Large high-power transformers are cooled with fans as well as oil. This prevents damage due to overheating. ebm-papst has developed fans specifically designed for this application that satisfy rigorous requirements for service life and salt spray resistance. Electronically commutated (EC) technology ensures that ‘hot spots’ on the heat exchanger can be prevented.
The transformer fans satisfy all large transformer cooling requirements, are available in sizes ranging from 500 mm to 1,250 mm, and have an air performance of up to 13 m3/s. The special transformer fans satisfy all requirements according to DIN EN 50216-12, and are also suitable for use in high salt content coastal areas.