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Home > Electrical & Electronics > Power Supply & Distribution > Switchgear > 11kV/0.4kV 1000KVA Three-Phase Oil-Immersed Transformer, 100% Copper
11kV/0.4kV 1000KVA Three-Phase Oil-Immersed Transformer, 100% Copper
Product Spotlights
100% copper windings ensure high efficiency, low energy loss, and extended service life. Robust oil-immersed design provides excellent cooling and insulation for reliable 11kV/0.4kV power transformation. Customizable features like tapping range, vector group, and accessories cater to specific project needs. Manufactured under a stringent quality management system by an experienced exporter serving global markets.
US$ 285
≥10 Units
Key Specifications
Get Latest Price
Rated Capacity:
1000 kVA
Primary Voltage:
11 kV
Secondary Voltage:
0.4 kV
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Rated Capacity
1000 kVA
Primary Voltage
11 kV
Secondary Voltage
0.4 kV
Winding Material
100% Copper
Cooling Type
Oil-Immersed (ONAN)
Phase
Three-Phase
Insulation Class
Class A (105°C)
Tapping Range
±2×2.5% or ±5% (Customizable)
Application
Power Distribution Networks, Industrial Plants
As a professional manufacturer with a strong export presence, Jinhua Dika Electrical Equipment Co., Ltd. is proud to present our high-performance 11kV/0.4kV 1000kVA Three-Phase Oil-Immersed Transformer. Engineered with 100% copper windings, this transformer is designed to deliver reliable and efficient power transformation for demanding industrial and utility applications. Our commitment to quality, backed by a comprehensive management system, ensures that every unit meets stringent performance and durability standards, providing a robust solution for your power distribution needs.
This transformer is a cornerstone of stable electrical infrastructure. Its design focuses on longevity, efficiency, and safety, making it suitable for a wide range of environments and operational demands.
- Superior Efficiency & Reduced Losses: The use of 100% copper for both high-voltage and low-voltage windings ensures excellent electrical conductivity. This results in lower resistive losses (I²R losses) compared to aluminum alternatives, leading to higher operational efficiency and significant energy savings over the transformer's lifespan.
- Enhanced Thermal Performance & Longevity: Copper windings have a higher thermal conductivity, allowing for better heat dissipation. Combined with high-quality insulating oil and a robust tank design, this ensures stable operation under full load, reduces thermal stress, and significantly extends the service life of the transformer.
- Robust Construction for Reliability: The core is assembled from high-grade, grain-oriented silicon steel laminations to minimize core losses (hysteresis and eddy current losses). The entire active part is securely clamped and immersed in high-performance transformer oil, which provides superior insulation and cooling.
- Advanced Protection & Safety Features: The transformer tank is equipped with standard accessories for safe operation, including a conservator tank with silica gel breather to prevent moisture ingress, a pressure relief device for over-pressure protection, and a thermometer pocket for temperature monitoring. Optional features like Buchholz relays and sudden pressure relays are available for enhanced gas and fault protection.
- Flexible Configuration Options: We understand that project requirements vary. Therefore, this transformer can be customized with different tapping ranges (e.g., ±2x2.5% or ±5%), various types of bushings (porcelain or polymer), and optional radiators or fans (ONAF cooling) for increased capacity if needed.
Below is a summary of the key technical specifications for this model:
| Parameter | Specification |
|---|---|
| Rated Capacity | 1000 kVA |
| Primary Voltage (High Side) | 11 kV |
| Secondary Voltage (Low Side) | 0.4 kV (400V) |
| Frequency | 50 Hz / 60 Hz (Selectable) |
| Vector Group | Dyn11, Yyn0, or others (Customizable) |
| No-Load Loss (Po) | Approx. 1.2 kW (Meets or exceeds relevant standards) |
| Load Loss (Pk) | Approx. 10.5 kW at 75°C (Meets or exceeds relevant standards) |
| Impedance Voltage (Uk%) | Typically 4% or 6% (Customizable) |
| Insulation Level | LI 75 kV AC 28 kV (Standard) |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Oil Type | Mineral Oil (Alternative biodegradable oils available upon request) |
Frequently Asked Questions (FAQ)
-
What are the main advantages of copper windings over aluminum in this transformer?
Copper offers higher electrical conductivity, leading to lower energy losses and better efficiency. It also has superior mechanical strength and thermal conductivity, which enhances the transformer's ability to handle overloads and extends its operational life, providing a better return on investment. -
Is this transformer suitable for both 50Hz and 60Hz power systems?
Yes, the design can be optimized for either 50Hz or 60Hz operation. Please specify your required system frequency during inquiry so we can configure the unit accordingly to ensure optimal performance. -
What standard certifications does this product comply with?
Our manufacturing processes are governed by a robust quality management system. While specific product certifications like IEC standards are applicable, our factory operates under recognized management system standards to ensure consistent quality control. -
Can the impedance voltage (Uk%) be customized?
Absolutely. The standard impedance is often 4% or 6%, but we can adjust the design to meet specific project requirements for short-circuit current limitation or system coordination. This is a common customization. -
What is the typical delivery lead time for a 1000kVA unit?
Lead time depends on order quantity and customization level. For standard specifications, production typically takes 4-6 weeks after order confirmation. We provide accurate timelines upon receipt of your detailed requirements. -
What after-sales support and warranty do you offer?
We provide comprehensive technical documentation and support. A standard warranty period covers manufacturing defects. Our team is available to assist with installation guidance and operational queries to ensure smooth commissioning. -
Are accessories like temperature indicators and protection relays included?
Yes, basic accessories such as a dial thermometer, silica gel breather, and pressure relief valve are standard. More advanced protective devices like Buchholz relays are available as optional extras to enhance system safety. -
Do you offer different vector groups, and what is the common default?
Yes, we offer various vector groups including Dyn11 and Yyn0. Dyn11 is commonly used for its ability to supply a neutral for three-phase four-wire systems and handle unbalanced loads effectively. We can produce according to your system design specification.
Choosing Jinhua Dika means partnering with an established manufacturer whose products reach diverse global markets from North America to Southeast Asia and Africa. Our annual export value and dedicated team of 11-50 professionals reflect our capacity and commitment to international standards. We ship from major ports like Shanghai, Tianjin, Guangzhou, and Ningbo, ensuring reliable logistics. This transformer embodies our expertise—a reliable, efficient, and durable power solution built with 100% copper for superior performance. Contact us today to discuss how this 1000kVA transformer can enhance the reliability and efficiency of your power distribution network.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Annual Export Value
US$1 Million - US$1.5 Million
Total Employees
11 - 50 People
Product Certifications
HACCP, TL900, QS9000, SA8000, ISO9001, ISO9004, ISO17799, ISO9000, ISO14000, ISO10441, ISO16949, TS16969, ISO19011:2000, OHSAS18001, Others
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