Since 1969, the year Ortea Next was founded, transformers have been our strong point. The design and production knowledge and experience gained over the years allow us to offer high-quality, optimized, and reliable products.
The flexibility and adaptability of the Ortea Next organization, ensure the development in short time frames of solutions designed beginning from the customer’s technical specifications, ensuring high levels of quality that distinguish our standard production.
To ensure both quality control and the full synergy between resources involved, all the design and production activities are carried out at our headquarters in Cavenago di Brianza.
The production of transformers is carried out with copper or aluminium windings, depending on the rated power, the economic optimisation of the project, or the customer’s specific request. The magnetic core is produced with thin sheet metal to reduce losses.
The material used for the main insulation towards the core and for the inner insulation of windings is selected according to the required insulation class. The solidly built winding, locked by plates and rods, is then impregnated with environment-friendly polyester resin. The impregnation and subsequent oven polymerisation processes consolidate the winding and achieve the required insulation class.
The specific request aspects needed for design include:
The transformers can be in an open configuration (IP00) or housed in a metal enclosure with a standard protection rating of IP21. Higher protection ratings can be achieved on request. The transformers are typically designed for indoor installation, but housings suitable for outdoor installation can be provided upon request.
A three-phase transformer is designed to transform an input voltage into the required single-phase or three-phase output voltage.
To select the correct type of transformer you need to determine:
The total load is often a combination of individual single-phase and three-phase loads (e.g. lights, heaters, motors, etc.). You need to know the active power, power factor, unbalance, etc. of each load. The total load must be evaluated taking into account the appropriate usage and contemporaneity factors. The transformer chosen must have a kVA value equal to or greater than the required load, also taking into account any unbalance.