Technical Support FAQs-Gotion Grid 5015

Q: 8.What is the function of the High Voltage Box in the Gotion 5.015MWh system?

The High Voltage Box is a cluster-level control unit customized for the liquid-cooled energy storage system, acting as an intermediate unit connecting the battery pack and Integrated Control Panel. It is equipped with isolation switches, relays, fuses, L2 BMS and switching power supplies, with DC24V power supply and CAN communication interfaces, realizing data communication, control and protection of the battery management system, and featuring a compact structure and high safety.

Q: 9.What are the dual core functions of the Combiner Control Cabinet in the system?

The Combiner Control Cabinet has control and power distribution dual core functions: Control function: Integrates L3 BMS; communicates with L2 BMS via CAN, with PCS via RS485, with EMS via Ethernet; receives fire control/air conditioning data via RS485, and displays battery information through a screen. Power distribution function: Distributes mains power to cabin air conditioners, UPS and other equipment (equipped with micro break switches for protection); configures UPS for BMS/fire system to ensure power reliability; sets lightning protection devices in AC circuits.

Q: 10.What is the composition and working principle of the Thermal Management System in the Gotion 5.015MWh system?

① Composition: Liquid cooling plate, liquid cooling unit, liquid cooling pipeline (with temperature sensor/valve), high/low voltage wiring harness, 50% glycol aqueous solution coolant (350 liters per container); ② Working principle: The coolant is pumped to the battery pack to absorb the heat generated by battery operation, then returns to the condenser for condensation and recirculation, maintaining the battery at the optimal working temperature; applicable to -20℃~55℃ environment (derating required for >45℃).

1.What is Gotion 5.015MWh Energy Storage DC System?

Gotion 5.015MWh Energy Storage DC System is a high-capacity liquid-cooled energy storage DC system based on 314Ah lithium iron phosphate (LFP) cells, adopting a hierarchical modular design (cell-pack-rack-container). The standard 20-foot battery container model is ESD1331-05P5015, with DC side energy up to 5015kWh, suitable for large-scale industrial and commercial energy storage, grid-side energy storage and other high-power energy storage scenarios, featuring high safety, modular expansion and intelligent management.

2.What core cell does Gotion 5.015MWh Energy Storage DC System adopt?

The system is equipped with Gotion LFP314Ah lithium iron phosphate cell as the core energy unit, with a nominal voltage of 3.2V, nominal capacity of 314Ah, energy density ≥170Wh/kg, and excellent high and low temperature adaptability, which is the foundation of the system's high capacity and high safety.

3.What is the hierarchical modular design of Gotion 5.015MWh Energy Storage DC System?

The system adopts a four-level hierarchical modular design: Cell → Battery Pack → Battery Rack → Battery Container: 1 cell forms a 1P104S battery pack; 4 packs form a 1P416S battery rack; the standard 20-foot container integrates the rack and supporting systems to achieve 5015kWh energy output, with the advantages of easy maintenance and flexible capacity expansion.

4.What are the key parameters of the LFP314Ah cell in the Gotion 5.015MWh system?

The core parameters of LFP314Ah cell: ① Nominal voltage 3.2V, nominal capacity 314Ah; ② Operating voltage range 2.5-3.65V (T>0℃); ③ Rated charge/discharge rate 0.5P; ④ Energy density ≥170Wh/kg; ⑤ Storage temperature -40℃~60℃ (optimum 10℃~30℃); ⑥ Working temperature: charging 0℃~55℃, discharging -30℃~60℃.

5.What are the technical parameters of the battery pack in the Gotion 5.015MWh system?

The battery pack is configured as 1P104S (104 LFP314Ah cells): ① Rated capacity 314Ah, rated energy 104.499kWh (100%DOD); ② Nominal voltage 332.8V, operating voltage range 260-374.4V (100%DOD); ③ Rated charge/discharge rate 0.5P; ④ Cooling method: liquid cooling, ensuring stable battery operation.

6.What are the key specifications of the battery rack in the Gotion 5.015MWh system?

Each battery rack integrates 4 battery packs, configured as 1P416S: ① Nominal voltage 1331.2V, operating voltage range 1040-1497.6V (100%DOD); ② Rated capacity 314Ah, nominal energy 417.9kWh (100%DOD); ③ Rated charge/discharge rate 0.5P; ④ Working temperature consistent with cells, cooling method liquid cooling; ⑤ Humidity adaptability ≤95%.

7.What are the core parameters of the Gotion 5.015MWh standard 20-foot battery container (ESD1331-05P5015)?

The core parameters of the container: ① DC side energy 5015kWh (0.5P, 100%DOD, 25±2℃), rated voltage 1331.2V; ② Operating voltage 1040-1497.6V, max charge/discharge power 2507.5kW (0.5P); ③ Operating temperature 15℃~45℃ (≤0.5P), humidity ≤95%, altitude <2000m; ④ Protection grade IP54, weight ≈44000kg, size 605824382896mm; ⑤ Cooling method liquid cooling, fire suppression system NOVEC1230 (Perfluorohexanone).

8.What is the function of the High Voltage Box in the Gotion 5.015MWh system?

The High Voltage Box is a cluster-level control unit customized for the liquid-cooled energy storage system, acting as an intermediate unit connecting the battery pack and Integrated Control Panel. It is equipped with isolation switches, relays, fuses, L2 BMS and switching power supplies, with DC24V power supply and CAN communication interfaces, realizing data communication, control and protection of the battery management system, and featuring a compact structure and high safety.

9.What are the dual core functions of the Combiner Control Cabinet in the system?

The Combiner Control Cabinet has control and power distribution dual core functions: Control function: Integrates L3 BMS; communicates with L2 BMS via CAN, with PCS via RS485, with EMS via Ethernet; receives fire control/air conditioning data via RS485, and displays battery information through a screen. Power distribution function: Distributes mains power to cabin air conditioners, UPS and other equipment (equipped with micro break switches for protection); configures UPS for BMS/fire system to ensure power reliability; sets lightning protection devices in AC circuits.

10.What is the composition and working principle of the Thermal Management System in the Gotion 5.015MWh system?

① Composition: Liquid cooling plate, liquid cooling unit, liquid cooling pipeline (with temperature sensor/valve), high/low voltage wiring harness, 50% glycol aqueous solution coolant (350 liters per container); ② Working principle: The coolant is pumped to the battery pack to absorb the heat generated by battery operation, then returns to the condenser for condensation and recirculation, maintaining the battery at the optimal working temperature; applicable to -20℃~55℃ environment (derating required for >45℃).

11.What is the three-level BMS architecture of the Gotion 5.015MWh system and the main functions of each level?

The system adopts a L1-L2-L3 three-level BMS (Battery Management System) architecture, with hierarchical monitoring and control: ①L1 BMS (Pack level, built-in pack): Monitors single cell voltage/temperature and pack total voltage, transmits data to L2 via CAN, and controls single cell voltage balance. ②L2 BMS (Rack level, built-in High Voltage Box): Detects rack total voltage/current, transmits data to L3 via CAN, and monitors battery capacity/health status (SOH) and power prediction during charge/discharge. ③L3 BMS (System level, built-in Combiner Control Cabinet): Collects lower-level BMS data, real-time estimates battery remaining capacity (SOC) and SOH; communicates with external systems via RS485/CAN/Modbus-TCP/IP.

12.What fire suppression system is equipped in the Gotion 5.015MWh energy storage system?

The system adopts a multi-progressive fire extinguishing protection system with module-level submerged protection as the core: including Perfluorohexanone (NOVEC1230) automatic fire extinguishing system, automatic explosion-proof exhaust device, fire sprinkler system, and matching early warning devices (temperature/smoke/combustible gas detectors). A 35L Perfluorohexanone storage bottle is configured in each container, realizing full-process fire early warning, automatic fire extinguishing and manual emergency fire control.

13.What are the core detection devices of the fire suppression system in the Gotion 5.015MWh system?

The fire suppression system is equipped with multiple high-sensitivity detection devices in the container: ① 3 temperature detectors + 3 smoke detectors on the container top; ② 2 sets of combustible gas detectors (detect H2 and CO concentration, support threshold setting); all detectors form the front-line warning system for potential fire events, realizing real-time monitoring of battery thermal runaway risks.

14.What is the action logic of the Perfluorohexanone automatic fire extinguishing system in the system?

The automatic fire extinguishing system is activated only when the preset conditions are met (with container-level PCS circuit breaker tripped): ①Combustible gas detector reaches the first threshold and temperature detector is triggered; ②Any three temperature/smoke detectors are activated simultaneously. Before that, the system will trigger an audible and visual alarm, start ventilation/fan, and cut off the circuit breaker for early risk control when the first threshold is reached.

15.What emergency fire control measures are available if the fire in the container is out of control?

If the automatic fire extinguishing system fails to control the fire, the system is equipped with a manual fire sprinkler system for emergency treatment: it includes DN65/DN32 pipelines and sprinkler nozzles, and the fire hose can be connected to the reserved pipe tooth interface on the container. The system supports continuous water supply for no less than 3 hours to achieve full-coverage flooding of the container, ensuring the fire is controlled inside the container without spreading.

16.What other safety components are equipped in the Gotion 5.015MWh system besides the fire suppression system?

The system is equipped with multiple safety components for comprehensive protection: ① Pressure relief port: Releases excess pressure (caused by fire extinguishing agent spraying) to protect the container enclosure; ② Explosion-proof audible and visual alarms (outside the station): Installed on the container exterior for real-time fire warning; ③ Lightning protection devices: Set in the AC circuit of the Combiner Control Cabinet to prevent lightning damage; ④ UPS power supply: Configured for BMS/fire system to ensure continuous operation of safety equipment.

17.What are the key performance advantages of the Gotion 5.015MWh Energy Storage DC System?

The system has six core advantages for global large-scale energy storage scenarios: ①High capacity & high energy density: 5015kWh per 20-foot container, cell energy density ≥170Wh/kg; ②Excellent environmental adaptability: Wide temperature range for cells, container IP54 protection, humidity ≤95%; ③High safety: Three-level BMS, multi-progressive fire extinguishing system, pressure relief/audible and visual alarm and other multi-dimensional protection; ④Efficient thermal management: Full-link liquid cooling ensures stable battery operation and extends cycle life; ⑤Modular design: Hierarchical cell-pack-rack-container, easy maintenance and flexible capacity expansion; ⑥Intelligent management: Three-level BMS with multi-protocol communication (CAN/RS485/Ethernet), seamless connection with PCS/EMS.

18.What communication protocols and interfaces does the Gotion 5.015MWh system support?

The system has a rich communication system for seamless connection with upstream and downstream equipment: ①Internal BMS communication: L1-L2, L2-L3 via CAN protocol; ②External equipment communication: L3 BMS with PCS via RS485, with EMS via Ethernet (Modbus-TCP/IP); ③Auxiliary system communication: Fire control/air conditioning with L3 BMS via RS485; ④Other interfaces: High Voltage Box with DC24V power supply and CAN interfaces, realizing full-system data interconnection and intelligent control.

19.What application scenarios is the Gotion 5.015MWh Energy Storage DC System suitable for?

As a high-capacity liquid-cooled energy storage DC system, it is widely applicable to global large-scale energy storage scenarios: ① Grid-side energy storage (peak shaving and valley filling, frequency modulation and voltage regulation); ② Industrial and commercial large-scale energy storage (industrial parks, data centers, commercial plazas); ③ Renewable energy supporting storage (wind/solar power curtailment absorption, smooth grid connection); ④ Microgrid energy storage and emergency backup power supply for large energy users.

20.What key points need to be noted in the operation and application of the Gotion 5.015MWh system?

Key operation and application notes for the system: ①Operating temperature: The container operating temperature is 15℃~45℃ (≤0.5P), and the cell has a wide temperature range but needs to follow the charge/discharge temperature limits; ②Altitude limit: Applicable to altitude <2000m, need to confirm derating requirements for high-altitude application; ③Coolant maintenance: Each container is equipped with 350 liters of glycol aqueous solution coolant, which needs regular inspection and replacement; ④Fire system management: Regularly test the Perfluorohexanone storage bottle and detection sensors to ensure the fire suppression system is in normal working condition; ⑤BMS calibration: Regularly calibrate the three-level BMS to ensure accurate monitoring of SOC/SOH and reliable protection functions.