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Three single-phase, 10-kVA, 2400/120-V, 60- Hz transformers are connected to form a three phase, 4160/208-V transformer bank. Each of the single-phase transformers has an equivalent series impedance of 10 + j25 Ω referred to the high-voltage side. The transformer bank is said to deliver 27 kW at 208 V and 0.9 power factor leading.
(a) Draw a schematic diagram of transformer connections, and develop a per-phase equivalent circuit.
(b) Determine the primary current, primary voltage, and power factor.
(c) Compute the voltage regulation.
What are the units commonly used in occupational exposure limits for quantifying the concentration of dust particles, vapours or gases and fibres? What does LD 50 mean in Industrial Toxicology
Material which can endures vibrations and saline conditions
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Construction will take two years, and the capital will be paid in two equal increments, at the end of the first and second years. The savings (income) can be taken as paid at the end of each year. Production will start on the completion of constru..
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A solution that contains nitromethane in acetonitrile is heated at constant pressure of 1 bar until the first bubble appears. If the temperature at this point is 85 °C, what is the composition of the original solution?
For a gas flow rate of 100,000 m3 /h, at the reactor conditions, determine how many cyclones operating in parallel are needed and design a suitable cyclone. Estimate the size distribution of the particles entering the filters.
Show calculation details, explanation of assumptions and design constraints for one parallel cyclone configuration, oneseries cyclone configurationand the ESP only.
A 1-liter container of nitrogen gas (N2) at a temperature of 23c is intially at a pressure of 1.25 atm. because of a slow leak the pressure falls to 1.15 atm 1 hour later what is the leak rate in molecules/second?
Cite the indices of the direction that results from the intersection of each of the following pair of planes within a cubic crystal:
Risk Analysis and Management: Earthquake - An example of Fragility and Load, The fully formated problem is with the solution.
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