18.75MVA 66/11.55kV Three Phase Step Down Oil Immersed Power Transformer

220KV series oil immersed power transformer produced with global advanced technology and equipment, continuously updating the manufacturing experience and processing. We developed high-grade power transformer that sufficiently satisfy the operation conditions of domestic and foreign power grid.

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PRODUCT DETAILS

This rated power is 15 MVA with ONAN cooling method. The power is up to 18.75MVA when it is ONAF. The voltage is 66 to 11.55 kV, 66 kV primary, 11.55 kV secondary. The on load tap changer has 17 steps, +10%; -10% in 1.25% Steps. There are two conservators for the transformer. And the transformer has Automatic Voltage Regulator (AVR), it can adjust voltage automatically. At the same time, the voltage is suitable for parallel operation.


Scope of Supply
Product: Liquid Filled Power Transformer

Rated Power: Up to 200 MVA

Primary Voltage: Up to 230 KV

The transformer can be designed according to customer's requirements.


Technical Specification
18.75 MVA power transformer specification and data sheet


ModelSFZ-18750/66
TypeOil Immersed Power Transformer
StandardIEC60076
Rated Power18.75MVA (ONAF)
Frequency50 HZ
PhaseThree
Cooling TypeONAN/ONAF
Primary Voltage66 kV
Secondary Voltage11.55 kV
Winding MaterialCopper
Vector GroupDyn1
Impedance10%
Tap ChangerOLTC
Tapping Range±8*1.25% @ Primary Side
No Load Loss15.5KW
On Load Loss78.9KW
AccessoriesStandard Configuration
RemarksN/A

Finished 18.75MVA 66/11.55kV Transformer

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Packing and Delivery

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