Oil-immersed Distribution Transformer-High Voltage 110KV-132KV

Product Application

Its voltage level is suitable for the transmission and distribution links of regional power grids. And it is widely used in the fields of power transmission, industrial production, urban power supply, etc., such as power supply for industrial parks, energy mining sites like oilfields and coal mines, and transportation hubs such as large railway stations and airports. Engineered for optimal energy conversion efficiency and safety, it guarantees a stable, reliable power supply that adapts to diverse operational requirements.

Product Advantages

Enhanced Short-Circuit Tolerance

The 110KV-132KV transformer has obtained national-level certification.It is specifically engineered to resist and mitigate short-circuit impacts, safeguarding the electrical system's safety and stability. 

Low Energy Loss Design

Leveraging advanced design principles and premium materials, this transformer minimizes power dissipation, boosting energy efficiency and cutting operational costs.The no-load loss is specified to be 15%-20% lower than the current national standard GB 6451-2008, while the load loss is 5% lower than the current national standard GB 6451-2008.

Quiet Operational Performance

Its innovative structural design and components reduce operational noise levels, creating a quieter working environment for surrounding areas.

Dependable Long-Term Operation

Through rigorous testing protocols and strict quality control, the transformer ensures consistent performance—ideal for applications requiring 24/7 continuous operation.

Product Features

Core Material and Structure

• The transformer core is made of high-quality silicon steel sheets, stacked in a multi-stage ladder configuration. It features low loss, low noise, and strong short-circuit resistance.

Wide Application and Recognition

• Widely used in substations and power plants, the product has won unanimous praise from users. Our SZ11-40000/110KV-132KVon-load tap-changing power transformer passed the joint appraisal by the National Ministry of Machinery and Ministry of Electricity .

Tank Design

• Bell-type oil tank with bent corrugated wall structure, enhancing mechanical strength while ensuring an elegant appearance.

Core Structure

• Unique design with D-type yoke and 45° miter joints.
• Full-directional positioning between the core and tank ensures impact resistance during transportation.

Winding Design

• Coils adopt an internal-external brace structure, with high-strength hard paper tubes used between coils and between coils and the core to enhance short-circuit impact resistance.

Advanced Manufacturing Processes

• Employed processes include cold-pressure welding, group assembly of coils, and hard paper tube machining, among others.

Normal service conditions

Altitude

No more than 1000m;

Environmental temperature:

The maximum temperature is+40℃;

The maximum monthly average temperature is +30℃;

The maximum annual average temperature is +20℃;

The outdoor minimum temperature is -25℃。

The waveform of power supply voltage is similar to sine wave.

For three-phase transformer,its three-phase supply voltage should be approximately symmetrical. Installation environment:

There is no obvious pollution in the installation envionment;

The ground  acceleration ag  caused by earthquake is lower than 3m/s²in the horizontal direction and 1.5m/s² in the vertical direction.

Executive standard

GB/T1094.1    GB/T1094.2     GB/T1094.3     GB/T1094.5

GB/T25289     GB/T6451        GB/T7595        GB20052

JB/T3837       JB/T10088        IEC60076

The transformer products produced by our company all meet the latest version of the above   standards.

Special Conditions of Use

Any special use conditions that need to meet the normal use conditions of the transformer shall be stated in the inquiry and order.

Ordering instructions

When ordering,the product model,rated capacity,rated voltage of high and low voltage,high voltage distribution range,phase number,frequency,connection group label,etc.shall be provided.

110kV Class 6300~63000/110 Oil-Immersed Three-Winding No-Excitation Voltage Regulating Power Transformer