Transformers Operation (b) Flashcards by Colton Becker | Brainscape

Q

VA In =

A

VA out

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Q

Percent voltage regulation =

A

no load - full load / full load. x100

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Q

Copper losses formula

A

kVa / Voltage = I

I squared(2) x R

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Q

Power efficiency

A

Power out / Power in x100

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Q

Power (W) Formula

A

VA x PF

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Q

Percent impedance. (%IZ) formula

A

Impedance voltage / Primary Rated voltage x100

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Q

Impedance voltage =

A

Primary rated voltage x %IZ / 100

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Q

Maximum Available Short circuit current formula

A

Full-load secondary current / %IZ

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