Power Transformer Calculator

How to use the calculator
Change your input MVA
Change your input kV
Automatic answer

Find primary Ampere
Given 28 MVA, 3 Phase rating and
69 kV Primary Voltage

3 Phase MVA Rating
÷
kV * 1.732
= Answer
Primary Ampere

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Find 3 Phase MVA rating
Given 234.3 primary Ampere and
69 kV primary voltage

primary Ampere
×
kV * 1.732 primary voltage
= MVA, Answer

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Find secondary Ampere
Given 28 MVA, 3 Phase rating and
12.47 kV Secondary Voltage

3 Phase MVA Rating
÷
kV * 1.732 secondary voltage
= Answer
Secondary Ampere

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Find 3 Phase MVA rating
Given 1296.4 secondary Ampere and
12.47 kV secondary voltage

Secondary Ampere
×
kV * 1.732 secondary voltage
= MVA, Answer

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Find tertiary Ampere
Given 3 MVA, 3 Phase rating and
34.5 kV tertiary voltage

3 Phase MVA Rating
÷
kV * 1.732 tertiary voltage
= Answer
Tertiary Ampere

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