Discover the unparalleled performance of our 12500kVA Copper Oil-Immersed Power Transformer. Engineered by TSTY ELECTRIC CO., LTD., this powerhouse of innovation offers a range of capacities: 50, 80, 100, 150, 160, and 200 kVA. Available in multiple configurations including 1, 2, 2.5, 3, 4, and 5 MVA, it supports voltages of 11kV, 10kV, 0.4kV, and 400V. Designed for 3-phase step-down operations, this electric power oil-immersed distribution transformer ensures optimal efficiency and reliability for all your high-demand applications.
| Number of Phase |
Three Phase |
| Winding Type |
Two Winding |
| Rated Capacity |
200kVA |
| High Voltage |
10/11kV |
| Low Voltage |
0.4kV |
| Tapping Range |
±2x2.5% |
| Impedance Voltage |
4% |
| Load Loss |
2.73/2.6kW |
| No-load Loss |
0.34kW |
| No-load Current |
1.0% |
| Frequency |
50/60Hz |
| Connection Group |
Yyn0/Dyn11 |
| Cooling Method |
ONAN |
| Coil Material |
Aluminum/Copper |
| Size |
1240x780x1360mm |
| Weight |
910kg |
The rated voltage can be customized to meet customers' specific requirements, offering unparalleled flexibility.
The fully sealed oil-immersed power transformer developed by TSTY boasts
the advantages of low loss, low noise, and high efficiency, resulting in significant energy savings and reduced environmental impact. Unlike ordinary oil-immersed transformers, TSTY's fully sealed transformers eliminate the need for an oil conservator. The oil volume is automatically adjusted and compensated by the elasticity of the corrugated sheet in the corrugated oil tank. This design isolates the transformer from the air, preventing oil deterioration and insulation aging, enhancing operational reliability, and eliminating the need for maintenance during normal operation.
Main Components:
The essential parts of the 12500kVA Copper Oil-Immersed Power Transformer from TSTY ELECTRIC CO., LTD. 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 designed to submerge the windings, providing necessary cooling and insulation.
2. Compliant with IEC standards and proudly certified with CE/ISO qualifications.
3. Facilitates seamless contact and expansion during loading, thus allowing the oil temperature to rise and cool effectively.
4. The Buchholz relay is essential when a conservator tank is used, signaling faults such as low oil levels or improper oil flow between the tank and transformer.
5. The Breather Unit contains silica gel that absorbs moisture from the oil, changing color from blue to pink when saturated.
6. The oil indicator provides a clear reading of the oil level within the conservator unit.
7. The temperature detector continuously monitors the oil temperature, automatically disconnecting the transformer from service if the temperature exceeds safe levels.
8. The pressure relief device mitigates internal pressure to prevent transformer explosions.
9. The thermal relay serves as a temperature indicator for the windings, ensuring safe operation.
10. Fully galvanized coating ensures no rust, maintaining durability and longevity.
11. The bushing connects the internal windings of the transformer to the external electrical network, ensuring seamless and reliable performance.
Service Environment
1. Device types: Outdoor type - Built to withstand the elements, ensuring reliable performance in any weather.
2. Type of Voltage Regulation: Off-circuit or On-load - Providing flexible options for precise voltage control.
3. Tapping Range: ±5%, ±2x2.5%, ±4x2.5% - Enabling adaptable voltage adjustments to suit various applications.
4. Frequency: 50Hz or 60Hz - Compatible with both standard power frequencies for global usability.
5. Phases: Three or single - Versatile configurations to meet diverse power needs.
6. Connection Symbol: Dyn11, Yyn0 (or as requested) - Customizable connections for seamless integration into your power systems.
7. Short-circuit Impedance: Standard Impedance - Engineered for optimal performance and safety.
8. Altitude: Not exceeding 1000m, ambient temperature not exceeding 40°C. If conditions vary, we will adjust parameters according to standards to ensure optimal functionality.
Our 12500kVA Copper Oil-Immersed Power Transformer is engineered to excel in a multitude of demanding environments. From waste incineration projects and the colossal Three Gorges Dam Project to the iconic Zhuhai-Hong Kong-Macao Bridge, this transformer is the backbone of numerous critical infrastructures. Trusted by the State Grid Corporation and extensively utilized in coal mines, photovoltaic project power stations, and compact transformer stations, our transformer ensures reliable energy distribution. It's the go-to choice for normal industrial factories, mines, hospitals, buildings, airports, tunnels, and chemical plants. Even in high-stakes settings like nuclear power plants, our product delivers unmatched performance and dependability.
After-sales service
1. TSTY ELECTRIC CO., LTD. is dedicated to offering comprehensive project design and process engineering. We meticulously design and manufacture products tailored to your equipment purchase plans and specific requirements. Additionally, we provide specialized training for your technical and operational personnel to ensure optimal performance.
2. For newly purchased products, TSTY ELECTRIC CO., LTD. delivers unrivaled online support for seamless installation and debugging. Our commitment to lifelong service ensures that if any issues arise during normal use, we will furnish solutions within one working day upon receiving user feedback. Our goal is to restore your product's functionality promptly. Furthermore, our professional technicians conduct regular visits to guarantee the long-term, safe, and reliable operation of our products.
3. We pride ourselves on utilizing premium, authentic materials and adhere to stringent ISO9001:2000 international quality management standards. This rigorous process ensures unparalleled quality and facilitates smooth installation, thereby delivering exceptional performance and reliability.
Established in 2011, TSTY Electric Co., Ltd. has swiftly risen as a beacon of excellence and reliability in the transformer manufacturing sector in China. Our expertise is highlighted by our diverse product lineup, which includes oil-immersed transformers, dry-type transformers, box-type substations, and comprehensive high and low voltage equipment.
We champion energy efficiency, intelligence, information integration, and mechanization in all our production endeavors. Our state-of-the-art Henan Triangle Energy-saving Transformer Engineering Technology Research Center boasts 71 utility model patents and 15 groundbreaking invention patents.
With years of dedicated experience and unparalleled technological innovation in the transformer industry,TSTY
Our products have gained international acclaim, reaching the Middle East, North America, South America, Europe, Southeast Asia, Africa, and beyond, covering an impressive 40+ countries.
Production Equipment
FAQ
Q: Who are we?
A: We are a leading professional manufacturer specializing in oil-immersed transformers, dry-type transformers, transformer substations, and HV and LV switchgear, since our establishment in 2011.
Q: Why should you buy from us and not other suppliers?
A: With 12 years of specialized experience in transformer production, we hold prestigious certifications, including ISO9001-2008, OHSAS 18001:2007, ISO4001:2004L, CE, CCC, UL, CSA, and TYPE TEST REPORT, ensuring the highest quality.
Q: How are transformers shipped?
A: Transformers are meticulously shipped via ship, train, or truck for overseas delivery, with the main active body in bulk and accessories safely encased in wooden crates.
Q: Can your products be customized?
A: Considering the variance in voltage, frequency, and other specificities of transformer products across different countries and
regions, our products can be fully customized to meet your unique requirements.
Q: Do you offer a guarantee for the products?
A: Yes, we confidently provide a minimum of two years guarantee on all our transformers, ensuring reliability and peace of mind.
Q: Do you accept FAT (Factory Acceptance Test)?
A: Absolutely. Factory Acceptance Tests are available, and we ensure rigorous testing for each transformer set we produce.
Q: Do you assign engineers for after-sales service?
A: Yes, for all our products, we offer comprehensive after-sales support, including installation guidance and prompt resolution of any inquiries.
Audited Supplier 
){kind=link}
){kind=link}