10kV 12kV 35kV transmission substation outdoor combined electrical compact substation

Product Overview

The Compact Secondary Substation (CSS) is a highly integrated outdoor power facility, enclosing medium-voltage (MV) switchgear, distribution transformers, low-voltage (LV) switchboards, and auxiliary equipment within a single protective enclosure. It supports power conversion from 10-35kV MV input to 0.4kV LV output. Featuring modular design with arc-test certified components, its enclosure meets IP54+ protection standards, allowing direct installation in public-access areas like communities and commercial parks.

Type-tested for insulation strength and short-circuit withstand capability, the CSS incorporates an arc protection system and intelligent monitoring modules for remote condition surveillance. It completes full-process power conversion from high-voltage intake to low-voltage distribution in a compact footprint, delivering safe and reliable end-point power solutions for urban distribution networks.

Feature

• Highly Integrated：Combines MV switchgear, transformer, and LV panel in a single enclosure, reducing footprint by 40%-60%. Directly converts 10-35kV to 0.4kV in one compact unit.

• Modular Expandability：Standardized design with MV/transformer/LV compartments. Capacity adjustable from 500-2000kVA. Easy upgrades via module replacement.

• Robust Safety Protection:IP54+ enclosure, arc-tested components, 42kV 1-minute AC withstand voltage, 31.5kA short-circuit tolerance.

• Smart Monitoring:Real-time oil temperature/load monitoring. RS485/Ethernet interfaces for remote fault alerting.

• Safe & Eco-Friendly:Noise reduction ≤55dB, landscape-friendly enclosure, anti-shock design compliant with IEC 62271-200.

• Energy-Efficient & Reliable:Low-loss silicon steel core reduces no-load losses by 30%. MTBF exceeds 100,000 hours.

• Rapid Installation：Prefabricated for 50% shorter on-site setup. Flexible deployment on slopes, narrow spaces.

Technical Parameters