Single-Phase Transformer Working Principle

🔷 3. SINGLE-PHASE TRANSFORMER – WORKING Now we explain how it operates,

step by step. Step 1: Supply to Primary AC voltage is applied to the primary winding

Alternating current flows in primary Step 2: Production of Flux Primary current

produces alternating magnetic flux Flux flows through the laminated core Step 3: EMF Induction

The same flux links both windings According to Faraday’s law: EMF is induced in

primary EMF is induced in secondary Step 4: Secondary Output

When secondary is open: Voltage is present, no current flows When load is connected:

Secondary current flows Power is delivered to load Step 5: Voltage