Solar Inverter
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1New Renewable Energy Convergence Core Technology Development Project
Developed and certified: S40K grid-connected photovoltaic inverter 4kw
- The highest efficiency in Korea (97.5%)
- Certified in Korea in Jan 2014 (PV-GT1-1-0087)
Production suspended
2Developed and certified: 3.5kw grid-connected photovoltaic inverter for outdoor
Currently developing S35K grid-connected high-efficient photovoltaic inverter models
photovoltaic inverter with higher efficiency of 97.0% than other foreign models of the kind are under development - this new development is based on the waterproof, moisture-resistance, compact and light technologies for stability and convenience for outdoor installation.
Sample available: FEB. of Dec 2015
3Grid-connected 3.5kw and 4kw outdoor type photovoltaic Inverter Specification
| Description | S35K(Out-Door Type) | S40K(In-Door Type) | |
|---|---|---|---|
| Operate | Galvanic Separation | Public Grid / None-Isolated | Public Grid / None-Isolated |
| PV Input Control | MPPT (Maximum Power Point Tracking) | MPPT (Maximum Power Point Tracking) | |
| DC INPUT | Maximum DC Voltage | DC 500V | DC 500V |
| Operating Voltage | DC90~500V | DC90~500V | |
| Optimized Voltage | DC370V | DC370V | |
| Max Input Current | 16A | 16A | |
| MPPT Voltage Range | DC100~460V | DC100~460V | |
| AC OUTPUT | Supply Phases | Single, 2 wire | Single, 2 wire |
| Output Power | AC220V / 13.6A / 3.0KW | AC220V / 18.2A / 4.0KW | |
| Output Voltage Range | AC193V~242V | AC193V~242V | |
| Rated Voltabge & Frequency | AC220V / 60Hz | AC220V / 60Hz | |
| Total Harmonic Distortion | THD less than 5% at rated output | THD less than 5% at rated output | |
| Power Factor | Over 0.95 at rated output | Over 0.95 at rated output | |
| Maximum Efficiency | 97.00% | 97.50% | |
| European Efficiency | 96.50% | 97.10% | |
| STRUCTURE | Cooling Concept | Air Cooling system | Air Cooling system |
| Protecting Rating | IP65 | IP24 | |
| Noise Emission | Under 50dB(A) | Under 50dB(A) | |
| Dimensions | 410 * 150 * 310mm(W*D*H) | 460 * 128 * 280mm(W*D*H) | |
| Weight | 12.1Kg | 11.3Kg | |
| Built_in | Wall Mount Type | Wall Mount Type | |
| PROTECTION | PV Input | DC Over Voltage protection (over DC510V) | DC Over Voltage protection (over DC510V) |
| Over Current protection (over 16A) | Over Current protection (over 20A) | ||
| SPV Leakage Current detection | SPV Leakage Current detection | ||
| AC Output | AC over Voltage (Over AC242V) | AC over Voltage (Over AC242V) | |
| AC under Voltage (Under AC193V) | AC under Voltage (Under AC193V) | ||
| Over Frequency(Over AC242V) | Over Frequency(Over AC242V) | ||
| Under Frequency (Under 59.3Hz) | Under Frequency (Under 59.3Hz) | ||
| Anti Islanding(Within 0.5sec) / RPV (reactive-power-variation) | Anti Islanding(Within 0.5sec) / RPV (reactive-power-variation) | ||
| Over Temperature protection(refer IGBT Heat_Sink 85℃) | Over Temperature protection(refer IGBT Heat_Sink 85℃) | ||
| DC Leakage Current protection | DC Leakage Current protection | ||
| Environmental | Operating Temperature | -10~40℃ (No Freezing, No Dew condernsation) | -10~40℃ (No Freezing, No Dew condernsation) |
| Storage Temperaature | -20~65℃ (No Freezing, No Dew condernsation) | -20~65℃ (No Freezing, No Dew condernsation) | |
| Humidity | 25~85%RH | 25~85%RH | |
| Cummunication Interface | RS -232C/RS-485 | RS -232C/RS-485, LAN | |
4S40K & S35K grid-connected photovoltaic inverter - Certificates
5NeT (Certificate for New Technology)
Manufacturing technology for independent operation of single-phase inverter up to 5km without ESS
