Natural air convection cooling is by far the most reliable cooling method known; it occurs through the movement of air caused by variations in its temperature.
In nature, as warm air decreases in density, it tends to rise, while cooler air naturally moves to occupy the lower air layers. The natural convective motions resulting from this thermal excursion facilitate the cooling of the electrical machine without the need for fans.
The alternative is forced cooling, which uses fans and is not without disadvantages.
The advantages of natural air convection cooling
- Absolute reliability, due to the absence of rotating parts subject to defined lifespan and failure;
- High silence, due to the absence of aerodynamic noise and friction;
- Greater cleanliness, due to the absence of dust being drawn into the equipment enclosure;
- No energy consumption related to the operation of the forced ventilation system;
- No additional maintenance costs for the periodic replacement of faulty or worn-out fans.
IREM and the Fans Free system for voltage stabilisers
All IREM voltage stabilisers in the MINISTAB and STEROSTAB series with an IP21 protection rating adopt the Fans Free system, using natural air convection as a cooling method.
This result has been achieved thanks to an in-depth design of the cabinets and the internal arrangement of the components, with optimisation of ventilation openings and other engineering solutions to ensure the correct airflow.
The in-house production of structures and enclosures has allowed IREM to implement this technology without the limitations of standard commercial cabinets.
Thanks to the Fans Free technology, IREM offers more reliable, efficient, and sustainable voltage stabilisers, meeting the needs of an industry increasingly focused on energy savings and reduced maintenance.
