Step-Up Transformer Calculator

Calculate step-up transformer specifications including turns ratio, current ratings, core dimensions, wire gauge, and efficiency for various transformer applications.

Step-Up Transformer Principle

    Primary (Low V)    Core    Secondary (High V)
         ┌─────┐      ┌───┐      ┌─────┐
    Vp ──┤ Np  │      │ ⟂ │      │ Ns  ├── Vs
         │ ))) │      │ ⟂ │      │ ((( │
    Ip ──┤     │      │ ⟂ │      │     ├── Is
         └─────┘      └───┘      └─────┘
         
    Vs/Vp = Ns/Np = Turns Ratio (>1 for step-up)
    Ip/Is = Ns/Np (Current steps down)
    Power: Vp×Ip ≈ Vs×Is (minus losses)

Step-Up Characteristics:

Secondary voltage > Primary voltage
Secondary current < Primary current
Turns ratio > 1
Power remains approximately constant

Calculation Type

Basic Calculations Detailed Design

Basic Transformer Parameters

Primary Voltage (Low)

Secondary Voltage (High)

Power Rating

Frequency

About Step-Up Transformers

Step-up transformers increase voltage from primary to secondary while decreasing current proportionally. They are essential in power transmission and various industrial applications.

Key Characteristics:

Voltage Increase: Secondary voltage > Primary voltage
Current Decrease: Secondary current < Primary current
Power Conservation: Input power ≈ Output power (minus losses)
Turns Ratio: Greater than 1 for step-up operation

Applications:

Power transmission systems
Distribution substations
Industrial motor drives
High-voltage testing equipment

Design Considerations:

Proper core material selection for efficiency
Adequate insulation for high voltages
Thermal management and cooling
Protection against overcurrent and overvoltage