Braga Trasformatori s.r.l.

These transformers are built to order with power and voltage values for primary and secondary windings specified by the Client's needs. They are impregnated with anti-mold resin which makes them suitable for very humid environments. The transformers here listed are all classified non-short-circuit proof by construction, a protection can be provided as an option. The construction can be either with or without air channels between the windings; when the power size requires it, we place air channels between the windings (in frontal-only version or on 4 sides of the windings), which improve the heat dissipation and the inter-winding insulation. They can also be useful to reduce the Icc values, a key factor when the transformer is implemented in electronic devices. These transformers are built according to the IEC 61558 standard, therefore all its subcategories are available, as Separation, Insulation, Safety and Medical use type. The IEC 60076 standard is also supported in its applicable parts.

Electromagnets are used in the construction of vibrating bases (electromagnets for oscillating systems, industrial vibrators), they supply the movement used to move and correct the orientation of various items to feed automated lines of production. They can be used to build circular, conical or linear vibrating bases. All the electromagnets are encapsulated in epoxy resin and an aluminium case is available for a better fixing. Various sizes are available in our production line, our experience enables us nonetheless to produce custom constructions in order to suit other Client requests.

The most common application for this type of reactor consists in installation before rectifier circuits or more in general before electronic circuits such as electric drives and frequency converters. They are useful for limiting current spikes during the commutation transient, therefore protecting the electronic components such as transistors, SCRs, etc. The reactors are also important to reduce the harmonics content on the input line, with the added benefit of limiting the electromagnetic interferences towards other appliances connected to the same input line. Usually the commutation reactors in our production line are designed with a value of the short-circuit voltage not lower than 4%.

The transformers for the supply of electro-medical appliances are built according to the IEC 61558-2-4 standard for safety transformers. They have an electrostatic shield between primary and secondary winding and are protected against short-circuit and overload. These transformers are designed to keep leakage current below the values required by the IEC 60601-1 standard, which refers to electro-medical appliances.

These transformers are built on demand with power and voltage values for primary and secondary windings according to the Client’s needs. They are impregnated with anti-mold resin which makes them suitable for very humid environments, also improving thermal dissipation and electrical insulation. We employ top-quality materials, such as low loss magnetic steel or grain oriented in order to optimize output, a key factor for high power transformers. Our experience allows us to design and build power transformers suitable for most implementations and we are capable of adapting our manufacturing process to suit our Clients’ requests.