MV substations
Solis 9100 kW MV substation for 350K inverters
Solis-9100-MV is an ultra-high-power 9100 kW medium-voltage (MV) transformer substation developed to connect arrays of flagship Solis 350K inverters to the distribution networks of utility-scale solar power plants.
Models
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Overview
• Specially optimised for use with Solis 350K inverters to build ultra-high-capacity utility-scale solar power plants
• Record-breaking 9100 kVA rating that optimises field layout and reduces the number of transformer units
• Fully factory-assembled (Plug and Play) for faster installation and lower capital expenditure (CAPEX)
• High-efficiency, low-loss power transformer that preserves as much generated energy as possible
• Comprehensive intelligent protection of LV and MV circuits with modern circuit breakers and protection devices
• All-weather protected design for uninterrupted operation in harsh climates
• Full integration with industrial SCADA systems and cloud monitoring platforms
• Maximum personnel safety thanks to clear segregation of the LV, MV and transformer compartments
Key specifications
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Application
Industrial sites / utility-scale PV
Key features
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Mainstream 9.1 MW panel design, widely deployed worldwide
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Shipped in a standard 20' HC container for easy transport. Convenient installation
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A complete solution – from the inverter to the main step-up transformer
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Once the container is lifted onto its foundation, only the low- and medium-voltage cables need to be connected WIRING DIAGRAM MCCB1 MCCB2 ACB MCCB14 AC SPD MCCB1 AC SPD MCCB2 ACB MCCB14 Low-voltage panel Reliable products
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The low-voltage panel, transformer and ring main unit must be installed separately
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Start using equipment from an internationally recognised brand renowned for dependable quality. Easy to operate and maintain
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Fully front-serviceable design
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Modular medium-voltage equipment design with easy relay replacement 9100 kVA Dy11-y11 Transformer Medium-voltage switchgear
Technical specifications
Models
SKU: Solis-9100-MV Solis-9100-MV
General data
- Low-voltage panel — moulded case circuit breaker (MCCB) specification
- 400 A / 800 Vac / 3P, 14 × 2 pcs
- Connection arrangement with the transformer
- Copper busbar
- Transformer — transformer type
- Oil-immersed
- Rated output power
- 9100 kVA @ 40°C
- Max. apparent output power
- 9800 kVA @ 30°C
- Low / medium voltage
- 0.8 kV / 10 - 35 kV
- Max. input current
- 3536 A × 2
- High-voltage switch
- ±2 × 2.5%
- Transformer vector group
- Dy11y11
- Frequency
- 50 Hz / 60 Hz
- Cooling method
- ONAN
- Resistance
- 9.5% (±10%)
- Oil type
- Mineral oil (optional: vegetable oil)
- Winding material
- Al / Al (optional: Cu / Cu)
- Insulation class
- A
- Connection arrangement with the medium-voltage switchgear
- Cable
- Medium-voltage switchgear — insulation type
- SF6 (optional: SF6-free)
- Rated voltage
- 12 - 40.5 kV
- Rated current
- 630 A
- Internal arc fault
- 20 kA / 1 s
- Number of power supplies
- 3 feeders
- Dimensions (W × H × D)
- 6058 × 2896 × 2438 mm
- Approximate weight
- 23.5 T
- Ambient operating temperature range
- -25 ~ +60°C
- Max. operating altitude
- 2000 m
- Auxiliary power supply
- 5 kVA / 230 V (optional: maximum 50 kVA)
- UPS
- 1 kVA 30 min (optional: maximum 2 kVA 2 h)
- Ingress protection (IP)
- IP54
- Anti-corrosion class
- C4-H (optional: C5-M)
- Permissible relative humidity range
- 0 - 95%
- Communication
- RS485, Ethernet, Optical fiber
- Standards compliance
- IEC 60076, IEC 62271, IEC61439
Protection
- Overvoltage protection (low voltage)
- AC type I + II
- AC input protection
- Circuit breaker
- Transformer protection
- Oil temperature, oil level, oil pressure
- Fire protection
- Smoke detection, emergency lighting
Related products
Documentation and certificates
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DownloadDatasheet
MV-підстанція Solis 9100 кВт для інверторів 350K.pdf
Frequently asked questions
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Start from the site's average daily consumption and the peak load the inverter has to carry in off-grid mode. The power range of each modification and the recommended PV array size for it are listed in the product card under "Key specifications" — for a precise selection, contact a Solis dealer or use the form below.
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The list of validated batteries is published on the product page — in the compatible-equipment section, where one has already been compiled for that model. The voltage range (LV or HV, depending on the series) is stated in the technical specifications either way. If there is no list, or the battery you need is not on it, contact the Solis Ukraine technical department — compatibility should be confirmed separately.
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Most Solis hybrid and off-grid inverters support connecting a generator with automatic start-up when the battery is discharged. Whether a specific model has this function, and how it is wired, is stated under "Key features" and in the "Technical specifications" table of the product card.
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It depends on the series: single-phase models are designed for a 220 V grid, three-phase models for 380/400 V. The exact connection type for a given product is stated in the "Grid phases" card under "Key specifications".
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Solis equipment carries the manufacturer's warranty, which in Ukraine is administered by official dealers and authorised service centres. The exact term and conditions are stated on the warranty card and on the device's rating plate — for registration and the claim procedure, see the Support section.
Didn't find your answer?
The Solis Ukraine technical department advises on equipment compatibility, wiring diagrams and system configuration.