Product Overview
The 3150kVA power transformer is a mainstream medium-to-large capacity power distribution/transmission equipment. It is mainly used for 10kV/35kV power grid voltage transformation and has advantages such as energy saving, reliability and weather resistance. It is widely used in industrial, power grid, and new energy power plant scenarios.
The 3150kVA power transformer adopts a high-permeability grain-oriented silicon steel core and high-purity oxygen-free copper windings, combining the advantages of high efficiency, energy saving, safety, and reliability. It features low no-load and load losses, an efficiency of ≥99%, noise level ≤65dB, and strong short-circuit withstand capability. Employing a fully sealed structure, it is equipped with multiple protection devices such as gas relays and pressure relief valves to slow down oil aging. Suitable for environments ranging from -30℃ to +45℃ and altitudes ≤1000m, it exhibits excellent outdoor weather resistance. Its mature structure, ease of maintenance, and service life of over 30 years make it ideal for outdoor use.
Product Advantages
- Fully sealed structure, leak proof, maintenance free, and ensures stable and reliable long term operation.
- Oil immersed insulation and heat dissipation provide strong overload capacity and adaptability to harsh outdoor environments.
- Low loss and high efficiency significantly reduce operating energy consumption and operating costs.
- Compact structure, small footprint, easy installation, and strong adaptability.
- High cost effectiveness, long service life, and lower overall operation and maintenance costs.
- Short circuit resistant and impact resistant, meeting the requirements for long term continuous load operation.
Technical Specifications
|
Parameters |
Technical Specifications |
|
Model |
Power Transformer |
|
Rated capacity |
3150kVA (customizable upon request) |
|
Input voltage (high voltage) |
6.6kV,10kV,11kV,20kV,35kV(Customization available upon request) |
|
Output voltage (low voltage) |
0.38kV,0.4kV(Customization available upon request) |
|
Voltage regulation range |
±5%,±2×2.5%(Customization available upon request) |
|
Number of phases |
Three phase (single phase can also be specified) |
|
Frequency |
50Hz/60Hz |
|
Link Group |
Dyn11,Yyn0,Yd11,Dyn5(Customization available upon request) |
|
Winding material |
Copper / Aluminum |
|
No load loss |
Meets national standards / IEC Level 1 / Level 2 energy efficiency |
|
Load loss |
Meets national standards / IEC Level 1 / Level 2 energy efficiency |
|
No load current |
Standard design values, low loss optimization |
|
Temperature rise limit |
≤60K (oil top layer) |
|
Short circuit impedance |
Customization available upon request |
|
Cooling method |
ONAN(Oil immersion and self cooling) |
|
Insulation class |
Grade A |
|
Partial discharge |
≤20pC (Standard requirement) |
|
Implementation Standards |
IEC,GB,JIS,ANSI,IEEE,UL |
Regarding Union Power
Since 2011, we have shipped transformers to numerous countries and regions worldwide. As a reliable partner, we offer custom transformer designs, OEM services, and one‑stop power solutions. Our range includes step‑down, three‑phase, and miniature transformers – meeting diverse project requirements.
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