220KV POWER TRANSFORMER SFZ22-240000/220

The rated capacity of the said transformer is 240 MVA, it adopts high-conductivity low-loss oriented silicon steel sheet, no-load loss is reduced by more than 10% compared with the traditional model, meets the level 2 energy efficiency standards. Its on-load voltage regulation function supports ±81.25% tap range, which can dynamically adjust the voltage to adapt to load changes and ensure the stability of power supply. The product adopts fully enclosed tank structure, equipped with pressure release valve and other protective devices, has strong short-circuit resistance, adapted to high-altitude, harsh environment operation, the highest operating altitude of more than 5,000 meters. It is widely used in power grid, industrial enterprises, wind power, photovoltaic and other new energy fields, help "West-East Power Transmission" and other major national projects, and exported to many countries.

330KV POWER TRANSFORMER OSFPSZ22-360000/330

The transformer adopts three-phase air-cooled forced-oil-circulation and on-load voltage regulation technology, with a rated capacity of 360MVA/330kV, designed for high-voltage power transmission. The transformer has a number of advantages: low loss (no-load ≤ 120kW, load ≤ 852kW, to achieve the grade 1 energy efficiency), intelligent operation and maintenance (support IEC 61850 protocol and online monitoring), high reliability (strong oil air-cooled design, to adapt to a wide temperature range of -25℃ to +45℃, service life of up to 30 years), as well as green environmental protection (noise ≤ 65dB, equipped with nitrogen oil injection device). Therefore, it is widely used in power grid, new energy and industrial power transmission and distribution fields.

500KV POWER TRANSFORMER ODFS-334000/500

The 500kV three-phase auto-transformer, with a single capacity of 334MVA, adopts single-phase split design and integrated ONAN/ONAF/ODAF multi-stage intelligent cooling system. The product selects high-permeability silicon steel sheet and new leakage control technology, the no-load loss is reduced by 10%, the load loss is optimized by 8%, and it reaches the Grade 1 energy efficiency standard. The innovative design of wall-mounted cooling structure reduces the overall width by 1 meter, significantly reducing the occupied area of substation. It is characterized by strong short-circuit resistance and high insulation reliability (local discharge ≤ 50pC), etc. It has been successfully applied in the project of Acheng Yongyuan Power Station of State Grid Heilongjiang Electric Power Co. Ltd. to help the safe and stable operation of ultra-high voltage power grid.