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)