Single-Phase and Three-Phase Autotransformers
Power up to 3,000KVA
They are generally used when it is necessary to adapt the mains voltage to the nominal voltage value of a load, be it a motor or a machine, and in any case in cases where, either due to the type of use or for installation standards, galvanic separation between primary and secondary is not required. The use of an autotransformer instead of a transformer of equal power is more convenient, the lower the voltage difference between input and output.
Braga Trasformatori also manufactures autotransformers for motor starting.
Technical characteristics | Value |
---|---|
Reference standards | IEC 61558-1 , IEC 61558-2-13 |
Thermal insulation class | F, H (depending on construction) |
Protection degree | IP00 |
Suitable for installation up to | IP23 (IP54 on request) |
Dielectric strength test | According to standards |
Frequency | 50-60Hz |
Connections | Terminal block |
Terminals | Non-flammable Nylon |
Three-phase autotransformers are built in vertical or horizontal core construction, therefore suitable for floor or wall mounting, being equipped with robust steel angles.
Vertical floor version


Horizontal wall version

