Engineering calculator
Transformer sizing
Indicative transformer rating from maximum demand, growth and loading margin.
Inputs
Results
- Required rating
- 1,083kVA
- Next standard size
- 1250kVA
S = P / PF × (1 + growth) / loading
Assumptions
- Standard sizes list is indicative
Limitations
- Excludes harmonic derating (K-factor), ambient, altitude and motor-starting
References: IEC 60076-7
Provided for general information. Gridlinks Solutions accepts no liability for decisions made using this calculator without independent engineering verification.
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