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A four-pole dc machine with 728 active conductors and 30 m Wb flux per pole runs at 1800 r/min.(a) If the armature winding is lap wound, find the voltage induced in the armature, given that the number of parallel paths is equal to the number of poles for lap windings.
(b) If the armature is wave wound, calculate the voltage induced in the armature, given that the number of parallel paths is equal to 2 for wave windings.
(c) If the lap-wound armature is designed to carry a maximum line current of 100 A, compute the maximum electromagnetic power and torque developed by the machine.
(d) If the armature were to be reconnected as wave wound, while limiting per-path current to the same maximum as in part (c), will either the maximum developed power or the torque be changed from that obtained in part (c)?
What is the best solvent to seperate phosphoric acid from aqueous calcium chloride solution
Problem 1 Provider JCN Bell Comtron Choose? No. of problems 50 100 250 MTBF (hours) Mean Time to Reach Customer Mean Time to Fix Problem 3 2 1 2 1 0.5 System Availability Problem
Focus Question: How does the volume of mole of methane gas at 300 bar and 298K compare to the volume of one mole of an ideal gas at 300 bar and 298K?
Hydrogen gas at a pressure of 1.25 bar is contained in a thick-walled neoprene rubber sphere which has inner and outer radii of 70 mm and 80 mm, respectively.
Derive an expression for Concentration of substrate versus the length of the packed bed reactor as a function - determine the Vm" (mol/m2s) value necessary to convert 80% of the substrate to product in the reactor.
Develop project plans for the design and construction of the following processes. Use Figure 1.2 as a guide to the activities that must occur. Estimate the overall time required from launching the project to the start of operation.
Problem Statement: Derive the equation for S* for competitive product inhibiton. Definition of variables:
Write down a balanced chemical equation for the polymerization and Name the polymer formed by this polymerization.
Terephthalic Acid. (TPA) is produced by the reaction of p-Xylene. ,(PX) and Oxygen in the presence of a catalyst and solvent (S): Process conditions are provided for the Air entering the reactor and the reactor off gas.
Develop the designed circuit using breadboard in the laboratory and discuss the effect of resistors on calibration of the sensor with specific emphasis on the sensitivity of the instrument.
The line is commercial steel pipe, 25 mm internal diameter, length 120 m. The properties of the fluid are: viscosity 0.99 mNm-2 s, density 998 kg/m3. Calculate the total pressure drop due to friction when the flow rate is 3500 kg/h
Hello Skgupta. I have a last assignment in Operations Management. I am kindly asking for help. I have attached the problems in a word doc. I will also attach an Excel spreadsheet that will help with the problems. Thnak You! Problems* *Use spreadsh..
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