The All-in-one ESS cabinet features advanced pack-level liquid cooling and temperature balancing, maintaining cell temperature dierences within 3°C. This enhances cell temperature consistency and extends battery life. Its modular design enables flexible parallel configurations and higher energy density, significantly improving the cost-eectiveness, safety, and installation convenience of ESS projects.
رقم الصنف :
BESS-P261تبريد :
Liquid Coolingمنفذ الاتصالات :
CAN, RS485سعة :
261KWHجهد الخرج :
380V / 400V, Other Voltages Customizedفئة الحماية :
IP55ضمان :
10 Yearsشهادة :
CEيكتب :
All-in-oneThe energy storage system is configured as 125kW/261kWh, and it adopts a distributed integrated design scheme. It is used in a variety of application scenarios such as emergency power supply, peak-cutting and valley-filling. Battery capacity is 261kWh, it is connected to the high-voltage switch box through a cable, and the three-phase four-wire energy storage converter (PCS) in the box is connected to the rear. The system is equipped with a 125kW PCS integrated machine and connected to 400Vac AC bus.

Specification
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MODEL
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BESS-P261 |
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| Battery Energy(kWh) |
261KWH |
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| Rate Power |
125KW |
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| AC Output |
400V, 3L+N+PE, 50Hz/60Hz |
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| Transfer Time |
≤20ms |
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| Communication |
RS232/RS485/CAN/BLUETOOTH/ WIFI |
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Cooling Method
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Liquid Cooling
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Storage Temperature Range
|
-20~45°C
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Operation Temperature
|
-20~60°C |
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Humidity
|
5%RH~95%RH |
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Altitude
|
≤3000m
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Safety System
|
Aerosol
|
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BATTTERY PARAMETERS
|
|||
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Battery Chemistry
|
LiFePO4
|
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| Nominal Capacity |
314Ah |
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| Composition Method |
1P260S |
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| Nominal Voltage |
832V |
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| Operating Voltage Range |
728-936V |
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| Efficiency |
>94% (DC side) |
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| Max Charging Current |
140A |
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| Max Discharging Current |
140A |
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| Cycle |
8000 cycles 80%DOD, 0.5C |
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Calendar Life
|
10 years |
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PCS PARAMETERS
|
|||
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Max DC power
|
137kw/1min |
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| Rate Operating Voltage |
AC 400VAC |
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| Max AC Current |
180A |
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| Approved Grid Frequency Range |
50/60Hz |
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| AC Harmonic Voltage |
<3% (linear load) |
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Voltage Deviation
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<5% (linear load) (phase<3%) |
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| MECHANICAL SPECIFICATIONS | |||
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Machine Dimension (W*H*D)(mm)
|
1050*1350*2400 |
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| N.W(kg) |
2600 |
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| IP Grade |
IP55 |
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Certification & Standards
|
CB, CE, EMC, UN38.3, RoHs |
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Product Description

Compact Structure
Locating only 1.4 square meters, it facilitates transportation and installation.
High Integration
With a single unit capacity of up to 261 kWh and exceptional durability.
Highly Efficient Cooling
Superior internal liquid cooling piping design achieves efficient cooling and low energy consumption.
Flexible Expansion
Modular design simplifies parallel expansion.

Capacity and Integration: Utilizes integrated Lifepo4 battery clusters, with built-in BMS (Battery Management System), PCS (Power Converter System), EMS (Energy Management System), and auxiliary systems such as fire protection and temperature control, all encapsulated in a standard rack for easy on-site deployment.
Energy Conversion: As the system hub, it receives DC power from photovoltaics, performs DC-AC conversion via the PCS, and outputs 400Vac AC power. It can also charge from the grid/load side in reverse, achieving functions such as peak shaving and valley filling, and photovoltaic power consumption.
Intelligent Management: Supports remote monitoring via local PC and mobile devices, allowing real-time viewing of battery SOC, charging/discharging power, fault alarms, and flexible configuration of charging/discharging strategies.
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03
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04
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