Electrical Engineering · Power Systems · Standards
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Excel calculators, PDF guides and reference templates for practising engineers. Enter your email once to unlock the full library.
PDFProtection Systems
IEC 61850 Substation SLD Template Pack
AutoCAD DWG templates for typical MV substation single line diagrams with IEC 61850 station/process bus annotations.
XLSXElectrical Design Standards
Transformer Sizing Worksheet with K-Factor
Interactive Excel model to size dry-type and oil-filled transformers with harmonic derating and ambient corrections.
PDFProtection Systems
Substation Fault Current Calculation Guide (PDF)
50-page white paper covering per-unit method, IEC 60909, motor contribution, and worked examples for 33/11 kV substations.
XLSXElectrical Design Standards
MV Cable Sizing Excel Calculator (IEC 60364)
Ready-to-use spreadsheet: enter load, length, and installation method — get sized cable with voltage drop and short-circuit check.