Three-Phase Transformers for general use
Power up to 50KVA, higher power on request
These transformers are custom-built with characteristics and primary and secondary voltage values indicated from time to time by individual customers. All transformers are impregnated with anti-mold insulating varnishes, an operation that makes them suitable for operation in very humid environments, also improving thermal dissipation and electrical insulation.
The transformers listed here are of the ‘short-circuit resistant not by construction’ type and unless otherwise specified by the Customer do not incorporate protective fuses. Therefore, given that the standards prescribe that these transformers must be protected from overloads, it is recommended to insert fuses on the secondary circuit that have characteristics and nominal value in accordance with what is specified on the nameplate of each transformer. When the sizing power requires it, between the windings of the transformers there are ventilation air channels, in front-only or on all 4 sides of the coils version, which in addition to favoring heat dissipation, improve insulation and determine a reduction in short-circuit current, a non-negligible element when the transformer is inserted in circuits with electronic devices. These transformers are manufactured in accordance with the IEC 61558 standard, therefore all related subcategories are available, such as Separation, Isolation, Safety and medical use; they also comply with the IEC 60076 standard in the applicable parts.
| Technical characteristics | Separation Transformers | Isolation or Safety Transformers |
|---|---|---|
| Reference standards | IEC 61558-1, IEC 61558-2-1, IEC 61558-2-2 | IEC 61558-1, IEC 61558-2-2, IEC 61558-2-4, IEC 61558-2-6 |
| Thermal insulation class | F, H (depending on construction) | F, H (depending on construction) |
| Maximum ambient temperature | - | 40° C |
| Protection degree | IP00 | IP00 |
| Suitable for installation up to | IP23 | IP23 |
| Dielectric strength test | According to standards | According to standards |
| Frequency | 50-60Hz | 50-60Hz |
| Connections | Terminal block | Terminal block |
| Type of terminals | Non-flammable Nylon | Non-flammable Nylon |
They are built in vertical or horizontal core construction, therefore suitable for floor or wall mounting, being equipped with robust steel angles.
