None A- what information can be obtained from the open-circuit test.B- the instrument readings obtained from open and short-circuit tests on 10KVA, 450/120V,SOHZ transformer are:O.C. test: V = 120V; I=4.2A; W- 80W; W, and I, were read on the low-voltage side.S.C. test: V, = 8.5V; I = 18A; W, 100W with low voltage winding short-circuited compute:1- the equivalent circuit constants referred to high voltage side.2- efficiency and voltage regulation for full-load at 0.8 P.F. lagging.3- the voltage to be applied to the high voltage side on full-load at 0.8 power factor lag when thesecondary load voltage is 120V.4- if the transformer terminals are short circuited accidently when working at normal voltage;calculate the approximate value of the short circuit current in secondary winding.5- calculate the maximum regulation at full-load.

Note: As per our rule we’ll answer the first question since the exact one wasn’t specified. Please…

Answered: A- what information can be obtained…

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A- what information can be obtained from the open-circuit test. B- the in nstnume

Introductory Circuit Analysis (13th Edition)

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ISBN:9780133923605

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Question

None

A- what information can be obtained from the open-circuit test.
B- the instrument readings obtained from open and short-circuit tests on 10KVA, 450/120V,
SOHZ transformer are:
O.C. test: V = 120V; I=4.2A; W- 80W; W, and I, were read on the low-voltage side.
S.C. test: V, = 8.5V; I = 18A; W, 100W with low voltage winding short-circuited compute:
1- the equivalent circuit constants referred to high voltage side.
2- efficiency and voltage regulation for full-load at 0.8 P.F. lagging.
3- the voltage to be applied to the high voltage side on full-load at 0.8 power factor lag when the
secondary load voltage is 120V.
4- if the transformer terminals are short circuited accidently when working at normal voltage;
calculate the approximate value of the short circuit current in secondary winding.
5- calculate the maximum regulation at full-load.

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