A 3 – Phase transformer rated for 33 kV/ 11kV is connected in delta/star as shown in figure. The current transformers (CTs) on low land high voltage sides have a ratio of 500/5. Find the current ${i_1}$ and ${i_2}$, of the fault current is 300 A as shown in figure

Question

A 3 – Phase transformer rated for 33 kV/ 11kV is connected in delta/star as shown in figure. The current transformers (CTs) on low land high voltage sides have a ratio of 500/5. Find the current ${i_1}$ and ${i_2}$, of the fault current is 300 A as shown in figure

TuteeHUB · Accepted Answer

${i_1} = 0A$, ${i_2} = 0A$

TuteeHUB · Answer

${i_1} = \frac{1}{{\sqrt 3 A}},{i_2} = 0A$

TuteeHUB · Answer

${i_1} = 0A,{i_2} = \frac{1}{{\sqrt 3 A}}$

TuteeHUB · Answer

${i_1} = \frac{1}{{\sqrt 3 A}},{i_2} = \frac{1}{{\sqrt 3 A}}$

1.	A 3 – Phase transformer rated for 33 kV/ 11kV is connected in delta/star as shown in figure. The current transformers (CTs) on low land high voltage sides have a ratio of 500/5. Find the current \({i_1}\) and \({i_2}\), of the fault current is 300 A as shown in figure
A.	\({i_1} = \frac{1}{{\sqrt 3 A}},{i_2} = 0A\)
B.	\({i_1} = 0A\), \({i_2} = 0A\)
C.	\({i_1} = 0A,{i_2} = \frac{1}{{\sqrt 3 A}}\)
D.	\({i_1} = \frac{1}{{\sqrt 3 A}},{i_2} = \frac{1}{{\sqrt 3 A}}\)
Answer» B. \({i_1} = 0A\), \({i_2} = 0A\)

A 3 – Phase transformer rated for 33 kV/ 11kV is connected in delta/star as shown in figure. The current transformers (CTs) on low land high voltage sides have a ratio of 500/5. Find the current \({i_1}\) and \({i_2}\), of the fault current is 300 A as shown in figure

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