mppt solar charge controller 192v-540v

The off grid solar inverter can be put outside and work without battery. Both solar panel and grid are connected to the inverter, solar is priority, grid will be backup. It is very suitable for such situation: loads work at daytime, with grid connection. Electricity bill can be saved a lot. The inverter power range can be 5kw to 500kw.

The solar photovoltaic power system connected to the public grid is called on-grid photovoltaic power generation system. The system structure includes solar panel arrays, DC/DC converters, DC/AC inverters, AC loads, transformers, and other components. Inverter power: 20kW AC output voltage: three phase Solar panel type: mono or poly

LV-BAT-R5.12Aa is a lithium battery with an operating voltage range between 45.6~56.2V. It is designed for residential energy storage applications and works together with a low voltage hybrid inverter.LV-BAT-R5.12Aa is not suitable for supporting life-sustaining medical devices. LLV-BAT-R5.12Aa ihas built-in BMS (Battery Management System), which can manage and monitor cells information including voltage, current and temperature. Besides that,BMS can balance cells charging to extend cycle life.BMS has protection functions including over-discharge,over-charge, over-current and high/low temperature;the system can automatically manage charge state,  discharge state, and balance state. Multiple LWBAT-R512Aacan be connected parallel to expand capacity and power 15 LV-BAT-R5.12Aa can be connected in parallel at most

Characters Transformerless with three level topology Max efficiency up to 98.6% Dual MPPT inputs accommodating wide voltage range Compact structure design Complete protection function such as anti-islanding, short circuit, overload Easy installation and free maintenance WiFi or GPRS (optional) communication Component brands Specification Model No ST17KTL ST20KTL ST25KTL DC side/Input parameters Max. DC power [W] 18500 22000 25000 Max. DC voltage [Vdc] 1000Vdc. 1000Vdc. 1000Vdc Min. System start/Shut down voltage [Vdc] 250 250 250 MPPT voltage range[Vdc] 250~850 250~850 250~850 Max. input current [A] 25A*2 25A*2 25A*2 Number of MPP trackers 2 2 2 Strings per MPP tracker 2 2 2 AC side/output parameters Nominal output power [W] 17000 20000 25000 Maximum output power [W] 18500 22000 27000 Nominal output voltage/range [V] 400V/ 280-490V（adjustable) AC grid frequency/range [Hz] 50Hz,60Hz(auto-selection) / 44Hz-55Hz; 54Hz-65Hz Maximum output current [A] 25 30 36 AC connection(with PE) 3W/N/PE 3W/N/PE 3W/N/PE Current distortion(THDi) [%] <1.5 <1.5 <1.5 Power factor [%] >99.95 >99.95 >99.95 Efficiency Maximum conversion efficiency[%] 98.5 98.6 98.8 European efficiency[%] 98.1 98.2 98.3 MPPT efficiency[%] 99.9 99.9 99.9 Safety and protection yes DC reverse-polarity protection yes Anti-islanding / Overvoltage protection yes Short circuit protection yes Leakage current protection yes Grid monitoring / Ground fault monitoring yes DC/AC side varistors(thermally protected) yes General Parameters Dimension(L/W/H)[mm] 505*525*245 Weight (kg) 37 Embedded DC Switch Optional Night power consumption[W] <0.2 Isolation type Transformerless Protection degree IP65 according to IEC60529 Operation temperature[ºC] -25 ~ 60 Cooling concept Natural convection Acoustic noise level[dB] <25 Operating altitude[m] <2000 without power derating Display Graphic LCD Communication Interface Standard WIFI; GPRS(optional) Certificates and Approvals CE-(EMC/LVD) : EN(IEC) 61000-1/-2/-3/; EN(IEC) 62109-1/-2;IEC 61727/62116;G83-3/G59-3; EN50438;VDE-0126-1-1;VDE-AR-N4105;AS4777.2;AS4777.3 Projects

The 50kw off grid solar system is designed for farm or hotel use. It can compatible with grid or generator. Solar is priority, gid and generator will be on standby mode. Inverter power: 50kW power frequency inverter AC output voltage: Three phase 208V or 380V Battery voltage: DC220V Battery type: Gel battery or LiFePO4 battery Solar panel type: Mono or poly

Flexible solar panels differ quite from rigid, rectangular, glass-encased standard solar panels typically found on rooftops. Rather, flexible solar panels come in all shapes and sizes and are expected to be used in a greater number of situations than standard panels Whereas portable solar panels contain solar cells mounted in a lightweight, often plastic frame and thin-film panels are made of materials like copper, selenium, and gallium, flexible and standard solar panels use solar wafers to convert sunlight to electricity. Most often, flexible panels use wafers made from silicon, though they are far thinner than those in standard panels-as thin as merely a few micrometers in width. Whereas standard panels are sandwiched between layers of glass, flexible panels are placed between layers of protective plastic. 

The solar energy storage inverter can be used for both on grid and off grid solar systems, it integrates controller and inverter. During the daytime, the PV array generates electricity to provide power either to the loads, or  to the grid or charge the battery.  The battery can be charged either by PV power or by grid, the power stored in the battery can be released whenever the loads require it.  Moreover ,the inverter can give three phase unbalanced output accroding to set up, to make a most flexible power solution.

The solar hybrid AC/DC air conditioner can work without battery, it works with unstable solar panel DC power at day time. At night or rainy days it automatically get grid AC power. It's  mainly used for school classroom, hospital, restaurant, shops, office… With APP monitor and control function through WIFI