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Help CenterCast Resin Dry Type Transformer 800kva 1000kva Medium Voltage With 5-Year Warranty
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As a dedicated manufacturer with extensive experience in power distribution solutions, Jinhua Dika Electrical Equipment Co., Ltd. is proud to present our high-performance Cast Resin Dry Type Transformers in 800kVA and 1000kVA ratings for medium voltage applications. Engineered for reliability and safety, these transformers are designed to meet the rigorous demands of modern electrical infrastructure without the need for flammable liquid insulation. Our commitment to quality, backed by a comprehensive 5-year warranty, ensures you receive a product built for long-term, trouble-free operation. We combine robust manufacturing processes with stringent testing to deliver transformers that provide exceptional value and peace of mind for your critical power distribution needs.
Our Cast Resin Dry Type Transformers are engineered with precision to deliver stable and efficient power transformation. The core and coil assembly is vacuum-impregnated and cast in epoxy resin under controlled conditions, creating a solid, monolithic block that is highly resistant to environmental contaminants, moisture, and thermal cycling. This construction eliminates the risks associated with oil leaks and fires, making them an ideal and safe choice for installations where fire safety is paramount, such as:
- High-rise commercial and office buildings
- Hospitals, data centers, and airports
- Industrial manufacturing plants and mining facilities
- Shopping malls, universities, and water treatment plants
The transformer's design focuses on low losses, high efficiency, and excellent overload capacity. The resin encapsulation provides superior protection against harsh atmospheric conditions, including salt spray and corrosive chemicals, ensuring consistent performance even in challenging environments. Furthermore, their dry-type nature means minimal maintenance requirements compared to liquid-filled units, significantly reducing the total cost of ownership over their operational lifespan.
Key Technical Features & Advantages:
- Enhanced Safety & Environmental Friendliness: Contains no flammable oils or liquids, eliminating the risk of fire, explosion, and soil contamination. This feature is crucial for indoor installations and environmentally sensitive areas.
- Superior Dielectric Strength & Thermal Stability: The epoxy resin insulation system offers excellent electrical insulation properties and can withstand high thermal stresses, ensuring stable operation under varying load conditions.
- Low Noise Level: Advanced design and solid resin casting contribute to remarkably low sound power levels, making them suitable for noise-sensitive locations like hospitals and residential complexes.
- High Resistance to Short Circuits: The robust mechanical construction of the resin-encased windings provides high resistance to the dynamic forces of short-circuit currents.
- Easy Installation & Flexibility: Lighter than equivalent oil-filled transformers and requiring no oil containment or fire protection systems, they are easier and more cost-effective to install. They can be placed closer to the load center, reducing cable costs and transmission losses.
Typical Technical Specifications (Standard Design):
| Parameter | 800kVA Model | 1000kVA Model |
| Rated Power | 800 kVA | 1000 kVA |
| Primary Voltage (HV) | Up to 36kV (Customizable) | Up to 36kV (Customizable) |
| Secondary Voltage (LV) | 400V / 415V / 480V (Standard) | 400V / 415V / 480V (Standard) |
| Vector Group | Dyn11, Yyn0, or others | Dyn11, Yyn0, or others |
| Insulation Class | F (155°C) or H (180°C) | F (155°C) or H (180°C) |
| Temperature Rise | 100K (for Class F), 125K (for Class H) | 100K (for Class F), 125K (for Class H) |
| Noise Level (at 1m) | Typically ≤ 65 dB(A) | Typically ≤ 68 dB(A) |
| Protection Degree (Enclosure) | IP20 (standard), IP23, IP31 optional | IP20 (standard), IP23, IP31 optional |
| Cooling | AN/AF (Air Natural / Air Forced) | AN/AF (Air Natural / Air Forced) |
Benefits for Your Project: Choosing our cast resin transformer translates into tangible advantages for your business. You gain a safe and reliable power source that minimizes operational risks. The low maintenance design reduces long-term service costs and downtime. Its environmentally clean profile helps meet sustainability goals and simplifies regulatory compliance. The compact footprint and installation flexibility can lead to savings in space and civil works. Ultimately, the combination of high efficiency and durability ensures a lower total cost of ownership and a strong return on your investment.
Trust and Global Reach: Jinhua Dika Electrical operates with a firm commitment to quality management, which is reflected in our operational practices. We serve a diverse global clientele across North America, South America, Europe, Asia, Africa, and Oceania, demonstrating the universal applicability and reliability of our products. Our capability to ship from major ports like Shanghai, Tianjin, Guangzhou, and Ningbo ensures efficient and flexible logistics for our international partners. The confidence we have in our manufacturing excellence is unequivocally backed by our 5-Year Warranty. This warranty is not just a promise; it's a testament to the durability, rigorous testing, and quality control embedded in every transformer we produce. Partner with us for a power solution that combines advanced technology, unwavering safety, and dependable performance for your medium voltage applications.
Frequently Asked Questions (FAQ):
-
Q: What is the main advantage of a cast resin dry-type transformer over an oil-filled one?
A: The primary advantage is enhanced safety. Cast resin transformers contain no flammable oil, eliminating fire and explosion hazards. They are also more environmentally friendly, require less maintenance, and are suitable for indoor installations close to the load. -
Q: Are these transformers suitable for outdoor installation?
A: While primarily designed for indoor use due to their IP20 standard enclosure, they can be used outdoors if placed in a suitable weatherproof housing or if ordered with a higher ingress protection rating like IP23 or IP54, which is available upon request. -
Q: What does the 5-year warranty cover?
A: Our warranty covers defects in materials and workmanship under normal use and service conditions for a period of five years from the date of commissioning or 66 months from shipment, whichever comes first. It includes the repair or replacement of faulty components. -
Q: Can you provide custom voltage ratings and vector groups?
A: Yes. While we offer standard ratings (e.g., 11kV/400V), our transformers are customizable. We can manufacture units with specific primary and secondary voltages, frequency (50/60Hz), and vector groups (like Dyn11, Yyn0) to match your local grid requirements. -
Q: How is the noise level controlled in these transformers?
A> Noise is minimized through careful electromagnetic design, the use of low-loss core materials, and the damping effect of the solid epoxy resin encapsulation. For applications requiring ultra-low noise, special design considerations can be applied. -
Q: What kind of maintenance is required?
A: Maintenance is minimal. It primarily involves periodic visual inspections, checking for dust accumulation (and cleaning if necessary with dry compressed air), ensuring ventilation paths are clear, and verifying the tightness of electrical connections. No oil testing or filtering is needed. -
Q: Do you provide technical drawings and installation guidelines?
A> Absolutely. With each order, we provide comprehensive documentation including detailed outline drawings, wiring diagrams, weight and dimension details, installation instructions, and test reports to facilitate smooth installation and commissioning. -
Q: What is the typical delivery lead time for an 800kVA or 1000kVA unit?
A> Lead time depends on the order specifications and current production schedule. For standard design units, it is typically within 4-8 weeks after order confirmation. Customized designs may require additional time. Please contact us for a precise schedule based on your requirements.
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