Weg transformers, 72/96/120 MVA, new

Online auction of Transformers and large power reactors:

Transformer 500/34.5 kV – 72/96/120 MVA - 2 units
Transformer 500/34.5 kV – 96/128/160 MV- 2 units
Shunt Reactor con todos los accesorios. 23MVar, 500kV - 6 Units

Details:

• Location: Puerto Brisa, La Guajira (Colombia).
• Condition: new material.
• Method of sale: online auction open to national and international companies.

• Auction opening date: 04/08/25
• Date of visits: from 05/06/25 to 05/08/25
• Auction Closing Date: 05/14/25

• Auction opening date: 04/08/25
• Date of visits: from 05/06/25 to 05/08/25
• Auction Closing Date: 05/14/25

• Manufacturer: WEG.
• Application Regulations: Complies with IEC 60076 standard.
• Type of Transformer: Columns.
• Service Conditions: Designed for outdoor installation, suitable for altitudes less than 1000 meters above sea level, and can operate in ambient temperatures up to 40°C.
• Power Rating: The power varies with the cooling method used, being 72 MVA in ONAN, 96 MVA in ONAF1, and 120 MVA in ONAF2.
• Transformation Ratio: 500 kV on the high voltage (HV) side and 34.5 kV on the medium voltage (MV) side.
• Connection Group: YNd11.
• Cooling Method: ONAN/ONAF1/ONAF2.
• Tap Changer Method: ON LOAD, with HV tap range of +13/-13 x 1.25%.
• Insulation Levels and Supported Voltage:
• Full lightning impulse: 1675 kV in HV.
• Long-term induced voltage: 680 kV in HV.
• Warm-up:
• Oil maximum: 60°C.
• Maximum winding: 65°C.
• Hot Winding Spot: 78°C.
• Short Circuit Voltages: At 75°C base power ONAF.
• Excitation Current: 0.25% at the nominal primary voltage, increasing to 0.625% at 110% of the nominal primary voltage.
• Guaranteed Losses:
• Losses in iron at rated voltage: 50 kW.
• Copper losses at full load at the main socket: 337 kW.
• Insulating oil: Naphthenic Mineral Oil Type A
• Manufacturer: Nynas
• Type: NYTRO 11GBX-US
• Dimensions and Weight:
• Overall dimensions: Length 11950 mm, Width 9000 mm, Maximum Height 10095 mm.
• Core and winding weight: 74916 kg.
• Total weight with oil: 188,010 kgs
• Insulating oil weight (75695 L): 66.570 kgs
• Transport dimensions: Length 9215 mm, Width 4500 mm, Maximum height 4615 mm.