Maintenance workshop:

• Full gasket replacement
• Full rewinding of types of windings
• Upgrade of core
• Replacement of all protective relays
• Complete oil treatment
• Complete tap changer overhaul:
   - MR, all models
   - ASEA/ABB, all models
   - NI (san), all models
•  DGA, DP-value, Furan analysis 
•  Overall cleaning
•  Complete testing (IEC, ANSI/IEEE)