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### HW 04

Course: EE ee, Spring 2010
School: Istanbul Technical...
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Word Count: 950

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4 ELEN3441FundamentalsofPowerEngineering Spring2011 Homework Solutions 4.1. (25 pt.) a) At no-load conditions, EA = VT = 240 V. The field current is given by VT 240 IF = = = 0.96 A Radj + RF 175 + 75 From Figure 5-1, this field current would produce an internal generated voltage EAo of 277 V at a speed no of 1200 r/min. Therefore, the speed n with a voltage of 240 V would be En EA 240 1200 n = n= A 0 = =...

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Istanbul Technical University - EE - ee
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ELEN3441FundamentalsofPowerEngineeringSpring2011Homework 6 Solutions6.1. (15 pt.) The speed of a synchronous machine is related to its frequency by the equation120 f enm =PTo make a 50 Hz and a 60 Hz machine have the same mechanical speed so that
Istanbul Technical University - EE - ee
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Istanbul Technical University - EE - ee
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Istanbul Technical University - EE - ee
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Istanbul Technical University - EE - ee
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Istanbul Technical University - EE - ee
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Istanbul Technical University - EE - ee
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Istanbul Technical University - EE - ee
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Istanbul Technical University - EE - ee
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Istanbul Technical University - EE - ee
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Istanbul Technical University - EE - ee
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Istanbul Technical University - EE - ee
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S.F. State - FIN - 353
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S.F. State - FIN - 353
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S.F. State - FIN - 353
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S.F. State - FIN - 353
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S.F. State - MKTG - 431
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S.F. State - MKTG - 431
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S.F. State - MKTG - 431
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S.F. State - MKTG - 431
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S.F. State - MKTG - 431
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S.F. State - MKTG - 431
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S.F. State - MKTG - 431
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S.F. State - MKTG - 431
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S.F. State - MKTG - 431
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