| Manufacturer | ABB |
|---|---|
| Model | 40/50 MVA, ONAN/ONAF |
| Year | 1994 |
| Location | Thailand
|
ABB Transformers Ltd (Thailand) oil-immersed power transformer, manufactured in 1994 and held as a plant spare unit. The transformer is rated at 40/50 MVA and uses ONAN/ONAF cooling, with radiator banks and forced-air cooling fans. Its primary voltage is 115 kV with a ±2 × 2.5% off-load tap changer, and its secondary voltage is 11.4 kV. It operates at 50 Hz, has a Dyn1 vector group, and an impedance of 9.55% at 40 MVA. The windings are copper.
Fittings include ABB bushings, a Buchholz relay, a pressure relief device, oil and winding temperature indicators, radiators with fans, and bushing current transformers. The configuration includes three high-voltage bushings mounted on top and an oil conservator tank. The stated total weight is approximately 63 tonnes; transport weight without oil is approximately 34 tonnes.
The oil is described as certified non-PCB, based on laboratory testing dated May 2026. Documentation includes the ABB rating plate, outline and foundation drawings, protection and current transformer wiring, and a factory test report. The original ABB nameplate is intact.
This spare transformer is suited to utility, substation, and heavy industrial applications, including 115 kV, 50 Hz networks. It is offered as-is, where-is. The buyer is responsible for arranging crane lifting and transport; the unit has previously been rigged and lifted by crane. Inspection is welcome by appointment. Full rating, voltage, impedance, weight, and year details are available on request.
The following description has been generated using artificial intelligence based on the product information available. It is provided for guidance only and may not reflect all specifications or conditions. Please contact us if you need precise or confirmed details.
Manufacturer: ABB Transformers Ltd, Thailand
Year of manufacture: 1994
Equipment type: Oil-immersed power transformer
Rated power: 40/50 MVA
Cooling: ONAN/ONAF, with radiator banks and forced-air cooling fans
Primary voltage: 115 kV, ±2 × 2.5% off-load tap changer
Secondary voltage: 11.4 kV
Frequency: 50 Hz
Vector group: Dyn1
Impedance: 9.55% at 40 MVA
Windings: Copper
Fittings: ABB bushings, Buchholz relay, pressure relief device, oil and winding temperature indicators, radiators with fans, and bushing current transformers
Configuration: Three high-voltage bushings mounted on top; oil conservator tank
Total weight: Approximately 63 tonnes
Transport weight without oil: Approximately 34 tonnes
Oil: Certified non-PCB, based on laboratory testing dated May 2026
Documentation: ABB rating plate, outline and foundation drawings, protection and current transformer wiring, and factory test report
Application: Suitable for utilities, substations, heavy industrial plants, and 115 kV, 50 Hz networks
Condition: As-is, where-is; held as a plant spare unit
Handling: Buyer to arrange crane lifting and transport. The transformer has previously been rigged and lifted by crane.
Inspection: Welcome by appointment
Nameplate details: Full rating, voltage, impedance, weight, and year information available on request
Please note that this description may have been translated or optimized with artificial intelligence (AI) automatically. The information of this classified ad are only indicative. We recommend to check the details with the seller before a purchase.
| energy-miscellaneous-abb-4050-mva-onanonaf-p261106090_1.pdf | Download |
| Client type | Consultant / Intermediary |
| Active since | 2025 |
| Offers online | 10 |
| Last activity | Nov. 6, 2026 |
Manufacturer: ABB Transformers Ltd, Thailand
Year of manufacture: 1994
Equipment type: Oil-immersed power transformer
Rated power: 40/50 MVA
Cooling: ONAN/ONAF, with radiator banks and forced-air cooling fans
Primary voltage: 115 kV, ±2 × 2.5% off-load tap changer
Secondary voltage: 11.4 kV
Frequency: 50 Hz
Vector group: Dyn1
Impedance: 9.55% at 40 MVA
Windings: Copper
Fittings: ABB bushings, Buchholz relay, pressure relief device, oil and winding temperature indicators, radiators with fans, and bushing current transformers
Configuration: Three high-voltage bushings mounted on top; oil conservator tank
Total weight: Approximately 63 tonnes
Transport weight without oil: Approximately 34 tonnes
Oil: Certified non-PCB, based on laboratory testing dated May 2026
Documentation: ABB rating plate, outline and foundation drawings, protection and current transformer wiring, and factory test report
Application: Suitable for utilities, substations, heavy industrial plants, and 115 kV, 50 Hz networks
Condition: As-is, where-is; held as a plant spare unit
Handling: Buyer to arrange crane lifting and transport. The transformer has previously been rigged and lifted by crane.
Inspection: Welcome by appointment
Nameplate details: Full rating, voltage, impedance, weight, and year information available on request
Please note that this description may have been translated or optimized with artificial intelligence (AI) automatically. The information of this classified ad are only indicative. We recommend to check the details with the seller before a purchase.
ABB Transformers Ltd (Thailand) oil-immersed power transformer, manufactured in 1994 and held as a plant spare unit. The transformer is rated at 40/50 MVA and uses ONAN/ONAF cooling, with radiator banks and forced-air cooling fans. Its primary voltage is 115 kV with a ±2 × 2.5% off-load tap changer, and its secondary voltage is 11.4 kV. It operates at 50 Hz, has a Dyn1 vector group, and an impedance of 9.55% at 40 MVA. The windings are copper.
Fittings include ABB bushings, a Buchholz relay, a pressure relief device, oil and winding temperature indicators, radiators with fans, and bushing current transformers. The configuration includes three high-voltage bushings mounted on top and an oil conservator tank. The stated total weight is approximately 63 tonnes; transport weight without oil is approximately 34 tonnes.
The oil is described as certified non-PCB, based on laboratory testing dated May 2026. Documentation includes the ABB rating plate, outline and foundation drawings, protection and current transformer wiring, and a factory test report. The original ABB nameplate is intact.
This spare transformer is suited to utility, substation, and heavy industrial applications, including 115 kV, 50 Hz networks. It is offered as-is, where-is. The buyer is responsible for arranging crane lifting and transport; the unit has previously been rigged and lifted by crane. Inspection is welcome by appointment. Full rating, voltage, impedance, weight, and year details are available on request.
The following description has been generated using artificial intelligence based on the product information available. It is provided for guidance only and may not reflect all specifications or conditions. Please contact us if you need precise or confirmed details.
| Client type | Consultant / Intermediary |
| Active since | 2025 |
| Offers online | 10 |
| Last activity | Nov. 6, 2026 |
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