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MAIN FEATURES
◆Excellent performance because of the DSP intelligent control inversion technology
◆A wide range of applicable loads because of pure sine wave AC output;
◆Visualization of operation status of the equipment through simple LEDs and a LCD;
◆Overall automatic protection and alarms such as output overload protection;
◆Solar array and battery common-anode system input;
◆Intelligent charge control based on programming of charge parameters, which is provided to meet the special needs of different occasions;
◆Settable battery protection parameters, and a function of password protection;
◆A function to accumulate the photovoltaic power generation capacity and the battery capacity;
| Product Specifications | |||||
| Model：NKG- | NKG-10KW | NKG-15KW | NKG-20KW | NKG-30KW | |
| Rated Power | 10KW | 15KW | 20KW | 30 KW | |
| Battery | Battery Voltage | 192VDC/216VDC/240VDC | |||
| Low power shutdown voltage | 172VDC/194VDC/216VDC | ||||
| Restart voltage after low battery | 216VDC/243VDC/270VDC | ||||
| MPPT Controller | Controller Types | With maximum power point tracking (MPPT) function controller | |||
| Rate Current | Solar1: 50A;Solar 2: 50A | ||||
| Current Limiting Protection | Solar1: 52A:Solar 2: 52A | ||||
| Rate Voltage | 1 92VDC/216VDC/240VDC | ||||
| System Identification Voltage Range | / | ||||
| Operating Voltage Range | DC260V-DC420V | ||||
| Charge mode | Three stages:constant current (quick charge), constant pressure, floating charge | ||||
| Battery Type | Sealed lead-acid battery, colloidal lead-acid battery, open lead-acid battery (you can customize parameters to charge other types of batteries) | ||||
| PV module input power | 192VDC:Solar 1: 10KW,Solar 2: 10KW, / 21 6VDC:Solar 1： 11,5KW,Solar 2 :11.5KW, / 240VDC:Solar 1 : 12.5KW, Solar 2:12.5KW | ||||
| Vmax-pv | <420VDC | ||||
| Vlow-py | 240VDC/250VDC/270VDC | ||||
| Vstar-pv | 260VDC/270VDC/290VDC | ||||
| Vovet-pv | 425VDC | ||||
| Floating Charge Votage (Lead Acid Battery) | 220.8VDC/248.4VDC/276VDC (Can be customized) | ||||
| Average charging Voltage (Lead Acid Battery) | 232VDC/261VDC/290VDC(Can be customized) | ||||
| PV module utilization | ≤99.97% | ||||
| Machine Efficiency | ≥96.5% | ||||
| Output Regulation Accuracy | ≤±1.5% | ||||
| Temperature Coefficient | ±0.02%/°C | ||||
| Temperatue Compensation | 14.2V-(Maximum Temperature-25C) *0.3 | ||||
| Protective function | Input and output over-voltage protection, anti-reverse protection, short circuit protection, etc. | ||||
| Inverter | Input phase number | Three-phase+N + G | |||
| Input voltage | AC380VAC±15% | ||||
| Input frequency | 50Hz/60Hz±5% | ||||
| Output voltage | AC220V/AC380V±2% (Steady state load) | ||||
| Output frequency | 50Hz/60Hz±5%(main supply) 50Hz±0.1% (Battery powered) | ||||
| Eff iciency | ≥90% (100% resistive load) | ||||
| Output waveform | Pure sine wave | ||||
| Total harmonic distortion | Linear load<3% Nonlinear load<5% | ||||
| Dynamic load voltage transient | <±5% ( 0-100% ) | ||||
| Instantaneous recovery time | <10ms | ||||
| Battery and mains switching time | 1S-3S | ||||
| Unbalanced voltage | <±3% (Balancing load voltage) | ||||
| Overload capacity | 120% 20s; > 150%, 100ms | ||||
| Other | Operating ambient temperature | -10-40°C | |||
| Relative humidity | 0~90% (No Condensation) | ||||
| Noise | 40-50dB | ||||
| Struture | Product Size : DxWxH(mm) | 635*566*1295 | |||
| Package size: DxWxH(mm) | 760*690*1540 | ||||
| Weight(Kg) | 180 | 220 | 263 | 320 | |