Transformers for Rectifier Systems
Power range up to 1.000 KVA
The Transformers for rectifiers are built to supply power to the AC-DC conversion systems. Their usual application is found in galvanic, electrocolouring, anodizing and any other superficial treatment of metal parts where the conduction of electrical energy is needed.
Braga has been present in this industrial sector for more than fifty years; our experience allows us to design and build transformers that can be precisely adapted to the needs of our Clients.
These kind of transformers are built for a specific rectifier circuit, which usually is one of the following:
Double-wye connection without interphase transformer;
Double-wye connection with interphase transformer;
Bridge connection;
Half-bridge connection;
Double-Bridge connection with wye-delta secondary.
They are impregnated with anti-mould resin making them suitable for very humid environments while also improving dielectric resistance
The construction can be either with or without air channels between the windings, which improve heat dissipation and inter-winding insulation, they can also be useful to reduce Vcc values.
These transformers are built according to the IEC 61558, IEC 61378 and IEC 60076 standards, in their applicable parts.
When the transformer is built for a double-wye connection with interphase transformer, the latter item is usually part of the supply, and when needed we can also supply a dc inductor to level the ripple of the output current.
Technical Specifications:
- Standard: IEC 61558 , IEC 61378-1, IEC 60076 applicable parts
- Thermal insulation Class: F, H (based on construction)
- Typical ambient temperature: 40° C
- Protection degree: IP00
- Suitable for installation up to: IP23
- Dielectric rigidity test: according to IEC standard
- Frequency: 50-60Hz
- Nonflammable nylon screw terminal and/or metal bar connection
