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Unit Substation

CEEG's Unit Substations (6 kV–35 kV) combine HV switchgear, transformer, and LV switchgear in one modular enclosure with IP33/IP54 protection. Widely applied in ESS, PV, wind farms, mining, urban distribution, and more scenarios with reliable, customizable, and intelligent power solutions.

  • Prefabricated Substation Unit
    The CEEG containerized electrical substation integrates high-voltage switchgear, distribution transformer, and low-voltage switchgear, suitable for both indoor and outdoor use. The packaged substation features strong integration, a small footprint, low investment, and easy installation and maintenance. Rated voltages: 6KV, 10KV, 35KV. Enclosure protection ratings: IP54, IP33, with custom solutions available for special requirements.
  • Integrated PCS + Step-Up Transformer Substation for ESS
    Turnkey Solution
    Combines transformer, PCS, and switchgear in a factory-tested, ready-to-install unit housed in a container.  Built for Harsh Environments,  high reliability and safety,  lower investment & higher return. Supports cast resin/VPI dry-type or oil-immersed transformers. HV side voltage from 6kV to 35kV, DC side up to 1500VDC. Single-unit capacity up to 10MW.
  • PV (Photovoltaic) Prefabricated Substation
    To reduce the overall cost of solar power plants and improve efficiency, CEEG introduces a complete photovoltaic substation composed of grid-connected inverters, transformers, high and low-voltage switchgear, and cabinets. This 50Hz 0.4-35KV three-phase AC PV system offers DC distribution, inversion, step-up, monitoring, and communication functions. It serves as a perfect alternative to the traditional "inverter room + step-up station," making it ideal for both distributed and centralized power generation.
  • Wind Farm Step-Up Unit Substation
    The equipment is a special device that increases the 0.6-0.69kV voltage generated by wind turbines to 10kV or 35kV before connecting to the grid for output. It features: 
    Various structure types and strong weatherability
    Adapt to the local climate and environment
    Energy saving, environmental protection, safety and reliability
  • Intelligent Containerized Substation (E-House)
    The CEEG prefabricated containerized substation (e-house) is a modular and combinable electrical equipment solution. It includes transformers, high-voltage switchgear and control equipment, low-voltage switchgear and control equipment, internal wiring, metering, compensation, arresters, and other auxiliary equipment, all configured within a common enclosure or set of enclosures. This complete substation is tested and commissioned according to relevant standards. Various enclosure options are available, including non-metallic and containerized types.
  • Pad Mounted Substation
    The CEEG pad-mounted substation transformer integrates the high-voltage unit, distribution transformer, and low-voltage unit. The simplified configuration of the high and low voltage units makes it smaller in size and lower in cost compared to a prefabricated unit substation, and it does not have issues with heat dissipation. Transformers can be customized to customer requirements, including dry-type, oil-type, and amorphous alloy transformers.
  • Mining Flameproof Transformer Substation
    CEEG's mining flameproof transformer substation consists of a high voltage vacuum switch or high voltage load switch, a dry type transformer, and a low voltage protection box or low voltage feed switch. It is designed to provide stable power in environments such as mines and tunnels where there is a risk of explosion due to methane mixed gas and coal dust, but no gases or vapors that corrode metals or damage insulation.

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