06 Transformer

06 Transformer - Transformer UCF UCF Introduction to...

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Transformer
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CF Introduction to Transformer  UCF Transformer: A device that changes AC electric power at one voltage level to ac electric power at another voltage level through the action of a magnetic field. Shell-form transformer
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CF Introduction to Transformer  UCF ore- rm Core form Shell-form
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CF Introduction to Transformer  UCF ore- rm Concentric layered winding Vertical layered winding Core form Shell-form
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CF Ideal Transformer (1) UCF Assumptions: ) 1 ( r loss core no (3) loss winding no (2) leakage no (4) p N n Turns ratio: s N
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CF Ideal Transformer (2) UCF Voltage relationship: t d N v t d N v s s p p , n N v dt dt p p N v s s Current relationship: r since 0 core R i i N i N s s p p n N N i p s s p 1
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CF Ideal Transformer (3) UCF Impedance relationship: i v Z i v Z s load p in 2 2 N i v Z p s p in s p n N i v Z s p s load Power relationship: i v P i v P s s s p p p 1 1 n n i i v v P P s p s p s p
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CF Ideal Transformer (4) UCF Dot convention: Put a dot on positive terminal of v p or v s
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CF Procedure to Solve a Problem with Ideal Transformer (1) UCF Impedance transformation from back to front Circuit analysis at the front Work from front to back
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CF Procedure to Solve a Problem with Ideal Transformer (2) UCF
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06 Transformer - Transformer UCF UCF Introduction to...

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