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As a dedicated manufacturer with over a decade of experience, Jinhua Dika Electrical Equipment Co., Ltd. specializes in providing robust and reliable power distribution solutions. Our 11kV 1000kVA Oil-immersed Transformer is engineered for critical applications in substations and grid integration, ensuring stable voltage transformation and efficient power flow. Designed for durability and long-term performance, this transformer is a cornerstone for modern electrical infrastructure, offering utilities and industrial clients a dependable component for their power networks.
The core value of our transformer lies in its ability to deliver consistent, high-efficiency power conversion under demanding conditions. Built with precision and adhering to stringent international standards, it minimizes energy losses and enhances the overall reliability of your electrical system. We combine advanced manufacturing techniques with rigorous quality control, backed by our ISO 9001 and ISO 14000 certified processes, to ensure every unit meets the highest expectations for performance and environmental responsibility.
Key Features & Technical Advantages:
- Robust Construction: The tank is fabricated from high-quality steel, providing excellent mechanical strength and corrosion resistance for outdoor installation.
- Advanced Core Design: Utilizes grain-oriented silicon steel laminations for the core, significantly reducing no-load losses and ensuring quiet, efficient operation.
- Superior Insulation System: The oil-paper insulation system is meticulously designed and processed to withstand high dielectric stresses, ensuring long service life and operational safety.
- Flexible Configuration: Available with either copper or aluminum windings, and customizable tapping options (±2 x 2.5% or ±5%) to match specific grid voltage requirements.
- Comprehensive Protection: Standard fittings include a conservator tank with silica gel breather, pressure relief device, and temperature indicators (WTI/OTI) for proactive monitoring and safety.
- Optimized Cooling: The ONAN (Oil Natural Air Natural) cooling method ensures effective heat dissipation, maintaining optimal operating temperatures under rated load.
Detailed Technical Specifications:
| Parameter | Specification |
| Rated High Voltage | 11 kV |
| Rated Low Voltage | 0.4 kV (or as required) |
| Rated Capacity | 1000 kVA |
| Vector Group | Dyn11, Yyn0, or others (optional) |
| No-load Loss (P0) | Approx. 1200 W (typical, customizable) |
| Load Loss (Pk) | Approx. 10500 W (typical, customizable) |
| Impedance Voltage (Uk) | Approx. 6% (typical, customizable) |
| Sound Level | ≤ 65 dB(A) (at rated load) |
Benefits for Your Operation:
- Enhanced Grid Stability: Provides reliable voltage transformation, crucial for maintaining power quality and stability in substation applications.
- Reduced Operational Costs: High efficiency translates to lower energy losses over its lifespan, offering significant cost savings.
- Low Maintenance: The sealed tank and high-quality insulating oil system minimize the need for frequent maintenance, reducing downtime.
- Adaptability: Customizable options for winding material, tap changers, and accessories allow it to be tailored to specific project requirements and local grid codes.
- Long Service Life: Designed and manufactured with premium materials and processes, it ensures a service life exceeding 25 years under normal operating conditions.
Frequently Asked Questions (FAQ):
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Q: What is the primary application of this 11kV 1000kVA transformer?
A: It is primarily designed for step-down voltage transformation within electrical substations, industrial parks, and for integrating distributed generation sources into the main power grid. -
Q: Can you provide transformers with different vector groups?
A: Yes, we can manufacture transformers with various vector groups like Dyn11, Yyn0, or others based on your system's phase relationship and protection scheme requirements. -
Q: What are the available winding material options?
A: The transformer can be supplied with either copper or aluminum windings. Copper offers lower resistance and higher efficiency, while aluminum provides a cost-effective alternative. -
Q: Is this transformer suitable for outdoor installation?
A: Absolutely. It is designed as a fully weatherproof, outdoor-type transformer with a robust corrugated or radiators tank, making it ideal for substation yards. -
Q: What kind of oil is used, and what are its maintenance requirements?
A: We use high-grade mineral insulating oil. The sealed system requires periodic oil testing (Dissolved Gas Analysis - DGA) as per maintenance schedules, but routine oil changes are generally not needed. -
Q: Do you offer customization for special voltage ratios or impedances?
A: Yes, we specialize in custom engineering. Parameters like voltage ratio, impedance, and losses can be optimized to meet your specific project specifications. -
Q: What certifications do your manufacturing processes hold?
A: Our production is certified under ISO 9001 for quality management and ISO 14000 for environmental management, ensuring consistent quality and responsible manufacturing. -
Q: What are your main export regions and shipping terms?
A: We export extensively to North America, Southeast Asia, Eastern Europe, Africa, and the Middle East. We ship from major Chinese ports like Shanghai, Tianjin, Guangzhou, and Ningbo, offering flexible trade terms (FOB, CIF, etc.).
Choosing Jinhua Dika means partnering with a proven manufacturer with a solid track record. Our annual export value of US$1 Million - US$1.5 Million and our presence in diverse global markets from North America to Oceania are testaments to the reliability and acceptance of our products. Supported by a dedicated team of 11-50 skilled professionals, we ensure meticulous attention to detail from design to dispatch. This 11kV 1000kVA oil-immersed transformer embodies our commitment to delivering power solutions that are not only efficient and durable but also backed by comprehensive certifications and a global logistics network. Contact us today to discuss how this transformer can enhance the reliability and efficiency of your substation or grid integration project.
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