Power Transformers

Function: Transfer electrical energy between circuits via electromagnetic induction, stepping up or down AC voltage levels.

Key Parameters:

• Primary/Secondary Voltage: Input and output voltages
• Power Rating (VA/kVA): Maximum load capacity
• Frequency: Typically 50/60 Hz for mains applications
• Isolation: Galvanic isolation between windings
• Efficiency: High (>95%) in modern units

Types:

• Distribution Transformers
• Isolation Transformers
• Autotransformers (non-isolated)
• Toroidal Transformers

Applications: Power supplies, grid distribution, industrial equipment, HVAC systems.