• High-Efficiency 10kV Oil-Immersed Three-Phase Double-Winding Non-Excitation Voltage Regulating Distribution Transformer
  • High-Efficiency 10kV Oil-Immersed Three-Phase Double-Winding Non-Excitation Voltage Regulating Distribution Transformer

High-Efficiency 10kV Oil-Immersed Three-Phase Double-Winding Non-Excitation Voltage Regulating Distribution Transformer

Enhance your grid reliability with our premium 10kV distribution transformer. 
Designed for modern power systems, this electrical distribution transformer utilizes advanced electromagnetic induction technology to provide stable AC power to end-users.

Our power distribution transformer features a fully sealed, maintenance-free design with a corrugated tank structure. By integrating high-permeability core materials and oxygen-free copper windings, we deliver a power and distribution transformer solution that minimizes energy loss, reduces noise, and ensures environmental safety. 

Whether for research institutes, commercial buildings, or industrial facilities, these transformers distribution units provide the stability and durability required for high-demand environments.

  • High-Efficiency 10kV Oil-Immersed Three-Phase Double-Winding Non-Excitation Voltage Regulating Distribution Transformer

Description

Key Features & Advantages

Our distribution transformers are engineered for excellence, featuring: 

Advanced Core Design

Utilizing new high-permeability materials and a full-slant seven-seam structure for uniform magnetic distribution and significantly lower no-load loss.

Superior Winding Craftsmanship

High and low voltage windings use high-quality oxygen-free copper and multi-layer cylindrical structures for maximum conductivity.

Superior Thermal Management

The electrical power distribution transformers include axial oil passages to optimize flow to high-temperature zones, paired with beautiful, compact corrugated radiators.

Maintenance-Free "No-Core-Lifting" Structure

Special anti-vibration fastening and a three-point positioning system eliminate the need for core inspection upon arrival, saving time and costs.

Eco-Friendly Sealing

High-strength steel tanks with the latest acrylate sealing gaskets prevent oil leakage and prevent environmental pollution.

Flexible Voltage Regulation

Equipped with non-excitation tap changers (off-circuit) with a range of 10±2×2.5%KV to ensure output stability.

Specifications & Parameters

This distribution transformer series strictly adheres to international and national standards including GB1094 and GB/T6451.

Category    Specification / Description 
Type Oil-Immersed, Three-Phase, Double-Winding
Rated Voltage Primary: 10kV / Secondary: 0.4kV (Customizable)
Tapping Range non-excitation tap changers (off-circuit) 10±2×2.5%KV
Frequency 50 Hz / 60 Hz 
Connection Group Dyn11 / Yyn0, or per customer requirement
Regulation Type Non-excitation (Off-circuit) Voltage Regulation
Cooling Method ONAN (Oil Natural Air Natural)
Core Material High-permeability Silicon Steel
Winding Material 99.9% Pure Oxygen-free Copper
Ambient Temperature -25°C to +40°C


Key Performance Data (Example for 10kV Series)


The table below illustrates the tiered efficiency levels for the 10kV series. Please contact us for the complete datasheet covering all voltage classes and ratings.

 10kV Oil-Immersed Three-Phase Non-Excited Tap Distribution Transformer Loss Table

Rated Capacity (kVA) Efficiency Level 1 

Efficiency Level 2

Efficiency Level 3

short-circuit impedance%
No-Load Loss(W)  Load Loss (W)  No-Load Loss(W)  Load Loss (W) No-Load Loss (W)  Load Loss (W)  
630 460 4460 510 4960 570 6200 4.5
800 560
5400 630 6000 700 7500 4.5
1000 665 7415 745 8240 830 10300 4.5
 ... ... ... ... ... ... ...  
2500 1280 13360 1440 14840 1600 21200 5.0


Packaging, Warranty & Certifications
 Packaging:
Export-standard reinforced steel frames or sea-worthy wooden crates designed to withstand vibration and tilt during international transit.

 Warranty:
We provide a comprehensive 12-18 months quality guarantee and lifetime technical support.

 Quality Certifications:
Fully compliant with GB1094 and GB/T6451.
ISO 9001:2015 Quality Management System certified.
CE & IEC or other standards compatible for global distribution. 


 Testing:
Full type-test and routine-test reports provided.
Pre-filled with high-grade insulating oil; "No-Core-Lifting" design allows for immediate installation upon delivery.