Exam Feb 2006 ΘΕΜΑ2

Exam Feb 2006...

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Unformatted text preview: arg Z ( ) 63.4 deg = B Z 0.061059151904 0.000639433318j + = B Z 0.0610625 = arg B Z ⎛ ⎝ ⎞ ⎠ 0.6deg = A 0.97694643 0.01023093j + = B 21.91855734 44.93970231j + Ω = C 0.00000349 − 0.00099999j + S = D 0.97694643 0.01023093j + = A 0.977 = arg A ( ) 0.6deg = B 50 Ω = arg B ( ) 64 deg = C 0.001 S = arg C ( ) 90.2 deg = D 0.977 = arg D ( ) 0.6deg = Ερώτη μ α ( α ) E S 150 kV ( ) ⋅ e j 0 ⋅ ⋅ 3 := E S 86.60254038 kV = (phase voltage) MVA 1000kW := MW MVA := MVAr MVA := f 5 H z ⋅ := ω 2 π f := ω 314.15926536 Hz = MVA 1000kW := MW MVA := MVAr MVA := f 5 H z ⋅ := ω 2 π f := ω 314.15926536 Hz = ΘΕΜΑ 2 ο ∆ίνεται γρα μμ ή μ εταφοράς , 50 Hz, μ ε γενικευ μ ένες σταθερές 0,977 0,6 o A D = = ∠ 50 64 o B = ∠ Ω 1 0,001 90,2 o C − = ∠ Ω Ζητούνται : α ) Η ανύψωση τάσης εν κενώ , όταν η τάση αναχώρησης είναι 150 kV. (10%) β ) Η τι μ ή της εγκάρσιας αντιστάθ μ ισης ώστε η ανύψωση της τάσης εν κενώ να γίνει μ ηδέν . (60%) γ ) Η τάση στην άφιξη της γρα μμ ής και η αντίστοιχη διακύ μ ανση...
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This note was uploaded on 10/02/2009 for the course G 001 taught by Professor Shmmygr during the Spring '07 term at National Technical University of Athens, Athens.

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Exam Feb 2006...

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