Outdoor Modular Box Type Substation IEC Standards Electric Transmission

The YBF-35 series (often referred to as the "European-style" or "Special" Box-type Substation) is a dedicated step-up solution designed for the renewable energy sector. It serves as the critical link between the low-voltage output of PV inverters or wind turbines and the 35kV medium-voltage grid.

Unlike standard distribution substations, the YBF series is engineered to handle the intermittent load cycles and harmonics inherent in solar and wind power generation. Its compact, prefabricated design allows for rapid deployment in remote locations—from high-altitude wind farms to desert-based solar plants.

• Renewable-Specific Design: Internal components are optimized to manage the fluctuating power output of renewable sources, ensuring minimal core losses and high efficiency.

• Rugged "Box-Type" Enclosure: Built with double-layer ventilation structures and high-grade anti-corrosive materials (Stainless steel, Aluminum alloy, or GRC). It offers IP54-rated protection against sand, salt spray, and extreme UV exposure.

• Modular Three-Zone Isolation: The unit is strictly divided into the High-Voltage Room (35kV), Transformer Room, and Low-Voltage Room. This physical separation ensures operational safety and prevents fault propagation.

• Smart Monitoring (IoT Ready): Supports remote telemetry and signaling (four-remote functions), allowing operators to monitor temperature, pressure, and electrical parameters from a central control room.

• Environmentally Adaptable: Features specialized cooling paths and optional heating elements for stable operation in temperatures ranging from -40°C to +55°C.

1.  Large-Scale PV Power Plants: Direct step-up from 0.4kV/0.8kV inverter outputs to 35kV collection lines.

2.  Onshore Wind Farms: Compact footprint allows installation at the base of wind turbine towers.

3.  Industrial Microgrids: Balancing renewable inputs with traditional grid power for high-demand factories.

4.  Remote Energy Storage: Serving as the interface for BESS (Battery Energy Storage Systems) units.

• Turnkey Integration: We provide a fully assembled, tested, and commissioned "Plug-and-Play" unit, significantly reducing on-site civil work and installation time.

• Component Flexibility: Choose your preferred internal switchgear and breakers from global brands like Schneider, ABB, or Siemens, or select our high-performance cost-effective domestic alternatives.

• High Short-Circuit Withstand: Engineered to withstand the high fault levels common in utility-scale renewable grids.

• Factory-Direct Export: We handle the complex logistics and international standards compliance (IEC) required for global project delivery.

Q: Can the secondary voltage be customized for specific inverters?

A: Yes. We frequently manufacture units with 0.6kV, 0.66kV, or 0.69kV secondary sides to match the specific AC output of utility-scale string or central inverters.

Q: How do you handle heat dissipation in desert environments?

A: We utilize a "Sand-Proof" ventilation design with automatic temperature-controlled fans and a double-layered roof that creates a natural air chimney effect to keep the transformer cool.

Q: What is the typical lifespan of the enclosure?

A: With our specialized anti-corrosion coating (C4 or C5-M standard), the enclosure is designed for a service life of over 30 years in outdoor environments.

This series of intelligent box substation is by the high voltage unit, power transformer, low voltage unit, measurement unit and intelligent system, optimize the combined into a complete intelligent power supply complete sets of equipment, its function, wide use, more safe and reliable operation, nice appearance, and has convenient installation, covers an area of less, less maintenance, less investment, quick effect, long service life, etc. It can be used as transformer and distribution equipment for urban buildings, residential areas, municipal facilities, factories, mines, highways, wharves, oil fields and temporary electricity departments and places.