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Containerized PV Substation
Pre-engineered medium-voltage integration for faster, smarter solar plant deployment
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Containerized PV Substation
Product Overview


The Containerized PV Substation is a fully integrated power conversion and distribution solution designed for utility-scale and commercial photovoltaic power plants. It combines the step-up transformer, medium-voltage switchgear, low-voltage switchgear, intelligent monitoring system, and auxiliary equipment in a standard containerized enclosure for fast deployment, simplified installation, and reliable long-term operation.

Engineered for efficiency, safety, and flexibility, the system steps up the low-voltage AC output from PV inverters to medium-voltage grid levels for efficient transmission and seamless grid connection.


The Containerized PV Substation is designed to step up inverter output voltage, typically 800 V AC, to medium-voltage levels such as 10 kV, 24 kV, or 35 kV.

Its integrated architecture helps reduce balance-of-system complexity while improving installation efficiency and overall system reliability.

With all major components assembled into a standard container platform, the unit offers a practical and scalable solution for modern solar power plants requiring rapid deployment, dependable performance, and simplified maintenance.

Product Highlights
Protection and Safety
Parameter Specification
Transformer Detection & Protection Oil level, oil temperature, oil pressure
Protection Degree of MV & LV Room IP54
Internal Arcing Fault of STS IAC A 20 kA 1s
MV Arc Releasing Upward arc releasing for higher safety
MV Relay Protection 50/51, 50N/51N
LV Overvoltage Protection Type I + II
Anti-corrosion Protection C5
General Data
Parameter 9000K 6000K 3000K
Dimensions (L × W × H) 6,058 × 2,438 × 2,896 mm 6,058 × 2,438 × 2,896 mm 6,058 × 2,438 × 2,896 mm
Weight < 28 t < 23 t <15 t
Operating Temperature Range -25°C to +60°C -25°C to +60°C -25°C to +60°C
Relative Humidity 0% to 95% non-condensing 0% to 95% non-condensing 0% to 95% non-condensing
Max. Operating Altitude 1,000 m 1,000 m 1,000 m
MV-LV AC Connections Prewired and pretested,
no internal cabling onsite		 Prewired and pretested,
no internal cabling onsite		 Prewired and pretested,
no internal cabling onsite
LV & MV Room Cooling Smart cooling without air-across
for higher availability		 Smart cooling without air-across
for higher availability		 Smart cooling without air-across
for higher availability
Communication Modbus TCP Modbus TCP Modbus TCP
Standards Compliance IEC 62271-202 IEC 62271-202 IEC 62271-202
Electrical Input
Item 9000K 6000K 3000K
Max. LV AC Inputs 32 24 12
AC Power 9,000 kVA @ 40°C 6,600 kVA @ 40°C 3,000 kVA @ 40°C
Rated Input Voltage 800 V 800 V 800 V
LV Panel Segregation Form 2b Form 2b Form 2b
LV Main Switches ACB (4,000 A, 2 × 1 pc) ACB (2,900 A, 2 × 1 pc) ACB (2,900 A, 1 × 1 pc)
LV Main Switches MCCB (320 A, 2 × 16 pcs) MCCB (320 A, 2 × 12 pcs) MCCB (320 A, 12 pcs)
Electrical Output
Item Parameter
Rated Output Voltage 10 kV to 35 kV
Frequency 50 Hz or 60 Hz
Transformer Type Oil-immersed, conservator type
Transformer Cooling Type ONAN
Transformer Tappings ±2 × 2.5%
Transformer Oil Type Mineral oil, PCB-free
Transformer Vector Group Dyn11-y11
Transformer Minimum Peak Efficiency Index Tier 1 or Tier 2 in accordance with EN 50588-1
RMU Type SF6 or SF6-free dry-air insulated
RMU Transformer Protection Unit MV vacuum circuit breaker unit
RMU Cable Incoming / Outgoing Unit Direct cable unit or cable load break switch unit
Auxiliary Transformer Dry-type transformer, 15 kVA, single-phase, i0
Auxiliary Transformer Output Voltage 400 / 230 Vac

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