Swift Heat is the sole manufacturer of Toroidal Transformers in South Africa.
Swift Heat has an extensive range of in-house manufactured toroidal power transformers. These transformers are widely used and preferred to the conventional laminated type in industries that require a greater level of efficiency such as in the medical; computer; telecom; renewable energy; lighting; power conditioning and similar markets.
The main advantage in using toroidals is achieved through the construction of the core which is wound in a tight round shape from a continuous strip of grade M4 grain-orientated silicon steel. This allows for a higher flux density with much lower eddy current and hysteresis losses resulting in extremely high electrical efficiencies (>90%) compared to the standard types.