10kV 10.5kV 11kV Compact Prefabricated Substations for energy infrastructure

  • 10kV 10.5kV 11kV Compact Prefabricated Substations for energy infrastructure
Key attributes
Brand Vziman
Model NO. 10kV 10.5kV 11kV Compact Prefabricated Substations for energy infrastructure
Rated voltage 11kV
Rated frequency 50/60Hz
Rated capacity 1250kVA
Series ZGS
Product descriptions from the supplier
Description

Compact Prefabricated Substations Product Description

Vziman Electric specializes in manufacturing Compact Prefabricated Substations with a primary voltage range of 6kV, 10kV, 10.5kV, 11kV, 20kV, 22kV, 24kV, 33kV, 35kV and 38.5kV, fully customizable to customer requirements. We also offer American Type Prefabricated Substations with the same voltage range, catering to diverse power distribution scenarios and structural design preferences.
Compact Prefabricated Substations (European-style) integrate high-voltage switchgear, low-voltage distribution panels, distribution transformers and enclosures into an integrated unit. American Type Prefabricated Substations feature a more highly integrated design, embedding high-voltage components directly into the transformer tank. Both are high-efficiency prefabricated power distribution equipment with unique structural advantages.
As a new-generation power supply and distribution device, Compact Prefabricated Substations and American Type Prefabricated Substations outperform traditional civil substations in multiple aspects. The former boasts a compact structure, small footprint and easy mobility, shortening construction periods, reducing land use and cutting infrastructure costs. The latter inherits the core advantages of compactness and portability, with simpler on-site installation, rapid commissioning and easy maintenance. Notably, both can be deployed deep into load centers, playing a key role in improving power supply quality, reducing energy loss and enhancing the reliability of power distribution network transformation. All products fully comply with GB/17467-2010 and IEC1330 standards, ensuring stable and compliant operation.
Compact Prefabricated Substations Main function
  • Both Compact Prefabricated Substations and American Type Prefabricated Substations are capable of completing core electrical energy operations including conversion, distribution, transmission, measurement, compensation, and system control. They also integrate comprehensive protection and communication functions, realizing real-time monitoring of equipment operating status, fault alarm, and remote control. For American Type Prefabricated Substations, the integrated design of high-voltage components and transformers further optimizes the protection response speed, while Compact Prefabricated Substations excel in flexible functional expansion due to their compartmentalized structure, both meeting the multi-dimensional operational needs of power distribution systems.
  • Compact Prefabricated Substations Structural feature:Compact Prefabricated Substations:It is mainly divided into three independent functional compartments: high-voltage room, transformer room, and low-voltage room, with clear functional zoning and convenient maintenance. The high-voltage room is fully functional, composed of a primary power supply system built with HXGN17-12 ring network cabinets, supporting multiple power supply modes such as ring network power supply, terminal power supply, and dual power supply, and can be equipped with high-voltage measurement elements as needed. Transformers can be selected from low-loss oil-immersed transformers (S11, S13 series) or dry-type transformers (SCB10 series) according to on-site conditions. The transformer room is equipped with an automatic forced air cooling system and lighting system to ensure stable heat dissipation and convenient maintenance. The low-voltage room can adopt panel or cabinet-mounted structures, customized into user-required power supply solutions, integrating functions such as power distribution, lighting distribution, reactive power compensation, and user energy measurement.
    American Type Prefabricated Substations:Adopting an integrated tank-type structure, it eliminates the need for separate high-voltage compartments by integrating high-voltage load switches, fuses, and transformers into a sealed oil tank. This design further reduces the overall volume compared to Compact Prefabricated Substations, with a more streamlined structure. The transformer room (integrated tank) is equipped with oil level, temperature, and pressure monitoring components, and the low-voltage room is independently arranged for flexible configuration of low-voltage distribution and measurement functions, balancing compactness and operational convenience.
 American Type Prefabricated Substations Product Features
  • Diversified Enclosure Materials, Strong Adaptability: Both Compact Prefabricated Substations and American Type Prefabricated Substations offer multiple enclosure material options, including aluminum alloy plates, stainless steel plates, composite plates, and glass fiber reinforced cement plates. Users can select materials based on environmental corrosion levels, ensuring long-term stable operation in different scenarios.
  • Sturdy Base Design, Reliable Structure: The base of Compact Prefabricated Substations is made of galvanized channel steel or cement, while American Type Prefabricated Substations adopt reinforced galvanized steel bases, both featuring strong corrosion resistance and sufficient mechanical strength to withstand outdoor environmental impacts and equipment operation loads.
  • Efficient Thermal Management, Stable Operation: The roof of Compact Prefabricated Substations adopts a double-layer structure, achieving excellent heat insulation, radiation protection, and ventilation effects; the top of the transformer compartment is equipped with an automatic exhaust device for temperature regulation. American Type Prefabricated Substations rely on the sealed oil tank’s heat dissipation performance and optional cooling fins, ensuring the transformer operates within a safe temperature range.
  • Independent Compartments & Humanized Configuration: Compact Prefabricated Substations use iron plates to separate each compartment into independent small chambers, each equipped with lighting facilities for convenient maintenance. American Type Prefabricated Substations optimize the internal layout to ensure safe isolation between high-voltage and low-voltage components, with built-in maintenance access ports for easy on-site operations.
  • Customizable Appearance, Environmentally Coordinated: The color of both Compact Prefabricated Substations and American Type Prefabricated Substations can be customized to match the surrounding architectural style and natural environment, making them suitable for urban, residential, and scenic area scenarios with aesthetic requirements.

Compact Prefabricated Substations environmental conditions

  • High ambient temperature: +40ºC
  • Low ambient temperature: -25ºC
  • The average temperature within a 24-hour period shall not exceed 30 °C.
  • Altitude: <1000m
  • The Criteria of Relative Humidity(RH): Daily mean RH would not be more than 95%; Monthly mean AH would not be more than 90%
  • Horizontal acceleration is not greater than 0.4 m/s2 and vertical acceleration is not greater than 0.2 m/s3.
  • Installation location: Install in a place free of fire, explosion hazard and chemical corrosive gas and well ventilated areas.
  • Inclination of installation location: not more than 5 degrees

Implementation standards

  • GB1094.1-2-2013 Power Transformer
  • GB/T6451-2015 Three-phase oil-immersed transformer technical parameters and requirements
  • GB1094.3-2017 Power Transformer

Product Parameters

Item Unit Argument
Rated voltage kV 10/0.4(high/low pressure)
Maximum operating voltage kV 12(high pressure side)
Rated frequency Hz 50
Rated capacity kVA 50-1600
1 minute power frequency withstand voltage kV 35
Lightning impulse voltage kV 75
Cooling mode   Oil immersed in self-cooling
High voltage backup fuse breaking current kA 50
Breaking current of plug-in fuse kA 2.5
Ambient temperature -35~+40
Coil allows temperature rise 65
No load voltage regulation   ±5% or ±2×2.5%
Noise level dB 50
Class of protection   IP43

Compact Prefabricated Substations additional Application Scenario

  • Compact Size Adapts to Rural Layout: Compact Prefabricated Substations can be flexibly installed in village open spaces, green belts, or beside power poles, occupying minimal land and avoiding conflicts with rural farmland and residential areas. American Type Prefabricated Substations have a smaller footprint, suitable for remote rural areas with limited installation space.
  • Low Construction & Maintenance Costs: The factory pre-assembled design of both types reduces on-site construction work and shortens the renovation period, which is crucial for rural areas with inconvenient construction conditions. Their maintenance-free or low-maintenance characteristics reduce the workload of rural power grid operation and maintenance personnel, adapting to the shortage of professional maintenance resources in rural areas.
  • Strong Environmental Adaptability: The corrosion-resistant enclosure and sealed structure of Compact Prefabricated Substations and American Type Prefabricated Substations can resist rural outdoor environments such as rain, dust, and temperature changes. Oil-immersed transformer configurations are suitable for rural open-air deployment, ensuring long-term stable operation without additional protective facilities.
  • Flexible Power Supply Matching Rural Loads: Rural power grids have the characteristics of small single-point load and scattered distribution. Compact Prefabricated Substations support multi-mode power supply, realizing flexible connection of scattered rural loads; American Type Prefabricated Substations are suitable for small-scale centralized load scenarios such as village committees and breeding bases, both matching the load characteristics of rural power grids.
  • Improve Power Supply Quality: Deploying Compact Prefabricated Substations and American Type Prefabricated Substations deep into rural load centers shortens the power supply radius, reduces line loss, and improves voltage stability, solving the problems of low voltage and unstable power supply in remote rural areas, and ensuring the normal use of agricultural machinery, household appliances, and breeding equipment.

Compact Prefabricated Substations product Photos

Documentation Resource Library
Vziman Transformer Substation selection catalog
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Vziman Transformer Substation selection catalog
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FAQ
Q: How do Compact Prefabricated Substations adapt to the diverse construction needs of energy infrastructure projects?
A:

For energy infrastructure with diverse construction scenarios and variable load demands, Compact Prefabricated Substations support full customization of core parameters such as transformer capacity, power supply mode and functional configuration, which can be flexibly matched with power grid upgrading, new energy grid connection and industrial energy supply projects. Meanwhile, American Type Prefabricated Substations with the same voltage range also support personalized customization, and their integrated structure is more suitable for rapid deployment scenarios of energy infrastructure such as temporary power supply and emergency energy guarantee.

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