typing clear i will upvotes A 3-phase transformer has a nameplate rating of 30YMVA, 230-3000YkV with 10% leakage reactance and the69transformer connection is wye - wye. Select a base of 30MVA and 230kV on the high - voltage side anddetermine the transformer reactance referred to thehigh-voltage side in ohms. Select one: a. 1763.332 b176.332 c. 15.87 d. 158.72A 3-phase transformer has a nameplate rating of 30 MVA, 230Y/69Y KV with 10% leakagereactance and the transformer connection is wye-wye. Select a base of 30 MVA and 230 kV on thehigh-voltage side and determine the transformer reactance referred to the high-voltage side inohms.Select one:Oa. 1763.33 NOb. 176.33Oc. 15.87Od. 158.7

To find the transformer reactance referred to the High voltage side, we need to calculate the base…

Answered: A 3-phase transformer has a nameplate…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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28. A local contractor manufactures the speakers used in telephones. The phone com- pany requires the speakers to ring at a specified noise level (in decibels). An X chart is being designed to monitor this variable. The process of sampling speakers from the line requires hitting the speakers with a fixed-force clapper and measur- ing the decibel level on a meter designed for that purpose. The cost of sampling is $1.25 per speaker. When the process goes out of control, the thickness of the speakers is incorrect. The cost of searching for an assignable cause is estimated to be $50. The cost of operating the process in an out-of-control state is estimated to be $180 per hour. Out of control corresponds to a shift of 2ơ in the decibel level, and the probability that the process shifts out of control in any hour is .03. a. The company uses an X chart based on 3ơ limits and subgroups of size 4. What is its hourly cost? b. What are the optimal values of n and k for this process and the…
Find the discharge coefficient, threshold heat flux, combustion efficiency and emissivity factor for both propane and butane separetly. The pipe which would contain thesge gases is 30 inches in diameter and has an operating pressure of 1000psig.
You are a food specialist in a company that specializes inrefrigerated delicacies, and one of your brands requires beingmaintained at a temperature of 5°C. You determine averagewater activity (aw) at this temperature to be 0.2. One day, you are informed that the cooling systems onone of the delivery trucks carrying your company’s productsmalfunctioned while en route to its destination and it would notbe fixed until the next delivery. The driver has informed you thatthe temperature in the delivery bay of the truck is averaging55°C. You estimate a heat of sorption (Q) of 19 kJ/mol. Calculate the water activity of the brand at this elevatedtemperature and comment on it’s integrity. Should the deliverystill push through? Or should the products be recalled anddisposed
You are the Green Belt Industrial Engineer in charge of manufacturing process for batteries that have an average voltage output of 12 volts, with production assumed to be normally distributed. You have decided that if a sample of 21 batteries taken from production has a sample average of 11 and sample standard deviation of 1.23, then the production is declared out of control and the line is stopped What is the confidence that your decision is a proper one to take?
A part at Belleh Fontem Manufacturing requiresholes of size .5 ± 0.0 I inches. The drill bit has a s tated size of.5 ± 0.005 inches and wears at the rate of .00017 inches perhole drilled. Give the most and least number of holes that can bedrilled with one drill bit before it has to be replaced.
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A single sampling inspection scheme for large lot of mass-produced flanges states:From each lot take and inspect a random sample of 50. If 3 or more defectives, inspect the whole lot and remove all defectives, if less than 3 are found accept the lot without further inspection.a. Obtain the equation for Pa the probability that a lot containing a fraction p of defectives will be accepted, in terms of p.b. Evaluate Pa for p=0.01, 0.02, 0.03, 0.05, 0.07, 0.10, 0.15, 0.20, 0.30. Plotthe operating characteristics and average outgoing quality curve.c. Estimate: (a) the producer’s Risk at p of 2% (b) the consumer’s Risk for pof 5%.
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