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Product overview
The product is an integrated intelligent inverter with built-in charge controller system designed for large photovoltaic power Its built-in controller can realize charge management for a battery pack by multiple solar arrays to improve charge efficiency and life of the battery pack. Thanks to its full digital vector control technology based on real-time processing by DSP,MCU and DDC,it has perfect protection functions and high reliability. Its mains supply preferred mode,and battery preferred mode are all settable,thus making it easy to meet the different application needs of users. It has an LCD .It is widely applied to large solar power generation occasions including families schools, public lighting, industrial and mining enterprises, frontier defense, sea islands, pasturing areas, etc.
Features
High reliability
-Frequency tracking,noise filtering and low distortion in inverter output because of double-conversion design
High adaptability
A wide range of input frequency,which realizes stable operation of fuel generators
High optimal performance of the battery
-An intelligent battery management technology,which guarantees a longer battery life and decreasess the times of battery maintenance
-An advanced constant-voltage charge technology,which activates the battery to the most extent ,saves the charge time and guarantees a longer battery life
Overall and reliable protection
-A power-on test function,which can avoid the faults because of hazarda of the inverter
Efficient IGBT
-Inversion technology Good high-speed switching feature,large-voltage and large and large-current operating characteristics,and voltage druve of IGBT (The fifth-generation IGBT has a lower saturation voltage drop and higher operation efficiency and reliability.)
Model | NKD-8KW | NKD-10KW | NKD-15KW | NKD-20KW | NKD-30KW | |
Rated power | 8KW | 10KW | 15KW | 20KW | 30KW | |
Battery | Rated voltage | 96V DC/192V DC/220V DC/384V DC | ||||
Voltage of over discharge protection | 96VDC/172V DC/194V DC/345V DC | |||||
Controller | Rated current | 100A | ||||
Rated voltage | 192V DC/220V DC/384V DC | |||||
Number of inputs | 4 | |||||
Max. current of each input | 25A | |||||
Solar input voltage | <165VDC/<330V DC/<378V DC/<660V DC | |||||
Voltage of overcharge protection | 220V DC/255V DC/445V DC(programmable) | |||||
Control accuracy | ±0.1 | |||||
Display accuracy | ±0.1 | |||||
Efficiency | >95% | |||||
Inverter | Input voltage | 88-132V AC/176-264V AC | ||||
Input frequency | 45-65Hz | |||||
Output voltage | 110V AC/220V AC | |||||
Output frequency | 50/60Hz | |||||
Output waveform | Pure sine wave, THD<4% (full load) | |||||
Protection function | Output short circuit protection, over-voltage protection, under-voltage protection, low battery protection, etc. | |||||
Manual power-on/off | Manual power-on/off preferred | |||||
Automatic power on/off | Light-operated power-on+fixed-time power-off (programmable) | |||||
Other | Ambient temperature for operation | 0-40℃ | ||||
Relative humidity for operation/storage | 20-90% (No condensation, maximum) |