n' has phase angle (theta)a'n' = 60 degrees and the phase impedance is (10 + j15) ohms. Further, the line impedance per phase is (1.1+ j1.5) ohms
That is, m = 36 kg/h, with all other conditions the same. The thermo physical properties of the hot fluid are p = 1079 kg/m3, cp = 2637 J/kg · K, µ = 0.0034 N · s/m2, and k = 0.261 W/m · K.
What is the motor efficiency as operated?
Consider the two-pole motor shown in Figure 16.10 on page 778. The gap between the rotor and stator is 1.5 mm. Each of the two field coils has 250 turns and carries a current of 3 A. Assume that the permeability of the iron is infinite. Determine ..
The known quantities in given series RL circuit are asfollows: resistance equals 8-ohm, inductive reactance equals 39?current equals 3A, and the applied voltage is 120- volts 60 Hz.Determine the following unknown quantities
a single span of an overhead line is 250 ft in length, having the supporting poles at the same level. the maximum tension in the conductor is 855 lb. the weight of conductor is 0.125 lb/ft.
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