Tri-single-phase transformers
Tri-single-phase transformers, also known as 3 phase to 1 phase transformers and enable the connection of single-phase loads to three-phase lines even without a neutral conductor, ensuring better load distribution across the phases.
Thanks to galvanic isolation between primary and secondary windings, they provide high electrical safety and protection from electrical disturbances. Ideal for industrial applications, automation systems, and installations requiring single-phase power supply from three-phase networks.
Available in standard versions and custom configurations upon customer request.
Advantages
- Connection of single-phase loads to three-phase networks without neutral conductor
- Balanced load distribution across phases
- Galvanic isolation between primary and secondary windings
- Protection from conducted electrical disturbances
- Duty: Continuous (S1)
- Frequency: 50/60 Hz
- Protection: Class I (direct and indirect contact)
- Enclosure protection rating: IP00
- Terminal protection rating: IP20
- Ambient temperature: -10°C / +40°C
- Thermal insulation class: Class B (130°C) / Class F (155°C)
Fields of Application (General Overview)
Tri-single-phase transformers are used in automation systems to supply power to PLCs, controllers, sensors, and operator interface devices that require single-phase power. In many industrial facilities, the distribution network is three-phase without a neutral conductor, making tri-monophase transformers essential. The galvanic isolation provided by the transformer protects electronics from conducted disturbances originating from the main electrical network.
In CNC machine tools and machining centers, tri-monophase transformers supply single-phase power to auxiliary components such as cooling systems, lighting, operator panels, and control systems. While the drive section uses three-phase power, these components require single-phase voltage, ensuring balanced load distribution across the three phases
In the chemical, pharmaceutical, food processing, and water treatment sectors, tri-monophase transformers supply power to dosing pumps, agitators, control systems, and process instrumentation operating on single-phase power. Balanced load distribution across phases improves overall plant energy efficiency.