1. Structure of Photovoltaic Grid-Connected Inverter SG100K3 DescriptionA solar inverter, or PV inverter, or Solar converter, converts the variable direct current (DC) output of a photovoltaic (PV) solar panel into autility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-grid electrical network.ÿIt is acritical BOS?component in a photovoltaic system, allowing the use of ordinary AC-powered equipment. Solar inverters have special functions adapted for use with photovoltaic arrays, including maximum power point tracking and anti-islanding protection.Suitable for 50Hz/60Hz grid, could be used in Asia, Australia and Europe.ÿ2. Main Features of the Photovoltaic Grid-Connected Inverter SG100K3* Advanced Technology, Grid-friendly ? Optional low-voltage and zero-voltage ride through to cope with various grid conditions? SVG function at night, response to grid directives around the clock? Reactive power control with power factor from 0.9 lagging to 0.9 leading ÿ* More Compact, Saving Space for PV Plant ? Power density enhanced 40%, one of the central inverters with highest power density in the PV industry ? Save installation spaces and lower the plant initial cost? Front maintenance, able to install against the wall, convenient installation and maintenance, saving operation cost of the PV plant ÿ* Efficient, More Yields ? Max. efficiency at 97.3% with transformer ? Efficient MPPT control strategy, improve power yields? 28335 chips adopted, more accurate calculation, more power yieldsÿ* More Advantagesÿ ? Perfect protection and fault alarm system, safe and reliable? User-friendly dynamic graphics LCD? Efficient PWM algorithm, low consumption of switch? Operate without power derating at -25? – +55?? Reliable and continues operation in high altitude environment ? Auxiliary heater (opt.)? CGC certification, compliance with BDEWÿ3. Photovoltaic Grid-Connected Inverter SG100K3 Imagesÿÿ4. Photovoltaic Grid-Connected Inverter SG100K3 SpecificationInput Side Data?Max. PV input power113KWMax. PV input voltage1000VSet-up voltage500VMin. operation voltage480VMax. PV input current236AMPP voltage range480~850VNo. of DC inputs4Output Side Data?Nominal AC output power100KWMax. AC output apparent power110KVAMax. AC output current158ATHD<3%(Nominal power)Nominal AC voltage400VAC voltage range310V~450VNominal grid frequency50/60HzGrid frequency range47~52Hz/57~62HzPower factor>0.99@default value at nominal power, adj. 0.9 overexcited ~0.9 underexcitedIsolated transformerYesDC current injection<0.5 % InEfficiency?Max. efficiency97.30%European efficiency96.70%Protection?Input side disconnection deviceBreakerOutput side disconnection deviceBreakerDC overvoltage protectionYesAC overvoltage protectionYesGrid monitoringYesGround fault monitoringYesInsulation monitoringYesGeneral Data?Dimensions?W?H?D?806?1884?636mmWeight760kgOperating ambient temperature range-25~+55?Night power consumption<40WExternal auxiliary supply voltageNoCooling methodTemperature controlled air-coolingIngress protection ratingIP21Allowable relative humidity range0~95% no condensingMax. operating altitude6000m(?3000m derating)Fresh air consumption870m?/hDisplayLCDCommunicationRS485/Modbus, Ethernet(Opt.)ÿÿ5. FAQ of Photovoltaic Grid-Connected Inverter SG100K3Q1. What is the difference betweenÿinverterÿandÿsolar inverter?A1. Inverter only has AC inpput, but solar inverter both connect to AC input and solar panel, it saves more power.ÿQ2. What is the difference betweenÿMPPT&PWM?A2. MPPT has higher efficiency, it can track the max power point and won't waste energy.