Parameters
| System Components | Battery Pack | DV48V | DC110V | DC220V | DC380V | DC480V |
| Charging and Discharging Unit | Battery Pack | 40~60V | 90~132V | 170~270V | 300~450V | 380~600V |
| Current Limiting Charging Current Range | 1～100A (single module power 5000W, according to the actual current size of the parallel) | |||||
| Discharge Current Range | 5～100A (single module power 5000W, according to the actual current size of the parallel) | |||||
| Voltage Measurement Resolution | 0.01V ; ±0.5%* nominal battery pack voltage | |||||
| Current Measurement Resolution | 0.1A; ±1% | |||||
| Sizes | 438*440*177mm | |||||
| Operating Temperature | -5～+40℃;Working humidity(RH)≤95%. | |||||
| Communication Interface | USB interface, RS232 interface | |||||
| Discharge Mode of Operation | Constant current discharge, constant power discharge | |||||
| Charging Operating Mode | Constant current charging + constant voltage charging, constant current voltage limiting | |||||
| Energy Return | The discharged capacity of the battery can be connected to the grid through DC/AC inverter to achieve grid feedback. | |||||
| Display Functions | 7″ true colour touch screen for local monitoring information display | |||||
| Online Monitoring Unit | Cell Module Monitoring Range | 1.5V～16V | ||||
| Operating Voltage Measurement Range | DC 0V～600V | |||||
| Internal Resistance Measurement Range | 0.05～32000μΩ | |||||
| Cell Temperature Measurement Range | ±10° C to 85° C; Accuracy:±1° C | |||||
| Communication Method | RS485/TCP/USB | |||||
| Input Voltage Range | AC100～240V or DC48\DC220 | |||||
| Display Function | 7-inch LCD touch screen, resolution 800 * 480, for on-site viewing and parameter setting | |||||
| Battery Monitoring Range | The host adopts 1 drag 4, single group supports up to 125 batteries * 4 groups of battery monitoring | |||||
| Remote Management System | Online Monitoring Function | Real-time monitoring of total battery pack voltage, charge/discharge current, cell voltage, temperature, internal resistance and other parameters. | ||||
| Data Analysis Functions | With powerful data analysis function, it can store relevant battery remote operation data, generate total voltage graph, current graph, single voltage bar graph, single voltage graph, conductive strip pressure difference curve, analyse the battery condition through relevant curves; it can print relevant data of the battery and export them in EXCEL format. | |||||
| Real-time Alarm Function | Real-time alarms for abnormal conditions such as high voltage, low voltage, cut-off voltage, high temperature and so on. | |||||
Overview
HDGC3927 is multi battery maintenance system to integrate online monitoring, battery discharging and capacity testing, high-frequency charging and DC inverter, which can perform real-time monitoring of the battery internal resistance, single-unit voltage, single-unit temperature, the total voltage/current at the end of the group, the battery remote capacitance verification, charging, and power recovery of a comprehensive maintenance system.
There is no need of any personnel to process and take safety measures at the site, and detach the battery group from the DC system to carry capacity testing. It can reduce the labor intensity of battery maintenance personnel, provide comprehensive scientific management tools for battery maintenance. Not only improve the timeliness of work, but also to achieve energy recovery, energy saving and environmental protection, reduce noise pollution.
Applications
Applicable to all kinds of DC screen backup battery online monitoring and maintenance, computer room battery monitoring, rail transportation, IDC data center remote nuclear capacity maintenance.
Features
● Display intuition
7-inch touch screen and monitoring host integrated design, easy to install, real-time data view, can also be read through the background.
● Online charging and discharging
online charging and discharging can be realized without disconnecting from the bus, and it can be switched to DC power supply immediately in case of power failure.
● Multi-protection function
Stop discharging when the system alarms, completely isolate the battery pack, with over-voltage, over-temperature, islanding protection, etc.
Meanwhile, manage the balance of the bus bar pressure difference through the charging, to prevent the phenomenon of circulating currents in multiple groups of batteries.
● One-key charging/discharging function
Remote key control of 0.1C constant current discharge of the battery pack, adopting inverter and grid-connected discharging method. The whole process does not generate heat, the AC and DC circuits are physically isolated, and the discharged power is available for the station’s AC equipment, so that the whole discharging process is safe and energy-saving.
● Data analysis platform
The supporting background management software processes the collected data information, analyzes the remaining capacity of the battery, generates various curves and bar graphs, easily identifies backward monomers, effectively evaluates the performance of the battery pack, and provides intelligent early warning.
● Energy saving, carbon reduction and environmental protection
The nuclear capacity unit can directly invert the discharged power back to the grid, energy saving and environmental protection, and reduce noise pollution.
● Multiple discharge shutdown thresholds
Provide multiple discharge shutdown thresholds to avoid overcharging and discharging, and sufficient protection measures for various abnormal conditions during discharge.
Automatic termination, LCD display prompts and beep warning to assist the user to deal with, or analyze through the background.
Technology Comparison
| Project | Offline operation | Online load-capacity operation and maintenance | Remote charging and discharging operation and maintenance |
| Safety | Need to disconnect the bus bar, while the external monitoring equipment has to be dismantled and wired, which poses a major safety hazard. | No dismantling of the wiring security risks, false load capacitance heat generation, the battery into the online discharge DC system without backup, unsafe | No unplugging safety hazards, seamless power supply system always backed up, safety |
| Discharge Method | Meet the requirements of operation and maintenance, data statistics are cumbersome and not easy to manage. | Discharge current constant power, can not be accurate constant current, deviation from 0.1C discharge method, test results do not meet the operation and maintenance standards | Discharge current can be scientifically adjusted to maintain a constant, in strict accordance with the 0.1C standard adjustable, to meet the operation and maintenance specifications |
| Charging Method | No real-time online charging after constant current/constant voltage, loss of float charging, harmful to battery packs | With the help of DC panel charging module, immediately cut into charging after discharging, the formation of pressure difference between the two groups of battery charging, there are risks. | Discharge point completion module is automatically transferred to the charging mode for intelligent three-stage charging, charging to the required value, directly disconnect and merge into the DC screen replenishment mode, seamless connection |
