New-Energy-Chinese-Box-Transformer-Substion

New Energy (Chinese Standard) Box Transformers

SH Power offers full life-cycle support for its transformers,covering solution design, model optimization, and on-site commissioning—all handled by our experienced technical team. We provide tailor-made solutions for various applications to ensure efficient operation and maximize energy savings.

Description

New energy (Chinese type) box transformer, or “Chinese transformer” for short. In many large photovoltaic and wind power projects, such as 35kV photovoltaic power generation projects, it is common to use such combined box transformers. Different from the two types of imported complete equipment, American and European transformers, Chinese box transformers have optimized design based on their characteristics and advantages to become more suitable for photovoltaic power generation plants.

Product features

Different from European transformers, Chinese box transformers have no transformer chambers, so that they occupy less land area; meanwhile, the incoming and outgoing line pattern of American transformers is adopted, having saved much copper material. Therefore, Chinese box transformers have less overall equipment cost than European transformers, requiring lower investment by users.
Use of busbar for connection between a high voltage switch and the transformer solves the safety problem present with cable connection.
Different compartments are designed for placement of the high voltage knife switch, the arc extinguishing chamber and the fuse, so that it is not required to shut down the whole line when replacing the fuse or the arc extinguishing chamber, and a single fan can be maintained without the need to stop other fans.
The Chinese box transformer is similar to American transformers in that it has the radiation fins installed in an exposed manner for fully natural ventilation. This reduces much electric energy loss and can also avoid over-temperature tripping that is likely to occur when fans fail to work properly in case of forced ventilation. By enclosing all live components inside, the box transformer also realizes dust-proofness.
With all these unique structural advantages, the Chinese box transformer can surely find its place in photovoltaic and other similar projects. Compared with European box transformers, the Chinese box transformer occupies less land area, and is more environment-friend and cost-effective.

Technical Parameters
Rated Capacity(kVA)	Primary Voltage(kV):	Secondary Voltage(kV):	Connection Symbol	Short-circuit Impedance(%)
1000	35±2×2.5% 37±2×2.5% 38.5±2×2.55%	0.4 0.48 0.55 0.63 0.69 0.8 1.14	Yd11 Dy11	6.5 7 8 9
1250
1600
2000
2200
2500
3150
3450
5500
6300
6900
10000
12500

Key Features

Comprehensive Product Range

Including oil-immersed, dry-type and packaged substation transformers to cover all voltage levels and application needs.

High Efficiency & Low Loss

Built with high-grade grain-oriented silicon steel and premium insulation systems for low no-load and load losses and outstanding energy savings.

Reliable Sealing & Insulation

Oil-immersed and packaged units offer superior moisture-proof, leak-proof and dielectric performance, guaranteeing long-term stability.

Precision Manufacturing

The entire process strictly follows national standards and ISO 9001 quality management system.

Custom Design Capability

Custom designs are available to match specific site conditions and load characteristics.

Durability & Safety

Robust construction incorporates overload and high-temperature protection functions.

Environment-Friendly

Compliant with RoHS and other environmental regulations—low noise, minimal losses.

Applications and Utility

Utility-Scale Power Generation and Transmission

Our 110kV and 220kV power transformers are widely used in power plants and transmission substations for efficient voltage transformation.

Renewable Energy Integration

We provide specialized solutions, including inverter and step-up integrated transformers, for renewable energy projects like solar farms and wind power plants.

Industrial and Commercial Distribution

Our dry-type and pad-mounted transformers are perfect for industrial facilities, commercial complexes, data centers, and high-rise buildings, providing safe and reliable power distribution.

Public and Residential Infrastructure

Our distribution transformers, including pole-mounted and pad-mounted types, are essential for urban and rural power grids, delivering electricity to homes and public facilities.