Low voltage transformers and autotransformers

Brascoelma started manufacturing transformers and autotransformers since 1977. Manufactures dry power transformers or insulating oil up to 2.5 KV voltage class.

The main constructive characteristics of Brascoelma transformers are:

• Inductive coils made with conductors of electrolytic copper or aluminum of high purity, coated with fiberglass tapes and subsequent impregnation in class F or H varnish or epoxy resins. The coils are subsequently immersed in insulating varnish with high dielectric and protective power, always presenting low losses and unlimited durability within their temperature class.
• Magnetic core assembled with grain oriented silicon steel sheets, thickness 0.30 or 0.27 mm, minimizing losses and increasing the life of the transformer.
• Fixing fittings painted with background paint and anti-corrosive finish.
• Protective enclosures (when requested by the customer) made of steel sheets suitable for the project and painted with background paint and anti-corrosion finish. The usual types of protection are: IP 00 (open transformers), IP 21 (metal box with natural ventilation for sheltered installation). IP-54 or IP 65 (external installation).
• Manufacturing and testing standards according to NBR-ABNT, especially NBR 10295 and NBR 5356.
• Special transformers for non-linear and harmonic loads (FACTOR K).

Brascoelma transformers have superior performance in powering:

• UPS´s (UPS) and computers;
• Radio frequency controls;
• Laboratory equipment;
• Industrial furnaces.
• Lighting systems;

In this line we also manufacture:

• Autotransformers for powering electric ovens, motors, etc.
• Special reactors and inductors.

The power ranges of transformers manufactured by Brascoelma are as follows: