Transformer Maintenance Services Transformer Seal Packing Replacement Services 1 Set This 1 Set Packing Replacement consists of 5 Seal Packing Replacements namely: 1. Primary Seal Packing 2. Secondary Seal Packing 3. Deck Seal Packing 4. Tap Changer Seal Packing 5. DGPT Seal Packing (Protection) Why should the Seal Packing be replaced? For this location, it is because the Old Seal Packing has experienced seepage/oil leaks in the Transformer This should not be allowed because it can damage the transformer and interfere with the