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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 poles.
(c) Repeat part (a) if the generator has 2 poles.
No-load test: line-to-line voltage 400 V, input power 1770 W, input current 18.5 A, and friction and wind age loss 600 W
Negligible heat is transferred from the nozzle to its surroundings. The approach velocity of the steam is negligible. The specific enthalpy of steam is 2974J/kg at 260°C and 7bar and 2860kJ/kg at 200°C and 4bar. Use the open-system energy balance ..
Following 5.0 hours of operation, the pellets are reweighed and found to have a mass of 3.52 kg. Calculate the molar flow rate (mol/h) of the feed gas and the mole fraction of water vapor in the product gas.
The March 1979 accident at the Three Mile Island nuclear plant occurred due to a series of operator errors and equipment failures, which reduced the flow of cooling water to the reactor core. As a result, the water began to boil and the core reached ..
The addition of an oxidizing agent such as chlorine water to a clear solution of an unknown compound results in the appearance of a brown color. When this solution is shaken with the organic solvent, methylene dichloride, the organic solvent layer..
A Hollow steel sphere contains 100 watt electrical filament inside it for heating. The other relevant data are as follows- Internal and external radius of the sphere = 0.24 and 0.32 m respectively.
Develop a two-dimensional addressing system using a 6-to-64 decoder, a 64-word×128- bit matrix, and 16-input multiplexers. How many gates would such a system require?
Determine the hysteresis and eddy-current losses separately at both frequencies.
List the formulas of three soluble bromide salts and three insoluble bromide salts. Do the same exercise for sulfate salts, hydroxide salts, and phosphate salts (list three soluble salts and three insoluble salts).
Large blooms of algae result from high nutrient loading in rivers and lakes, for example, as a result of runoff of fertilizers from agricultural fields.
Does the total-product-of-labor function TP^1(1) = 32^2exhibit decreasing (marginal) returns to the fixed factor k? Why or why not?
A two-pole, three-phase synchronous generator has a balanced three-phase winding with 15 turns per phase. If the three-phase currents are given by ia = 100 cos 377t, ib = 100 cos(377t - 120°), and ic = 100 cos(377t - 240°)
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