Power Compact Box Substation 35KV

The 35kV Power Compact Box Substation is a prefabricated, modular, and integrated power distribution solution designed for 35kV voltage level. It integrates high-voltage switchgear, distribution transformer, low-voltage distribution panel, reactive power compensation device, metering unit, and intelligent monitoring system into a fully enclosed, weatherproof steel enclosure. Factory pre-assembled and tested, it enables fast on-site installation, minimal civil work, and reliable performance for diverse power supply scenarios.
Key Features
Compact & Modular Design: Space-saving structure (only 1/3 footprint of conventional European-style substations), with separate compartments for HV, transformer, and LV sections for easy maintenance.
Full Safety Protection: IP4X-rated enclosure, fully insulated & sealed design, five-prevention interlock system, and lightning/overvoltage protection to ensure operator safety and equipment reliability.
High Efficiency & Low Loss: Equipped with energy-efficient transformer (losses lower than S9 type) and optimized power distribution components, reducing operational costs.
Smart Monitoring: Integrated IEC 61850-compliant intelligent terminal supports real-time monitoring, local/remote control, and data transmission for predictive maintenance.
All-Weather Durability: Corrosion-resistant steel shell (20-year service life), fire/heat insulation, and industrial air conditioning/dehumidification system for stable operation in -25°C to +40°C environments.
Fast Deployment: 100% factory prefabricated; on-site installation and commissioning completed within 7 days, 50% less investment than traditional substations.
Technical Specifications

Applications
Widely used in photovoltaic/wind power plants, urban distribution networks, industrial parks, mining, rural grid upgrading, and temporary power supply projects.