Our exceptional 11/0.4kV Copper Oil-Filled Electrical Transformer from TSTY ELECTRIC CO., LTD. is available in a variety of capacities: 50, 80, 100, 150, 160, and 200 kVA, as well as 1, 2, 2.5, 3, 4, and 5 MVA. Designed to handle voltages of 11kV, 10kV, 0.4kV, and 400V, this 3-phase step-down transformer is meticulously engineered for superior performance and reliability in oil-immersed distribution applications.
The rated voltage of our 11/0.4kV Copper Oil-Filled Electrical Transformer can be tailored precisely to meet your specific requirements, ensuring optimal performance in your applications.
The advanced, fully sealed oil-immersed power transformer developed by TSTY ELECTRIC CO., LTD. epitomizes innovation and reliability.
This transformer boasts remarkable advantages, including low loss, minimal noise, and exceptional efficiency, delivering superior energy-saving benefits and significantly reducing environmental impact. Unlike conventional oil-immersed transformers, our fully sealed design eliminates the need for an oil conservator. The volume changes of the oil are expertly managed by the flexible corrugated sheets within the oil tank. This design ensures an airtight environment, preventing oil degradation and insulating material aging. As a result, it enhances operational reliability and requires no maintenance under normal operating conditions.
Main Components:
The primary components 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 immerses the windings in oil, ensuring optimal cooling and insulation.
2. Complies with IEC standards and comes with CE/ISO certifications.
3. Facilitates easy contact and expansion during load changes, allowing the oil temperature to rise and fall accordingly.
4. The Buchholz relay, used with a conservator tank, detects faults such as oil loss or improper oil flow between the tank and transformer.
5. The Breather Unit is equipped with silica gel that absorbs moisture from the oil. The gel changes from blue to pink when it becomes saturated and can no longer absorb moisture.
6. The oil indicator shows the oil level within the conservator unit, ensuring proper monitoring.
7. The temperature detector continuously monitors the oil temperature. If it reaches a critical level, the transformer will automatically disconnect from the service.
8. The pressure relief device reduces the internal pressure within the transformer, preventing potential explosions.
9. The thermal relay acts as a temperature indicator for the winding.
10. Fully galvanized coating ensures no rust formation.
11. The bushing facilitates the connection between the internal windings of the transformer and the external electrical network.
Service Environment
1. Device Types: Outdoor Type
2. Type of Voltage Regulation: Off-Circuit or On-Load
3. Tapping Range: ±5% | ±2x2.5% | ±4x2.5%
4. Frequency: 50Hz or 60Hz
5. Phases: Three or Single
6. Connection Symbol: Dyn11, Yyn0 (or as requested)
7. Short-Circuit Impedance: Standard Impedance
8. Altitude: Not exceeding 1000m, ambient temperature not exceeding 40°C. If these conditions cannot be met, we will adjust parameters in accordance with the standard.
Our 11/0.4kV Copper Oil-Filled Electrical Transformer from TSTY ELECTRIC CO., LTD. is engineered to excel in a wide array of demanding environments. It serves critical roles in a multitude of applications including: waste incineration projects, the monumental Three Gorges Dam project, the significant Zhuhai-Hong Kong-Macao Bridge, and the highly reliable State Grid Corporation. Additionally, it proves indispensable in coal mines, photovoltaic projects, and power stations. Its versatility extends to compact transformer stations, general industrial factories, mines, hospitals, buildings, airports, tunnels, chemical plants, and nuclear power plants. No matter the setting, our transformer ensures optimal performance and reliability.
After-sales service
1. Our company offers comprehensive project and process design services. We meticulously tailor and manufacture products aligned with your equipment purchase plans and unique requirements. Additionally, we provide training for your technical and operational teams.
2. For newly purchased products, we extend online assistance for seamless installation and debugging. Our products are covered under a lifelong service system. Should any issues arise during regular usage, we guarantee a solution within one working day upon receiving your feedback. We strive to ensure the product is operational at the earliest. Moreover, our professional technicians make routine visits to assure the long-term, safe, and reliable performance of our products.
3. We utilize premium, authentic materials and adhere to strict manufacturing processes in line with ISO9001:2000 international quality standards to ensure superior quality and hassle-free installation.
Established in 2011, TSTY Electric Co., Ltd. stands out as a premier and trusted transformer manufacturer in China. Our expertise lies in developing and producing top-tier oil-immersed transformers, dry-type transformers, box-type substations, and comprehensive high and low voltage equipment.
Our project production equipment champions energy conservation, intelligence, and mechanization. We proudly house the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, boasting 71 utility model patents and 15 invention patents.
With extensive experience in the transformer industry and robust technological innovation prowess,TSTY
Our products reach a global audience, being distributed across the Middle East, North America, South America, Europe, Southeast Asia, Africa, and more, covering over 40 countries.
Production Equipment
FAQ
Q: Who are we?
A: We are a leading manufacturer specializing in oil-immersed transformers, dry-type transformers, transformer substations, and HV and LV switchgear, proudly established in 2011.
Q: Why should you choose us over other suppliers?
A: With 12 years of specialized experience in transformer production, we are certified with ISO9001-2008, OHSAS 18001:2007, ISO4001:2004L, CE, CCC, UL, CSA, and TYPE TEST REPORT.
Q: How are transformers shipped?
A: We deliver transformers via ship, train, or truck for overseas transport, with the main active body in bulk and accessories securely packed in wooden cases.
Q: Can your products be customized?
A: Absolutely. Considering variations in voltage, frequency, and other specific requirements in different countries and
regions, our products can be fully customized to meet your specifications.
Q: Do you offer guarantees for your products?
A: Yes, we provide a minimum two-year guarantee for all our transformers.
Q: Do you accept Factory Acceptance Tests (FAT)?
A: Yes, we do. We ensure comprehensive testing for each transformer set.
Q: Do you provide after-sales service with engineers?
A: Yes, we offer after-sales guidance, including installation assistance and inquiries.
Audited Supplier 
){kind=link}
){kind=link}