Pre-Assembled Containerized MV Substations

Property Specification

Type: Containerized Pre-Assembled Medium-Voltage Step-Up Substation

Features: Designed for maximum space efficiency and high power density, this compact step-up power center delivers secure, highly efficient voltage transformation tailored for utility-scale solar installations. Factory-integrated inside a standard 20-foot shipping container, the unit houses medium-voltage switchgear, a step-up transformer, and low-voltage switchgear for rapid transport and effortless site positioning. Its modular, plug-and-play architecture streamlines maintenance access while facilitating fast grid synchronization. Engineered to withstand challenging ambient conditions,

Applications: Utility-scale solar power generation plants, large ground-mounted solar arrays, grid-tied commercial solar installations, and harsh-environment renewable energy sites demanding modular, factory-tested medium-voltage step-up solutions.

Description

Technical Parameters

Technical Parameter / Feature 9100 kVA Substation
Rated Apparent Power (@ 40°C) 9152 kVA
Transformer Configuration Oil-Immersed (ONAN)
Vector Group / Winding Connection Dy11 – y11
Low-Voltage / Medium-Voltage Range 0.8 / 20 – 35 kV
Max Input Current at Rated Voltage 2 × 3302 A
Transformer Peak Efficiency ≥99%
Short-Circuit Impedance 9.5% (±10%)
MV Switchgear Voltage / Rated Current 24.0 – 40.5 kV / 630 A
LV Main Air Circuit Breaker (ACB) 4000A / 800Vac / 3P (2 pcs)
LV Branch Molded Case Breakers (MCCB) 320A / 800Vac / 3P (26 pcs)
Surge / Overvoltage Protection AC Type I + II
Operating Thermal Envelope -25°C to +55°C (>40°C derating)
Enclosure Ingress / Corrosion Rating IP54 / C4H (Optional: C5M)
Total Assembly Mass < 25 tonnes