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[China]
Trade Verify
Address: Room 101, 1st Floor, No. 6, Third Street, Pingshan Industrial Zone, Shibi Street, Panyu District, Guangzhou, China
Contact name:Zoe Zou
Sinuo Testing Equipment Co. , Limited |
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Regenerative Type DC Electronic Load for Electric Vehicle Battery Pack
Equipment Overview
SNELD series regenerative DC electronic load adopts high-frequency PWM rectification and two-way DCDC conversion technology to achieve high-precision, programmable load characteristics, and 100% of the input end energy is fed back to the grid. It has the characteristics of high input power factor and fast dynamic response. This series of loads can be widely used in discharge aging tests such as fuel cell stacks, fuel cell engine systems, power battery packs, and charging stations.
Technical Parameters
| Product name | Regenerative Type DC Electronic Load | ||||||||
| Product number | SNELD10-800 | SNELD100-800 | SNELD150-800 | SNELD300-800 | SNELD500-800 | ||||
| Rated power | 40kw | 100kw | 150kw | 300kw | 500kw | ||||
| Peak power | 60kw | 150kw | 225kw | 425kw | 750kw | ||||
| Basic skills | |||||||||
| Pull function | Pull the device according to the set mode | ||||||||
| Isolation function | Built-in isolation transformer | ||||||||
Wiring | Input terminal: three-phase three-wire | ||||||||
| Output parameters | |||||||||
| Output mode | Constant voltage (CV), constant current (CC), constant power (CP), constant resistance (CR) | ||||||||
| Voltage range | 24.0-800.0VDC | ||||||||
| Current range | ± (0-80) A | ± (0-200) A | ± (0-300) A | ± (0-600) A | ± (0-1000) A | ||||
| Peak current | ±120A | ±300A | ±450A | ±900A | ±1500A | ||||
| Resistance range | 50mΩ-500Ω | ||||||||
| Voltage setting accuracy | 0.1%FS resolution: 0.1V | ||||||||
| Current setting accuracy | 0.1%FS Resolution: 01A | ||||||||
| Power setting accuracy | 0.2%FS resolution: 10W | ||||||||
| Resistance setting accuracy | 2% resolution: 1mΩ | ||||||||
| Ripple (vpp) | 0.2%FS | ||||||||
| Transient recovery time | 5ms | ||||||||
| Voltage rise time | 10ms (10% load - 90% load) | ||||||||
| Current rise time | 10ms (-90% load ~+90% load) | ||||||||
| Source voltage effect | ≤0.1% | ||||||||
| Load effect | ≤0.1% | ||||||||
| Output function | |||||||||
Display | Large screen color touch screen | ||||||||
| Waveform editing | Voltage and current slope, ladder, cycle control, jump control, battery discharge curve simulation | ||||||||
| Emergency stop function | emergency button | ||||||||
| Start-stop control | Separate control of discharge, charge and stop | ||||||||
| Bms interface function | Can freely set BMS communication commands, trigger conditions, etc. in order to protect in time | ||||||||
| Soft start | Pre-charge function | ||||||||
| Protective function | |||||||||
| Protective device | GBT overcurrent, IGBT overheating, transformer overheating, output overvoltage and undervoltage, overcurrent, overload, short circuit | ||||||||
| Remote interface | |||||||||
| Communication interface | Standard configuration: RS485 Optional: CAN, ETHERNET, USB | ||||||||
| Input parameters | |||||||||
| Input phase number | Three-phase 3wires+PE | ||||||||
| Input voltage range | 323V-437V(L-L) | ||||||||
| Input frequency range | 45~55Hz | ||||||||
| Input power factor | >0.99 | ||||||||
| Input harmonics | ≤3% | ||||||||
| Switching time | ≤10ms (+90% load~-90% load) | ||||||||
| Working environment | |||||||||
| Operating temperature | -20~45℃ | ||||||||
| Working humidity | 10~90%RH(Non-condensing) | ||||||||
| Volume and weight | |||||||||
Dimensions | 1200x1960x800 | 1400x1960x800 | 2600x1960x800 | 4500x1960x1000 | |||||
Weight | 500 | 800 | 1000 | 1800 | 3200 | ||||
Main Features
1. Adopt high frequency PWM rectification and bidirectional DCDC technology, pure digital control, strong function and high reliability.
2. Four output modes: constant current (CC), constant voltage (CV), constant power (CP), and constant resistance (CR).
3. The current switching response speed is fast, which can meet the fuel cell test requirements.
4. Possesses low-voltage and high-current load capacity, which can meet the fuel cell stack test requirements.
5. Using PWM conversion technology, 100% of the absorbed energy is fed back to the grid, energy saving and emission reduction, and high input power factor, no pollution to the grid.
6. Multiple protection functions: output under voltage, phase loss, output over voltage, IGBT over heat, IGBT over current, over temperature protection, short circuit current limit protection.
Application
1. Fuel cell stack discharge test
2. Charging pile aging and performance test
3. Aging and performance testing of DC power supply equipment
4. Power battery discharge test
