Cooling systems protect the transformer from accelerated aging by lowering the operating temperature and therefore avoids insulation disruptions leading to transformer failure.
The effect of a malfunctioning cooling system could cause significant disruptions to the availability of the transformer as well as the remaining life. By upgrading the cooling capacity capital optimization could also be achieved by increasing the rated capacity of the transformer. A well functioned cooling system requires regular maintenance and depending on the type, the life expectancy of the cooling devices can be much shorter than the transformer active part and tank.
Cooling system replacement/upgrades
The need to replacement or upgrade the cooling system can emerge from a verity of situations, such as old age, “wear and tear”, move of transformer, adaptation to new design technology. Upgrades of cooling systems enable an increase in loading capacity of the transformer.
Replacement: One-to-One replacement
Single tube to double tube
Oil/water to oil/air
Upgrades of existing cooling solution: From original size to large size