Whatsapp
For industrial, commercial, and utility applications requiring reliable and efficient voltage conversion from medium to low voltage, the 11kV to 0.4kV step-down transformer is a critical component in your power distribution network. Engineered for robust performance and long-term durability, our transformers are designed to seamlessly integrate into existing systems, ensuring a stable and safe power supply for end-user equipment. Whether you are retrofitting an old facility or powering a new development, the choice of transformer is paramount. We specialize in high-performance Step Down Transformers, with a particular focus on the 11kV To 0.4kV oil type Transformer. This specific model, a premier example of our Step Down oil type Transformers, utilizes advanced mineral oil for superior insulation and cooling, making it exceptionally suitable for outdoor installations and environments demanding high overload capacity. Our commitment is to deliver a product that not only meets but exceeds industry standards for efficiency, safety, and total cost of ownership.
The core of our 11kV To 0.4kV Transformer is its meticulous construction and premium materials. The active part, comprising the core and windings, is constructed with high-grade, grain-oriented silicon steel for the core to minimize no-load losses, and electrolytic copper for the windings to ensure optimal conductivity and thermal performance. This transformer is fully compliant with international standards such as IEC 60076, ensuring reliability and interoperability. Key operational parameters are detailed in the table below, highlighting the technical specifications that define its performance envelope.
| Rated Capacity (kVA) | No-Load Loss (W) | Load Loss at 75°C (W) | No-Load Current (%) | Impedance Voltage (%) | Dimensions (LxWxH) approx. mm | Weight (Oil) approx. kg |
|---|---|---|---|---|---|---|
| 100 | 190 | 1500 | 1.5 | 4.0 | 1200x800x1300 | 650 |
| 315 | 430 | 3650 | 1.2 | 4.0 | 1600x1000x1600 | 1250 |
| 630 | 720 | 6200 | 1.0 | 4.5 | 2000x1200x1900 | 2100 |
| 1000 | 1000 | 10300 | 0.9 | 5.0 | 2300x1400x2200 | 3200 |
| 1600 | 1400 | 14500 | 0.8 | 6.0 | 2600x1600x2500 | 4500 |
Every 11kV To 0.4kV Transformer is fitted with a conservator tank with a silica gel breather to prevent moisture ingress, a Buchholz relay for internal fault protection, and a pressure relief device for safety. The robust, welded steel tank is treated with anti-corrosion paint, and bushings are of high-quality porcelain or composite polymer. For ease of installation and maintenance, lifting lugs, rollers, and an earthing terminal are provided as standard. Customization options include alternative tap changers (off-circuit or on-load), special bushings, different oil types (including biodegradable options), and specific paint finishes to suit harsh environmental conditions.
