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6.7MW/13.4MWh-2h <br>String-type Liquid-Cooled ESS 6.7MW/13.4MWh-2h <br>String-type Liquid-Cooled ESS

6.7MW/13.4MWh-2h
String-type Liquid-Cooled ESS

Product Advantages Product Advantages
Flexible Solutions

· The string-type energy storage solution enables batteryduster-level management

· It supports a parallel and cascadable layout, reducingsingle-unit footprint by over 30%
· With a modular design, it ensures convenient andefficient later-stage maintenance and operation

High Reliability

· Core modules feature IP66 high protection and C5 corrosionprotection, withstanding various harsh environments

· 250kA short-circuit capacity on the DC side with ms-levelbreaking capability
· Features intelligent detection of various system faults, as wellas detection and protection against thermal runaway

Grid-friendly

· The product features primary frequency regulation andinertia support functions, flexibly meeting grid operationrequirements
· It supports the IEC61850 protocol and rapid powerresponse capability

Intelligent & High-Efficiency

· Features high-efficiency and intelligent liquid coolingtemperature equalization control, with a temperaturedifference of less than 3°C
· Adopts a three-level topology with a maximum conversionefficiency of 99%
· Enables intelligent automatic fluid replenishment, reducingthe need for manual fluid replenishment

Technical Specifications Technical Specifications
Model 6.7MW/13.4MWh
DC-side
Cell type 3.2V/314Ah
System Battery Configuration 416S1Px16x2
Battery Rated Capacity 13375.89kWh
Battery Voltage Range 1164.8V~1497.6V
The AC-side PCS parameters
AC-Side Rated Power 3350kVA
AC-Side Voltage Distortion Rate <3% (rated power)
DC Component 0.5% (rated power)
AC-Side Rated Voltage AC660V
Grid Voltage Range 561V~726V
Power Factor >99% (rated power)
Reactive Power Adjustable Range -105%~105%
Rated Grid Frequency 50Hz
Grid Frequency Range 45Hz~55Hz
Isolation Method Transformer Isolation
Transformer Parameters
Rated Power 7500kVA
Voltage Ratio 35kV/0.66/0.66kV
Transformer Connection Group Dy11y11
System Parameters
PCS&Transformer Dimensions (W x H x D) 9000x3200x3400mm (Dry-type Transformer)
Battery Container Dimensions (W x H x D) 8710x2896x2600mm (x2)
PCS&Transformer Weight 30T
Battery Container Weight ≤60T (x2)
IP Level / Corrosion-proof Grade IP54/C3 (C5 Optional)
Operating Temperature Range -30°C~60°C (>45°C Derating)
Operating Humidity Range 0%~95% (Non-condensing)
Max. Operating Altitude 4000m (Derated Above 2000m)
Cooling Method Liquid Cooling
Converter Cooling Method Intelligent Air Cooling
Fire Protection System Perfluorohexanone /Water
System Communication Intertace LAN, Fiber Optic
External System Communication Protocol Modbus TCP, IEC61850
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