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SINGLE-PHASE AND THREE-PHASE AUTOTRANSFORMERS

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 characteristicsValue
Reference standardsIEC 61558-1 , IEC 61558-2-13
Thermal insulation classF, H (depending on construction)
Protection degreeIP00
Suitable for installation up toIP23 (IP54 on request)
Dielectric strength testAccording to standards
Frequency50-60Hz
ConnectionsTerminal block
TerminalsNon-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
Vertical floor version
Horizontal wall version
Horizontal wall version