Single-Phase GSU Transformer for Nuclear Power Plant-500kV

484MVA/500kV single-phase GSU (Generator Step-Up) transformer for nuclear power plants steps up generator voltage to 500kV for efficient grid transmission. Designed with ultra-high reliability: high-permeability silicon steel cores, oxygen-free copper windings, redundant protection systems, and radiation-resistant construction for harsh nuclear environments.

Strong short-circuit withstand capability and low-loss design ensure continuous safe and energy-efficient operation.

Features

• Ultra-high reliability & redundant protection — High-permeability silicon steel cores and oxygen-free copper windings combined with redundant relay protection devices that real-time monitor current, voltage, and temperature; smart sensors provide data support for preventive maintenance

• Strong short-circuit resistance — Specially wound windings with enhanced mechanical strength withstand powerful electromagnetic forces during grid faults, maintaining structural integrity and preventing equipment damage or plant shutdown

• Adaptability to harsh nuclear environments — Radiation-shielded enclosures with high-temperature-resistant, moisture-resistant, and corrosion-resistant insulation materials and protective coatings ensuring stable performance under radiation, high temperature, humidity, and chemical exposure

• Large capacity and high-voltage compatibility — 484 MVA single-phase (1452 MVA three-phase bank) stepping up to 500kV, matching large nuclear unit capacity requirements

• Low loss and energy efficiency — Optimized core structure and winding design minimizing hysteresis and resistance losses, reducing generation costs and carbon emissions

Parameter

Environmental Conditions

• Ambient temperature: −25 °C to +40 °C (24h average ≤ +35 °C)

• Altitude: ≤ 1000 m

• Relative humidity: ≤ 90% (at +25 °C)

• Solar radiation: ≤ 1000 W/m²

• Pollution level: Light to heavy