: A master dashboard that consolidates all key design outcomes, such as KVA rating, efficiency, and temperature rise, for easy review and export. Essential Excel Features
): For standard silicon steel (stampings), this is usually between A safe assumption for small power transformers is 2. Core Sizing and Area Calculation transformer design calculation excel
help automate the selection of conductor sizes and core shapes. Current Rating (for 1-phase) or (for 3-phase). Conductor Area : Calculated using current density ( ), typically between 2.0 to 3.2 for natural cooling. Window Space Factor ( cap K sub w : A master dashboard that consolidates all key
| Parameter | Symbol | Example Value | Unit | |-----------|--------|---------------|------| | Primary voltage | Vp | 230 | V | | Secondary voltage | Vs | 12 | V | | Secondary current | Is | 5 | A | | Frequency | f | 50 | Hz | | Core center leg width | a | 2.5 | cm | | Core stack height | b | 3.8 | cm | | Max flux density | Bmax | 1.2 | Tesla | | Stacking factor | Sf | 0.92 | - | | Current density | J | 2.5 | A/mm² | | Regulation factor | Reg | 0.04 | - | Current Rating (for 1-phase) or (for 3-phase)