Question
Asked Oct 24, 2019
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In order to meet an emergency
rans folmenspita 1,47o700
n Delta- We to prm a
uhiclh
TA dic
Calaulate
threa Shple-plase
are conneccte
turea-plase ronstormen
l21470 an Smissan ia
a
oad
60 AVA to a
Atnsgalwe upplieo lo0 MVA to a
eacu ticansormen
e primary ad Secendary
a) Tua tarn Catio fr
b The Gufees In t
te transfrmon
Wind
y Wiadiaes
ine arrets
Secendary tansmusson
cTe pimary aud
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In order to meet an emergency rans folmenspita 1,47o700 n Delta- We to prm a uhiclh TA dic Calaulate threa Shple-plase are conneccte turea-plase ronstormen l21470 an Smissan ia a oad 60 AVA to a Atnsgalwe upplieo lo0 MVA to a eacu ticansormen e primary ad Secendary a) Tua tarn Catio fr b The Gufees In t te transfrmon Wind y Wiadiaes ine arrets Secendary tansmusson cTe pimary aud

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Step 1

Step 1-

The circuit diagram is as follows-

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LOAD 6OMVA 19470 V -eRes ees uelr ReeT Leee

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Step 2

Part (a)-

Turn ratio for each transformer-

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(V) (V 7200 12470 -1.73 a

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Step 3

Part (b)-

Current in seco...

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(I) 3 (V,)3x3 (V,) 60x10 2777.78 A 3x 7200 Primary current- (I,)2 P a 2777.78 = 1605.65 A 1.73

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Electrical Engineering

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