Compact Transformer

Wind Turbine Integrated Box Type Step Up Substation

ZGS-ZF- -/35 combined transformer station includes step up transformer, high voltage current- limiting fuse, load switch and LV switch and corresponding axiliary device. Wind power box type bootster station generates electricity 0.69kV wind turbine voltage increasing to 35kV, transmitting the 35kV voltage by the cable, which is ideal for wind power generation system. Contact our box type substation supplier now.

Wind Turbine Integrated Box Type Step Up Substation (1).jpg

Scope of Application

Onshore Large Wind Farm

Suitable for land-based megawatt wind farms with scattered wind turbine layout and long-distance power collection.

Coastal Offshore Wind Project

Adopts heavy anti-salt-spray cabinet coating to resist high humidity, sea fog and corrosive coastal climate.

Plateau Distributed Wind Turbine Base

Customized low-temperature and high-altitude adaptation design for cold mountain and windy desert areas.

Product Description

1 - Sealed, safe and reliable, adopting the latest S9/35kV series technology, reasonable structure, high relibility.
2 - Small size, compact structure, the volume is 1/3 of the ordinary of preinstalled substation, which reduce the footprint.
3 - Strong ability of overload.
4 - Special process, two operations of paint treatment, as well as good corrosion resistance, can prevent the erosion efectively.
5 - High ignition point insulation oil can be offered as per the requirement to eliminate fire hazards.

product details

product description

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Product Features

Rich and Reasonable Layout

Photovoltaic, wind power box type booster station, the system layout is reasonable, compact, including low-voltage inlet cabinet, transformer in wind turbine and high-voltage outlet cabinet three parts, respectively installed in three separate rooms, "eye" font or "L" font layout, function is perfect, easy to maintain; Telecontrol devices and power transformers are installed in the low-voltage room to realize telecontrol control of box transformer and self-supply of box transformer, so as to meet the requirements of photovoltaic and wind power generation systems.

High Safety

When the transformer radiator is installed in an open type, it realizes the completely natural ventilation cooling performance, saves a lot of power loss caused by forced ventilation, and eliminates the defect that the fan performance brought by forced ventilation is unreliable and easy to overtemperature tripping. In addition, the charged body is completely sealed in the box transformer to solve the dust protection problem. "Five prevention" function is complete, operation and maintenance is convenient, according to the need to meet the requirements of maintenance and repair in rainy days.

Small Space

The high voltage load switch is installed in the transformer oil tank, and the box transformer is arranged in the shape of "L" and "eye". The low voltage room is equipped with telecontrol device and power transformer to realize the telecontrol control of the box transformer and the box transformer self-supply. Because there is no transformer room, the machine occupies a relatively small area, the machine cost is lower, and the user investment is reduced.

Easy to Replace

"According to the 'mu' font layout, remote devices are set up in the low-voltage room together with our Chinese transformer to realize remote control of the box-type transformer and its power supply. The isolation knife switch of the 35kV high-voltage switchgear is placed in a separate room with the fuse assembly, which solves the problem that the entire circuit needs to be cut off when replacing the fuse or arc extinguisher in conventional switchgear."

Main parameters

Rated Voltage & Capacity: 0.4kV/10.5kV, 0.4kV/35kV; capacity range 500kVA to 31500kVA customizable

Cooling Mode: ONAN natural oil cooling, optional ONAF forced air cooling for high load operation

Protection Grade: Cabinet IP54, transformer tank fully sealed to prevent moisture and dust intrusion

Communication Protocol: Standard Modbus RTU/TCP, IEC61850 compatible with new energy intelligent management system

Execution standards

IEC 60076

International standard for oil immersed power transformers

IEC 62271

High voltage switchgear and control assembly standard

IEC 61439-8

Low voltage distribution equipment standard for photovoltaic systems

GB/T 19964

Chinese national technical specification for photovoltaic power station grid connection

Technical advantages

Hanzhong Xinsanhuan Transformer Co., Ltd. possesses significant competitive advantages in the field of wind power box-type substations. Backed by extensive technical expertise and comprehensive industry certifications—including CE marking, energy-saving certification, and national-level type testing—we offer products of proven quality that you can fully trust. We have accumulated a wealth of project experience through long-term partnerships with major energy enterprises, supplying complete equipment sets to wind farms across China and in countries such as Russia and Chile. Recognizing that wind power projects are often situated in harsh environments—such as high-altitude or coastal regions—we have engineered our products with enhanced sealing and corrosion resistance (achieving an IP54 protection rating) to ensure reliable long-term outdoor operation. Furthermore, through the continuous optimization of core materials and electromagnetic designs, we effectively minimize losses and maximize wind energy utilization efficiency. Please feel free to contact us at any time.