Flashcards : Electrical Power Transformers and Machines — 10 cartes

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1Question

Transformer — principle?

Réponse

Operates on mutual induction between coils.

2Question

Transformer — primary function?

Réponse

Transfer electrical energy via electromagnetic induction.

3Question

Transformer losses — main?

Réponse

Iron (core) and copper (winding) losses.

4Question

Mutual Induction — role?

Réponse

Induces voltage in secondary coil.

5Question

Slip — in induction motor?

Réponse

Difference between synchronous and rotor speed.

6Question

Self Induction — difference from mutual?

Réponse

Induction caused by own changing current.

7Question

Core Material — purpose?

Réponse

Reduces eddy current losses.

8Question

Iron Loss — components?

Réponse

Hysteresis and eddy current losses.

9Question

Efficiency — maximized when?

Réponse

Copper loss equals iron loss.

10Question

Transformer — AC or DC?

Réponse

Only works with AC.

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1. What is mutual induction in the context of transformer principles?

2. What is the fundamental principle that allows transformers to transfer electrical energy between circuits?

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