📊 KATOY 3-Phase Transformers
A three-phase transformer is an electrical device designed to transfer electrical energy between three-phase power systems at different voltage levels. It is commonly used in power generation, transmission, and distribution to efficiently step up (increase) or step down (decrease) voltages.
Katoy can manufacturer 3-Phase Transformers to any specification required for your application.
🔧 Three-Phase Transformer Construction
There are two main configurations:
- Single Unit (Core Type or Shell Type)
- All three phases are built into one physical unit, sharing a magnetic core.
- Bank of Three Single-Phase Transformers
- Three individual single-phase transformers are connected together to form a three-phase system.
🔗 Common Connections:
- Primary and secondary windings of a three-phase transformer can be connected in:
- Delta (Δ)
- Wye (Y or Star)
- Typical combinations:
- Delta-Delta
- Delta-Wye
- Wye-Delta
- Wye-Wye
Each configuration affects:
- Line and phase voltages
- Load balancing
- Harmonics
- Grounding
🏭 Applications
- Power plants (step-up voltage for transmission)
- Substations (step-down voltage for distribution)
- Industrial facilities and large commercial buildings
- Electric motor loads
📊 Advantages
- Efficient power transmission over long distances
- Smaller conductor size for the same power
- Better for heavy, balanced loads
