Description
Grid-Scale Reliability | 33 kV – 1200 kV | 10 MVA – 1200+ MVA
📞 Contact: +254 707 122 122 | 🌐 shopstemaengineering.com
📐 ABB Power Transformer Technical Specifications
| Parameter | Details |
|---|---|
| Primary Voltage | 33 kV – 1200 kV |
| Secondary Voltage | Up to 765 kV |
| Power Rating | 10 MVA – 1200+ MVA |
| Cooling Types | ONAN, ONAF, OFAF, OFWF, ODWF |
| Core Construction | Step-lap, Cold Rolled Grain Oriented (CRGO) |
| Tap Changer | On-Load Tap Changer (OLTC) / Off-Load |
| Insulation Fluids | Mineral Oil, Natural Ester, Silicone Oil |
| Phase Configuration | 3-Phase or Single-Phase (custom) |
| Frequency | 50 / 60 Hz |
| Efficiency | >99.5% (EcoDesign Compliant) |
| Digital Monitoring | ABB TXpert™ Enabled |
| Standards | IEC 60076, IEEE, ANSI, GOST, GB |
🌟 Product Highlights
✅ Built for Grid-Scale Operation
Capable of operating continuously at high loads and voltage stresses, including harsh climate zones and fault scenarios.
🌐 ABB TXpert™ Ecosystem
Intelligent sensors embedded for:
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Temperature
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Load current
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Bushing condition
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Dissolved gas analysis (DGA)
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Remote diagnostics
⚙️ Low Loss, High Reliability
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Step-lap core to minimize no-load losses
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High-grade copper windings
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Advanced drying and oil treatment methods ensure long insulation life
🛡️ Full Protection Suite
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Buchholz relay
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Oil temperature & winding temp indicators
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Surge arresters
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Pressure relief devices
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On-load tap changer monitoring
🏭 Applications of ABB Power Transformers
| Sector | Use Case |
|---|---|
| Utilities | Transmission & distribution substations |
| Generation Plants | Generator Step-Up Transformers (GSU) |
| Renewables | Grid integration of wind and solar farms |
| Industrial Loads | Steel mills, mining, petrochemical complexes |
| HVDC Systems | Converter transformer interface |
| UHV Networks | 800 kV / 1200 kV interconnect substations |
🆚 Comparison Table: ABB Distribution vs Power Transformers
| Attribute | ABB Distribution Transformers | ABB Power Transformers |
|---|---|---|
| Voltage Range | Up to 36 kV | 33 kV – 1200 kV |
| Power Rating | 50 kVA – 10 MVA | 10 MVA – 1200+ MVA |
| Application | Local distribution / utility LV | National grid / bulk transmission |
| Tap Changer | Often Off-load | Mostly On-load (OLTC) |
| Digital Monitoring | Optional | Standard with TXpert™ |
| Installation | Pad-mounted or pole-mounted | Substation, skid-mounted |
🧰 Engineering & Configurable Options
| Component | Options Available |
|---|---|
| Core Type | Shell, Core-form (Step-lap laminated) |
| Tank Construction | Bell-type, welded, bolted |
| Bushings | Porcelain / Composite / SF₆ GIS-ready |
| Cooling | Radiators, Oil Pumps, Air/Water Heat Exchangers |
| Protection Devices | PRD, MOG, Buchholz, OTI, WTI, DGA |
| SCADA Integration | Modbus, IEC 61850, DNP3 compatible |
🔧 Typical Configurations
| Model | Power (MVA) | Voltage (kV) | Application |
|---|---|---|---|
| ABB TX GS400 | 250 MVA | 400/33 kV | GSU for thermal power plant |
| ABB TX Grid 765 | 500 MVA | 765/400/220 kV | National transmission grid |
| ABB TX Renew 220 | 120 MVA | 220/33 kV | Solar/wind farm interconnection |
| ABB TX Heavy 132/11 | 60 MVA | 132/11 kV | Heavy industrial facility |
✅ Certifications & Quality
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✔️ IEC 60076, ANSI C57, GOST-R Certified
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✔️ Factory Acceptance Tested (FAT) with full diagnostics
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✔️ ABB ISO 9001, ISO 14001, OHSAS 18001 factories
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✔️ Designed for 40+ years operational life
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✔️ EcoDesign Tier 2 compliance for energy savings
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✔️ KETRACO / KPLC / REA approved where required
🔧 Services from Shop Stema Engineering
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🧮 Transformer sizing, load-flow studies, and substation design
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🏗️ Logistics, crane delivery, and skid/platform mounting
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🧰 Installation, commissioning, and oil handling services
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🔍 DGA testing, SFRA, and thermographic inspections
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🔄 OLTC repair and spare part supply
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🧾 Technical documentation and tender support
📞 Request a Quote or Technical Consultation
Looking for ABB high-voltage power transformers for your grid, plant, or renewable project?
📞 Call/WhatsApp: +254 707 122 122
📧 Email: info@stemaengineering.com
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