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1000kV Single-Phase Generator Transformer

1000kV Single-Phase Generator Transformer

DFP-400000/1000

Product Overview

Core equipment for UHV AC transmission projects, featuring single-phase oil-immersed construction for 1000kV UHV grids. Low loss, low noise, high reliability — successfully deployed in the world's first ±1100kV UHV DC transmission project.

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Technical Specifications

ModelDFP-400000/1000
Rated Capacity400000 kVA
Rated Voltage Ratio(1100/√3/-4x1.25%)/27 kV
Short-Circuit Impedance18%
Rated Frequency50 Hz
Connection SymbolIi0
Insulation LevelSI1800LI2250AC1100(5min)-LI325AC140/LI200AC85 kV
Cooling MethodODAF
No-Load Loss178 kW
Load Loss622 kW
Temperature Rise LimitTop Oil: 50
Winding Average: 60 K
Noise (Sound Pressure Level)≤75 dB(A)