## Layanan Trafo Service & Maintenance
Trafo distribusi adalah **critical asset** dengan replacement cost tinggi dan lead time panjang. Predictive maintenance trafo bisa memperpanjang umur dari 20 tahun menjadi 30+ tahun.
## Scope Layanan
### Dissolved Gas Analysis (DGA)
– Sampling minyak trafo
– Lab analysis 7 gas (Hydrogen, Methane, Ethane, Ethylene, Acetylene, CO, CO2)
– Interpretasi sesuai IEEE C57.104 & IEC 60599
– Duval Triangle analysis untuk identifikasi jenis fault
– Trending analysis dari history sampling
### Oil Treatment
– **Oil Purification** — Vacuum dehydration untuk reduksi moisture & gas terlarut
– **Oil Filtration** — Reduksi particle count
– **Oil Top-up** — Penambahan minyak baru sesuai spec
– **Oil Replacement** — Ganti minyak total bila degradasi parah
### Testing & Inspection
– Insulation Resistance (Megger)
– Tan Delta / Power Factor test
– Winding Resistance
– TTR (Turns Ratio Test)
– Bushing testing
– Tap-changer functional test
### Retrofit & Upgrade
– Replacement bushing
– Tap-changer overhaul
– Cooling system upgrade
– Monitoring sensor installation (temperature, gas-in-oil)
### Replacement
– Supply trafo distribusi baru (Trafindo, Mastergreen)
– Coordination removal old trafo
– Installation & commissioning
## Standar
IEEE C57.104, IEC 60599, IEEE C57.106, IEC 60156
## Cocok untuk
– 🏭 Pabrik manufaktur dengan beberapa trafo
– 🏢 Office tower & shopping mall
– 🏥 Hospital (trafo backup critical)
– 📡 Data center
– ⚡ Operator gardu distribusi
## Brand Partner
Trafindo, Mastergreen, Schneider, ABB
## Mengapa SEI Group
– ✅ On-site DGA capability
– ✅ Lab partner dengan akreditasi
– ✅ Engineer bersertifikasi
– ✅ Emergency replacement stock
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[Konsultasi Trafo Service →](/contact/)
