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kimberly -guila

kimberly -.

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4. Se tiene un transformador reductor de 230 000/34 500 V, 30 MVA, impedancia de cortocircuito= 10.93%, el cual tiene un cambiador de derivaciones bajo carga que consta de 25 posiciones. Se tiene que el voltaje del lado de alta tensión normalmente tiene un valor de 225 688 V. Si el voltaje máximo permitido del lado de 34 500 V es 36 225 V y el mínimo permitido es 32 775 V, determine la posición máxima y la posición mínima en que puede estar el cambiador sin violar los límites permitidos. Justifique claramente su respuesta. (10 Pts.) Posición 1 241 500/34 500 V Posición 9 230 000/34 500 V (tap nominal) Posición 25 207 000/34 500 V Se adjunta tabla completa con las posiciones del cambiador en la siguiente página. | Posición | Voltaje primario (V) | |---|---| | 1 | 241500.0 | | 2 | 240062.5 | | 3 | 238625.0 | | 4 | 237187.5 | | 5 | 235750.0 | | 6 | 234312.5 | | 7 | 232875.0 | | 8 | 231437.5 | | 9 | 230000.0 | | 10 | 228562.5 | | 11 | 227125.0 | | 12 | 225687.5 | | 13 | 224250.0 | | 14 | 222812.5 | | 15 | 221375.0 | | 16 | 219937.5 | | 17 | 218500.0 | | 18 | 217062.5 | | 19 | 215625.0 | | 20 | 214187.5 | | 21 | 212750.0 | | 22 | 211312.5 | | 23 | 209875.0 | | 24 | 208437.5 | | 25 | 207000.0 |

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4.17 제트 엔진에서 1000K,200kPa 의 공기가 40(m)/(s) 로 노즐로 들어간다(그림 P4.17). 공기가 500(m)/(s),90 kPa 로 배출될 때 출구 온도를 구하라. 열손실은 없다고 가정한다.

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network cabling installer is inspecting existing cabling in an older building on behalf of a local ISP. The cabling connects several branches of 10BASE-T Ethernet to a newer 100BASE-TX trunk. What protocol does the Fast Ethernet standard use that encodes service capabilities into a 16-bit data packet broadcast that allows legacy hosts to choose the highest available connection settings, thus enabling compatibility between the 100BASE-TX and the legacy 10BASE-T?

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During the primary stage of syphilis, what is the main sign/symptom? O Neurological disturbances O Appearance of a chancre O Full-body red or brownish rash O Hair loss

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The rise of the modern factory system in England during the late eighteenth and early nineteenth centuries is known as the a. Wealth of Nations. b. Dark Ages. c. Industrial Revolution. d. Great Migration.

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What are some factors that have contributed to the spread of t cholera with examples? (NOT HOW THE DISEASE IS TRANSMITTED)

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4. Using the bond demand and supply model to answer the following questions: Why and how do expected interest rate affect demand of bonds?

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Catalina just took her first exam in PSC 151 and received a B. Catalina then finds out that her friend, Laura, earned an A on the exam. Catalina starts to think about herself in reference to Laura. In other words, Catalina is engaging in ___________ which will help Catalina ________________. upward social comparison; do better on future exams downward social comparison; feel better about her score downward social comparison; do better on future exams upward social comparison; feel better about her score

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The text appears to be free of spelling, typographical, grammatical, OCR, and mathematical errors.

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We have the following option-free bonds, which we assume are accurately priced: Maturity Bond equivalent yield Market Value 6 months 3.80% $100 1 year 4.10% $100 18 months 4.50% $100 2 years 5.00% $100 Find the three implied forward 6-month interest rates (1f1 – 1f3) bond equivalent yield (make sure your answer is an annualized 6-month rate). IMPLIED FORWARD RATE 1F1 1F2 1F3

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