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Cast-resin transformers

Due to their electrical and physical properties, cast-resin transformers are used widely in the industrial and tertiary sectors.
Compliant cast-resin transformers up to 2500 kVA readily available from stock.
Optional application of a forced ventilation system for more efficient dissipation of the heat produced.
Acceptance tests are carried out in our test room in accordance with CEI EN standards.

Oil transformers

An oil transformer is an alternative to a cast-resin transformer given its ruggedness and the fact that it can adapt to any environmental conditions.
Compliant cast-resin transformers up to 2500 kVA readily available from stock.
Acceptance tests are carried out in our test room in accordance with CEI EN standards.
Oil transformer overhaul service, including collection from the customer using our own vehicles.

Oil treatment

Oil treatment of transformers using:

  • a 1500 l/h container-type vacuum filter press machine for high-voltage substation transformers
  • a 3000 l/h mobile vacuum filter press machine for high-voltage substation transformers
  • a 300 l/h transportable vacuum filter press machine, for medium-voltage substation transformers

This treatment serves to filter out any impurities or foreign bodies, remove dissolved gases and eliminate water suspensions or solutions from the oil in order to obtain the dielectric strength required by the standards.
A soundproof power generator is used as an aid for oil treatment.

Tests on oil samples:

  • chemical analysis to detect the presence of PCB
  • dielectric test to measure the insulation level