YB Series Prefabricated Substation

Detailed Technical Specifications

    The table below summarizes the key technical parameters of the YB series prefabricated substation, primarily categorized based on rated voltage levels (12kV and 40.5kV).

    Note: The above parameters are common values for the series. Specific values may vary depending on the manufacturer, specific model (e.g., YB, YBM, YB6), and configuration. Please refer to the actual order contract and technical agreement.

Key Product Features

1.Integration and Compact Design

    Integrates high-voltage power reception, transformer step-down, and low-voltage distribution functional modules tightly within one or several anti-rust, anti-corrosion enclosed enclosures, forming a complete substation system.

    Adopts layouts like "Line" type or "Triangular" type, featuring a compact structure and a footprint significantly smaller than traditional civil substations (can be reduced by 80%-90%), effectively saving land resources and potentially simplifying approval procedures.

    High degree of factory prefabrication significantly reduces on-site installation and commissioning work, shortening the construction period.

2.Structure and Environmental Adaptability

    Diverse Enclosure Materials: Often uses stainless steel plate, composite plate, aluzinc-coated plate, aluminum alloy plate, or metal engraved plate, with special anti-corrosion treatment to withstand harsh outdoor environments and ensure long service life.

    Reasonable Internal Layout: Typically divided into three separate compartments: High-voltage compartment, Transformer compartment, and Low-voltage compartment, isolated from each other, ensuring high safety and reliability.

    Temperature Control and Ventilation System: The transformer compartment is equipped with natural ventilation and forced ventilation systems (e.g., automatically controlled exhaust fans), and often includes thermostats and heaters for effective heat dissipation and condensation prevention, ensuring transformer operation at full load.

    Excellent Protection Performance: Doors, windows, and ventilation openings have dust-proof, anti-vermin, and anti-water seepage/leakage measures. The protection degree usually reaches IP33 or higher (e.g., IP54).

3.Electrical Performance and Safety

    High-Voltage Side: Can be configured with ring main units (e.g., HXGN series), using load switches (e.g., vacuum, SF6) or circuit breakers. Supports various modes like ring main supply, dual power supply, or terminal supply, and incorporates comprehensive "Five Prevention" mechanical interlocking functions to prevent misoperation, ensuring safety and reliability.

    Transformer: Options include oil-immersed transformers or dry-type transformers (e.g., SCB series), with a wide capacity range.

    Low-Voltage Side: Employs low-voltage switchgear assemblies. Can be configured according to user needs for multiple outgoing lines (using molded case circuit breakers, etc.), automatic reactive power compensation devices, energy metering instruments (HV or LV metering), and various protection and control units, offering complete functionality.

    Safety Design: The structure prevents easy access to live parts. Designs like pressure relief channels enhance safety.

4.Intelligence and Reliability

    Can be equipped with microprocessor-based comprehensive automation devices to achieve telemetry, teleindication, telecommand, teleregulation ("Four Tele") functions, integrating protection, measurement, and control, supporting unmanned operation mode.

    Monitors internal temperature and humidity, and automatically controls ventilation, heating, and other equipment to create a favorable operating environment.

Main electrical components are selected for reliable performance and mature technology, ensuring stable overall operation and low maintenance requirements.

Typical Applications

    Urban Power Grids: Urban distribution network construction and renovation, residential communities, high-rise buildings, commercial centers, parks.

    Industrial and Mining: Power distribution centers for industrial and mining enterprises, oil fields, docks.

    Infrastructure and Public Utilities: Airports, stations, highways, railways, tunnels, street lighting systems.

    Temporary Power Sites: Large construction sites, stadiums, temporary event venues.

    New Energy Field: Potential use at points of connection for distributed energy resources.

Operating Environmental Conditions

    Altitude: Typically ≤1000m (Special designs available for higher altitudes).

    Ambient Temperature: Typically -25℃ ~ +40℃ or -30℃ ~ +40℃.

    Relative Humidity: Daily average ≤95%, Monthly average ≤90% (at +25℃).

    Wind Speed: Typically ≤35m/s.

    Installation Site: Places without severe vibration, explosion hazards, heavy pollution, or chemical corrosion. Installed on a flat and solid platform (e.g., concrete platform).

Optional Configurations

    High-Voltage Switch: Load switch (Vacuum, SF6, Puffer, Expulsion), Circuit breaker.

    Transformer Type: Oil-immersed transformer, Dry-type transformer.

    Low-Voltage Outgoing Scheme: Number of outgoing circuits, switch brands and models (e.g., Schneider, ABB, Chint), reactive power compensation capacity (kvar) can be customized.

    Metering Method: High-voltage metering or Low-voltage metering.

    Enclosure Material: Stainless steel, Composite plate, Aluminum alloy plate, Aluzinc-coated plate, Landscape type (cement with tiles) etc.

    Intelligence Level: Standard type or Intelligent type (with microprocessor protection, "Four Tele" functions).

    Special Purpose: Street light dedicated substation, Railway dedicated substation, Oil field containerized dedicated substation, Mobile substation, etc