The lifespan of a dry-type transformer can be prolonged to as much as 25 years, provided the required services and maintenance is carried out in accordance with manufacturer specifications.
Type of Transformer | Type of Inspection and Frequency (months) | ||
Visual | Visual and Mechanical | Visual, Mechanical and Electrical | |
Dry type (rated power up to 1250kVA) | 2 | 12 | 36 |
Dry type (rated power above | 1 | 2 | 24 |
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