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MVS3200-3520-3660-4480-4500-LV Medium Voltage Inverter
MVS3200-3520-3660-4480-4500-LV Medium Voltage Inverter

MVS3200-3520-3660-4480-4500-LV Medium Voltage Inverter

MV Turnkey Solution for 1500V String Inverters (SG320HX-20/SG350HX/SG350HX-20). Integrated solar systems for large-scale ground-mounted and C&I projects. Combines high efficiency, smart monitoring, and rugged reliability to reduce LCOE and accelerate ROI.

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Description

The MV (Medium Voltage) Turnkey Solution is a comprehensive, end-to-end system integration package designed for large-scale ground-mounted power plants and commercial & industrial (C&I) photovoltaic projects. Centered around the SG350HX 1500V string inverter, this solution delivers a high-performance, intelligent, and reliable solar power generation system that streamlines project deployment from design to commissioning.

Key features include:

Optimized Efficiency: Leverages the SG350HX's 99.0% peak efficiency and 1500V architecture to maximize energy yield while minimizing LCOE (Levelized Cost of Energy).

Smart Integration: Incorporates advanced grid-support functions and IV curve diagnosis technology for real-time system health monitoring and fault detection.

Robust Reliability: Standard container design, C5 anti-corrosion certification, and a modular design to ensure 25+ year operation in harsh environments.

Scalable Architecture: Supports flexible configurations with bifacial modules and multi-MPPT tracking (up to 28 inputs per inverter), adaptable to complex terrain and shading conditions.

Grid Compliance: Meets global grid code requirements including low voltage ride-through (LVRT) and reactive power compensation for stable grid interconnection.

This integrated solution reduces EPC complexity through pre-validated component compatibility, standardized engineering designs, and smart O&M capabilities via cloud-based energy management platforms.


Type DesignationMVS3200-LVMVS3520-LVMVS3660-LV

Transformer

  • Transformer typeOil immersed
  • Rated power3200 kVA @ 40 ℃3520 kVA @ 40 ℃3660 kVA @ 40 ℃
  • Max. power3520 kVA @ 30 ℃3872 kVA @ 30 ℃4026 kVA @ 30 ℃
  • Vector groupDy11
  • LV / MV voltage0.8 kV / ( 10 - 35 ) kV
  • Maximum input current at nominal voltage2540 A2794 A2905 A
  • Frequency50 Hz or 60 Hz
  • Tapping on HV0 , ± 2 * 2.5 %
  • Efficiency≥ 99 % ( optional: Tier2 )≥ 99 %Tier2
  • Cooling methodONAN ( Oil Natural Air Natural )
  • Impedance7 % ( ± 10 % )
  • Oil typeMineral oil (PCB free)
  • Winding materialAl / Al
  • Insulation classA

MV switchgear

  • Insulation typeSF6
  • Rated voltage range24 kV – 40.5 kV
  • Rated current630 A
  • Internal arcing faultIAC AFL 20 kA / 1 s

LV panel

  • Main switch specification4000 A / 800 Vac / 3P, 1 pcs
  • Disconnector specification260 A / 800 Vac / 3P, 10 pcs260 A / 800 Vac / 3P, 11 pcs260 A / 800 Vac / 3P, 12 pcs
  • Fuse specification400A / 800 Vac / 1P, 30 pcs400 A / 800 Vac / 1P, 33 pcs350A / 800 Vac / 1P, 36 pcs

Type DesignationMVS4480-LVMVS4500-LV

Transformer

  • Transformer typeOil immersed
  • Rated power4480 kVA @ 40 ℃4500 kVA @ 51 ℃,4527 kVA @ 50 ℃
  • Max. power4928 kVA @ 30 ℃5280 kVA @ 30 ℃
  • Vector groupDy11
  • LV / MV voltage0.8 kV / ( 10 - 35 ) kV
  • Maximum input current at nominal voltage3557 A3811 A
  • Frequency50 Hz / 60 Hz
  • Tapping on HV0 , ± 2 * 2.5 %
  • Efficiency≥ 99 % ( optional: Tier2 )≥ 99 %
  • Cooling methodONAN ( Oil Natural Air Natural )
  • Impedance8 % ( ± 10 % )
  • Oil typeMineral oil (PCB free)
  • Winding materialAl / Al
  • Insulation classA

MV switchgear

  • Insulation typeSF6
  • Rated voltage range24 kV – 40.5 kV
  • Rated current630 A
  • Internal arcing faultIAC AFL 20 kA / 1 s

LV panel

  • Main switch specification4000 A / 800 Vac / 3P, 1 pcs
  • Disconnector specification260 A / 800 Vac / 3P, 14 pcs260A / 800 Vac / 3P, 15 pcs
  • Fuse specification400 A / 800 Vac / 1P, 42 pcs400A / 800 Vac / 1P, 45 pcs

Protection

  • AC input protectionFuse+Disconnector
  • Transformer protectionOil-temperature, Oil-level, Oil-pressure, Buchholz
  • Relay protection50 / 51, 50N / 51N
  • Surge protectionAC Type I + II

General Data

  • Dimensions ( W * H * D )6058 mm * 2896 mm * 2438 mm
  • Approximate weight15T - 17T
  • Operating ambient temperature range-20 ℃ to 60 ℃ ( optional: -30 ℃ to 60 ℃ )
  • Auxiliary transformer supply15 kVA / 400 V ( optional: max. 40 kVA )
  • Degree of protectionIP54
  • Allowable relative humidity range (non-condensing)0 % – 95 %
  • Operating altitude1000 m ( standard ) / > 1000 m ( optional )
  • CommunicationStandard: RS485, Ethernet, Optical fiber
  • ComplianceIEC 60076, IEC 62271-200, IEC 62271-202, IEC 61439-1, EN 50588-1