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Help Center100% Copper Windings 1000KVA 11kV Oil-immersed Transformer for Industrial Power Distribution
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As a leading manufacturer in the electrical equipment industry, Jinhua Dika Electrical Equipment Co., Ltd. specializes in delivering robust and reliable power solutions for demanding industrial environments. Our 1000kVA, 11kV oil-immersed transformer with 100% copper windings is engineered to be the cornerstone of your power distribution network, offering superior efficiency, durability, and long-term operational stability. With a commitment to quality underscored by certifications like ISO 9001, we design this transformer to minimize energy losses and maximize uptime, providing a solid return on investment for industrial facilities worldwide.
This transformer is specifically built to handle the rigorous demands of industrial power distribution, ensuring a steady and safe power supply to machinery, production lines, and facility infrastructure. Its core design prioritizes performance under load and resilience against thermal stress, making it a dependable asset for sectors ranging from manufacturing and mining to large-scale commercial complexes.
Key Product Features & Technical Advantages:
- 100% Copper Windings: The use of high-conductivity copper in both high-voltage and low-voltage windings ensures lower resistance, reduced I²R losses, better overload capacity, and enhanced thermal performance compared to aluminum alternatives. This translates directly into higher efficiency and a longer operational lifespan.
- Optimized Oil-immersed Cooling (ONAN): The transformer core and windings are immersed in high-grade mineral oil, which provides excellent electrical insulation and efficient heat dissipation. The Oil Natural Air Natural (ONAN) cooling method allows for quiet, reliable operation without the need for auxiliary cooling fans under normal load conditions.
- Robust Mechanical Construction: The tank is constructed from high-quality steel, treated for corrosion resistance, and designed with reinforced structures to withstand transportation stresses and environmental factors. All external fittings, including bushings, conservator, and radiators, are selected for durability and safety.
- Enhanced Protection & Safety Features: Standard equipment includes a Buchholz relay for fault gas detection, a pressure relief device, a silica gel breather to maintain oil dryness, and temperature indicators (WTI/OTI). These features provide early warning signs and help prevent catastrophic failures.
- Customizable Configurations: While built to standard specifications, various options are available to meet specific project requirements. These can include different LV voltage outputs, on-load or off-circuit tap changers, special bushings, and protective coatings for corrosive environments.
Technical Specifications at a Glance:
| Parameter | Specification / Value |
| Rated Power | 1000 kVA |
| High Voltage (HV) | 11 kV (50/60 Hz) |
| Low Voltage (LV) - Typical | 400V / 433V (Customizable) |
| Vector Group | Dyn11, Yyn0, or others |
| No-load Loss (Po) | Compliant with IEC 60076 standards |
| Load Loss (Pk) | Optimized for high efficiency |
| Impedance Voltage (Uk%) | Typically 4-6% (as specified) |
| Insulation Level (HV/LV) | LI 75 AC 28 / LI 0 AC 3 kV |
Benefits for Your Industrial Operation:
- Reduced Total Cost of Ownership: The high efficiency from copper windings lowers energy consumption costs over the transformer's entire service life, offsetting the initial investment.
- Superior Reliability & Uptime: The robust design and quality materials minimize the risk of unexpected failures, ensuring continuous power for critical industrial processes.
- Long Service Life: High-quality materials, careful manufacturing, and effective cooling contribute to an extended operational lifespan, often exceeding 25 years with proper maintenance.
- Low Maintenance Requirements: The sealed tank and reliable components reduce the need for frequent interventions, lowering long-term maintenance costs.
- Global Compliance: Manufactured with reference to international standards like IEC 60076, facilitating integration into power systems worldwide.
Jinhua Dika Electrical Equipment Co., Ltd. brings over a decade of manufacturing expertise and a proven global track record to every product. With an annual export value ranging between US$1-1.5 Million and a presence in key markets across North America, Europe, Southeast Asia, Africa, and beyond, we understand the diverse needs of industrial clients. Our comprehensive quality management system, certified under ISO 9001, governs every stage of production, from material sourcing to final testing. Supported by flexible shipping options from major Chinese ports like Shanghai, Tianjin, Guangzhou, and Ningbo, we ensure timely and reliable delivery of your critical power equipment.
Choosing our 1000kVA oil-immersed transformer means investing in a power distribution solution that prioritizes efficiency, durability, and safety. We invite you to contact our technical sales team to discuss your specific application requirements, request detailed technical data sheets, or obtain a competitive quotation. Let us help you build a more reliable and cost-effective power infrastructure for your industrial facility.
Frequently Asked Questions (FAQ):
-
Q: Why is copper used for the windings instead of aluminum?
A: Copper offers higher electrical conductivity and mechanical strength than aluminum. This results in lower energy losses (higher efficiency), better resistance to thermal cycling and short-circuit stresses, and a more compact design for the same power rating, leading to greater long-term reliability. -
Q: What is the expected efficiency of this 1000kVA transformer?
A: The efficiency is high due to the copper windings and optimized core design. Exact efficiency figures depend on the specific load profile and design parameters, but it is engineered to meet or exceed the requirements of relevant IEC and national efficiency standards for distribution transformers. -
Q: Is this transformer suitable for outdoor installation?
A: Yes, it is designed as a standard outdoor-type transformer. The tank is weatherproof and corrosion-protected. However, site-specific conditions like extreme pollution, salinity, or altitude should be communicated for any necessary design adaptations. -
Q: What kind of oil is used, and is it environmentally friendly?
A: Standard units are filled with high-quality mineral oil that meets industry specifications for dielectric strength and stability. Alternative biodegradable or less-flammable fluids (like silicone or ester oil) can be explored as optional features upon request. -
Q: Do you provide installation and commissioning services?
A: While we primarily supply the equipment, we can provide detailed installation manuals, drawings, and technical guidance. On-site supervision or commissioning services can be arranged separately based on project needs and location. -
Q: What is the typical delivery lead time for this model?
A: Lead time varies based on order quantity, customization requirements, and production schedule. For standard specifications, it is typically within 4-8 weeks after order confirmation. We provide a more accurate timeline upon receipt of your detailed inquiry. -
Q: Can the transformer be customized for a different primary voltage, like 10kV or 13.8kV?
A: Yes, voltage ratings are a key customizable parameter. We can manufacture transformers for various standard medium-voltage levels, including 10kV, 11kV, 13.8kV, 22kV, and 33kV, to match your local grid specifications. -
Q: What after-sales support and warranty do you offer?
A: We offer a standard warranty period for our transformers, covering manufacturing defects. Our technical support team is available to assist with operational queries, troubleshooting, and spare parts identification throughout the product's lifecycle.
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