Discover the unparalleled efficiency and reliability of our 11/0.4kV and 33/0.4kV Copper Oil-Immersed Transformers. Offering capacities ranging from 50 kVA to 5 MVA, our high-performance transformers are designed to meet the diverse demands of modern electric power distribution. With voltage ratings of 11kV, 10kV, 0.4kV, and 400V, these three-phase step-down transformers ensure a seamless and robust power supply. Engineered for excellence, they are the perfect solution for all your electric power distribution needs, providing exceptional performance and long-lasting durability.
The rated voltage can be meticulously tailored to match the precise requirements of our esteemed customers.
The state-of-the-art, fully sealed oil-immersed power transformer, a proud innovation by TSTY, boasts unparalleled benefits such as:
remarkably low loss, minimal noise, and exceptional efficiency , ensuring outstanding energy-saving performance and significantly curbing pollution. Unlike conventional oil-immersed transformers, this advanced fully sealed model eliminates the oil conservator. The fluctuation in oil volume is seamlessly managed and compensated by the flexible corrugated sheet within the corrugated oil tank, effectively isolating the transformer from air exposure. This ingenious design helps in preventing and slowing down oil degradation and insulation aging, thereby enhancing operational reliability and negating the need for regular maintenance during normal operation.
Main Components:
The primary parts of this transformer include the Oil Tank, Conservator, Buchholz Relay, Breather Unit, Oil Indicator, Temperature Detector, Pressure Relief Device, Thermal Relay, Radiator, and Bushing.
1. The oil tank is utilized to immerse the windings, ensuring optimal cooling and insulation.
2. Complies with IEC standards and holds CE/ISO certifications.
3. It expands and contracts during loading, allowing the oil temperature to rise and fall efficiently.
4. The Buchholz relay operates when a conservator tank is present, detecting issues such as oil loss, improper oil flow between the tank and transformer.
5. The Breather Unit contains silica gel that absorbs moisture. It changes color from blue to pink when saturated.
6. The oil indicator displays the oil level within the conservator unit.
7. The temperature detector monitors the oil temperature. If it rises beyond a certain point, the transformer is automatically disconnected.
8. The pressure relief device reduces internal pressure to prevent transformer explosions.
9. The thermal relay acts as a temperature indicator for the windings.
10. Fully galvanized coating ensures no rust formation.
11. The bushing connects the transformer's internal windings to an external electrical network.
Prime Service Environment
1. Device Types: Rugged and Reliable Outdoor Type
2. Type of Voltage Regulation: Versatile Off-circuit or On-load Options
3. Tapping Range: Precision Levels of ±5%, ±2x2.5%, ±4x2.5%
4. Frequency: Compatible with Both 50Hz and 60Hz
5. Phases: Flexible Three or Single Phase Configurations
6. Connection Symbol: Customizable Options like Dyn11, Yyn0 (or as requested)
7. Short-circuit Impedance: Industry-standard Impedance
8. Optimal Conditions: Altitude not exceeding 1000m, ambient temperature not exceeding 40°C. For extreme conditions, we modulate parameters to meet standards.
Our Copper Oil-Immersed Transformers, available in 11/0.4kV and 33/0.4kV specifications, are impeccably engineered to serve across a diverse spectrum of critical sectors. They are ideally suited for applications including waste incineration projects, the monumental Three Gorges Dam, the iconic Zhuhai-Hong Kong-Macao Bridge, and the robust State Grid Corporation. Additionally, these transformers are integral to the operations of coal mines, photovoltaic projects, power stations, and compact transformer stations. Their reliability makes them perfect for use in standard industrial factories, mines, hospitals, buildings, airports, tunnels, chemical plants, and even nuclear power plants. Explore unmatched efficiency and stability with TSTY ELECTRIC CO., LTD.
After-sales service
1. Our company offers comprehensive project and process design services, tailored to your specific equipment purchase plans and unique requirements. We also provide expert training for your technical and operational personnel to ensure seamless integration and functionality.
2. For newly purchased products, we offer online support for installation and debugging. Our products benefit from a lifelong service system. Should any issues arise during normal use, we promise to provide a solution within one working day of receiving your feedback. Our dedicated team strives to resume product functionality at the earliest. Additionally, our professional technicians conduct regular visits to guarantee the long-term, safe, and reliable operation of our products.
3. We ensure excellence by using top-quality authentic materials and adhering to the rigorous standards of ISO9001:2000 international quality management. This guarantees superior quality and smooth installation of our products!
Founded in 2011, TSTY Electric Co., Ltd. stands as a beacon of excellence and reliability in the realm of transformer manufacturing in China. Our company specializes in the development and production of high-quality oil-immersed transformers, dry-type transformers, advanced box-type substations, and comprehensive high and low voltage equipment.
Our cutting-edge production and operational equipment emphasize energy efficiency, smart technology, informatization, and mechanization. We proudly host the Henan Triangle Energy-saving Transformer Engineering Technology Research Center and boast an impressive portfolio of 71 utility model patents and 15 invention patents.
Leveraging years of industry experience and our strong technological innovation prowess,TSTY
Our products reach a global market, including the Middle East, North America, South America, Europe, Southeast Asia, Africa, and beyond, spanning over 40 countries.
Production Equipment
Audited Supplier 
){kind=link}