A hermetically sealed transformer is designed to operate without air
contact, preventing moisture ingress, oxidation, and sludge formation in the dielectric fluid.
By eliminating air exposure, these transformers significantly reduce maintenance needs and
extend operational life, making them an ideal solution for power distribution, chemical plants,
and hydroelectric applications. The sealed tank with corrugated fin walls provides optimal heat
dissipation, ensuring consistent performance under varying load conditions.
Manufactured in compliance with IEC 60076 standards, hermetically sealed transformers offer high
efficiency, enhanced insulation, and superior voltage regulation. With customized cooling
options (ONAN, ONAF, AN) and multiple vector group configurations (Dyn11, Dy11, YNd11), they
ensure reliable power transmission in challenging environments. These transformers are widely
used in chemical processing units, hydroelectric power stations, and industrial power grids,
where long-term stability, minimal maintenance, and high safety standards are essential.
| Specification | Details |
|---|---|
| Capacity | As per Customer Requirement |
| Primary Voltage | As per Customer Requirement |
| Frequency | 50Hz / 60Hz |
| Phase | Three Phase |
| Cooling | ONAN, ONAF, AN |
| Vector Group | Dyn11, Dy11, YNd11 etc. |
| Design Standards | IEC 60076 |
| Tapping | Off Circuit Tap changer or On load tap changer for remote/auto/parallel operation |
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