Solar Photovoltaic Wind Power Substation

Solar Photovoltaic and Wind Power Substation Overview

This solar photovoltaic and wind power substation is specifically designed for new energy power generation systems, including photovoltaic and wind applications. It integrates the transformer room, high-voltage room, and low-voltage room into a compact substation structure, providing a complete and reliable solution for renewable energy power transmission and distribution.

The transformer room and high- and low-voltage rooms are arranged in a rectangular layout, which optimizes internal space utilization and improves operational safety. Unlike traditional designs, the high-voltage fuses and load switches are relocated from inside the transformer tank to an independent high-voltage room, significantly enhancing maintenance accessibility and operational reliability.

Transformer Structure and Capacity Range

The transformer adopts an external oil storage tank structure, allowing the oil level to be visually inspected at a glance. This design simplifies oil filling and draining operations and improves overall maintenance efficiency. The external transformer configuration also provides greater convenience for inspection, servicing, and long-term operation.

The substation supports an extended capacity range up to 6300kVA, making it suitable for medium- and large-scale photovoltaic power plants and wind farms. Its robust structural design ensures stable performance even under high load and fluctuating generation conditions.

Protection Level and Environmental Adaptability

The transformer oil tank is designed with a protection level of IP68, ensuring excellent sealing performance and resistance to water ingress. The high-voltage and low-voltage rooms feature an IP54 protection level, providing effective protection against dust, moisture, and harsh outdoor environments.

Thanks to its high protection ratings, this photovoltaic and wind power substation can operate reliably in a wide range of complex and demanding environments, including coastal areas, high-humidity regions, and severe weather conditions.

Environmental Operating Conditions

The substation is suitable for installation at altitudes below 4000 meters. It is designed to operate within an ambient temperature range of -45°C to +45°C, meeting the requirements of both cold and hot climate regions.

The pollution level is classified as Class III. Relative humidity requirements specify that the daily average humidity should not exceed 95%, and the monthly average humidity should not exceed 90%. If operating conditions exceed these limits, technical consultation with the manufacturer is recommended.

Applicable Standards and Compliance

This solar photovoltaic and wind power substation is designed and manufactured in compliance with key national standards, including GB 1094 series standards for power transformers, covering general requirements, temperature rise, insulation levels, and short-circuit withstand capability.

It also complies with GB/T 11022 for high-voltage switchgear and control equipment, GB 7251.1 for low-voltage assemblies, and GB 50150 for electrical equipment installation and handover testing, ensuring safe, standardized, and reliable operation throughout its service life.

Primary Single-line Diagram  (typical scheme)

Structure And boundary Dimensions

1.Low voltage switchgear                       3.Transformer                        5.High voltage bushing                           7.Cable clamp bracket

2.Insulated busbar frame                      4.Oil conservator                   6.Vacuum load switch                              8.Post insulators