High Power MPPT Solar Charge Controller Off-grid Solar Power Systems

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1 pc
Supply Capability:
1000 pc/month

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High Power MPPT Solar Charge Controller

GSC Series modular MPPT solar controller unit is a complete solar energy conversion, tracking, protection combined systems, this series product is developed depending on the needs of green power by EAST company. The solar energy collected by the PV panel is transferred into stable DC power output, advanced Maximum Power Point Tracking Technology (MPPT)and intelligent battery management system,intelligent monitoring system can be connected to PC by RS232/USB/RS485,remote monitoring by SNMP. Suitable for a variety of off-grid solar power systems.

Efficient and stable,maximize the output power
● High power modular design,can parallel 8 pcs,maintenance is simple and fast, efficient and reliable system for easy expansion.
● High speed DSP the core control system and MPPT Maximum Power Point Tracking Technology,ensuring maximum output power of the system, improving the power generation efficiency of photovoltaic panels.
● Advanced multi-level control technology, switching losses smaller, more efficient.
● Professional cooling duct design, effectively discharge machine heat, to ensure stable operation of the controller
● Multiple input for the system, suitable for a variety of applications, roof, slope system.

Perfect protection design, safe and reliable
● Foolproof design is used in the system,ensure modules hot-swappable safety, providing safety operating for modules.
● PV input/output over/under voltage、PV reverse 、output anti-anti-irrigation、over temperature and other protections.

Smart battery management system
● Best charging mode can be used depending on battery type and capacity, to extend battery life.
● Over charging and over discharging protections.

Unattended and intelligent monitoring:
● After battery low voltage and automatically shut down, PV comes back,system will auto restart and charge the battery.
● RS232、USB and RS485 bus interface are available, real-time monitoring, testing can be done by communicating with PC,
SNMP(optional)net system is also available for remote real-time monitoring.




PV Input Range


Single Max Input Power



Battery Numbers



Max Charging Current

55-120pcs can be set(2V per pcs)

165-192pcs can be set(2V per pcs)

Max Charging Current


Equalizing Charging Voltage

(each one 2.4V)±1%

Float Charging Voltage

(each one 2.3V)±1%

Temperature Compensation

The voltage increases 2mV while temperature decrease 1℃

Shared Parameters

Max Efficiency

> 98%

Static Losses

< 5% (system rated current)

MPPT Accuracy


Dynamic Response

25%-50%-25% or 50%-75%-50% load change 3ms




Forced ventilation (fan speed changes with load)




PV reverse、BUS over voltage、output over voltage、output reverse、

PV over / under voltage


RS232 / RS485 / SNMP card(optional)

IP Level


Operating Temperature

From -20℃ to +45℃


0-95% (non-condensing)

Storage Temperature

From -25℃ to +85℃


1000m with rated power (increase 100m, reduce power 1%) Max.4000m

Dimensions (WxDxH mm)


Packing Dimensions (WxDxH mm)



Frame: 80kg ; MPPT power module: 5kg/unit

·         Q. What is an UPS and What it is for ?

An uninterruptible power supply (UPS) is a device that allows your computer or telephone switch or critical equipement to keep running for at least a short time or longer time when the primary power source is lost. It also provides protection from power surges, spikes, brownouts, interference and other unwanted problems on the supported equipment.

·         Q. How long the UPS to run when power goes?

This can take 3 paths.
1.You can pick a UPS that is rated for pretty much the full VA you need so it will be running at 100% of capability and will thus last 'n' minutes.
2.You can pick a UPS that is rated at a much higher VA value than you really need so, for example, is running at 50% of capability and will thus last for longer than the UPS from option 1.
3You can use extra external battery packs to run for longer. If charging capability allows, the more and the bigger batteries you take with, the longer time UPS runs. 
or using a generator after about 6 hours, it will be more cost-effective, with a short runtime UPS to bridge the generator start-up gap.

High Power MPPT Solar Charge Controller Off-grid Solar Power Systems

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Q:Installation and maintenance of photovoltaic grid - connected inverter
Before making an electrical connection, be sure to use the opaque material to cover or disconnect the PV panel. Exposure to sunlight, photovoltaic arrays will produce dangerous voltages. All installation operations must be done only by qualified technicians.
Q:What is the difference between a grid-connected inverter and an off-grid inverter? What are the advantages of a hybrid inverter?
Hybrid inverter is not a clear concept, but now both energy storage dual-grid inverter does have the ability to receive control system,
Q:The working principle of photovoltaic grid - connected inverter
Full-bridge inverter circuit to overcome the shortcomings of the push-pull circuit, the power transistor to adjust the output pulse width, the output AC voltage RMS that changes. Since the circuit has a freewheeling circuit, even if the inductive load, the output voltage waveform will not be distorted. The disadvantage of this circuit is that the upper and lower arms of the power transistor are not common, so you must use a special drive circuit or use isolated power supply. In addition, in order to prevent the upper and lower arm co-conduction, must be designed to turn off after the conduction circuit, that must be set dead time, the circuit structure is more complex.
Q:Solar grid inverter does not merge into the grid, direct access to the load to the load power supply?
The solar grid-connected inverter is not connected to the grid and can not be directly connected to the load to supply power to the load because there is no voltage.
Q:How the output voltage of the PV inverter and the grid-connected voltage are determined
due to the higher penetration rate of the car to go out to work or travel can be connected with the inverter battery drive electrical and various tools work. The car inverter output through the cigarette lighter is 20W, 40W, 80W, 120W to 150W power specifications. And then a large number of power inverter power
Q:Photovoltaic grid-connected inverter problem
Hello, the definition of the zero line is not caused by the transformer three-phase electric tail connection? I now do not understand why there is no isolation transformer AC output marked is N (zero line), and it is not the transformer three-phase power of the tail connection leads to, this is the zero line? The The
Q:What is the difference between a PV inverter and a solar inverter?
The main function of photovoltaic grid-connected inverter is to convert the DC power of the solar PV module into the same frequency as the sinusoidal AC power of the grid (the grid is generally AC power grid, DC can not be directly connected)
Q:The function of photovoltaic grid - connected inverter
After some additional voltage buffering, the left side of the bridge is usually 18 ~ 20khz switching frequency, the dc voltage is converted to ac voltage.
Q:What is the difference between low voltage grid connection and medium voltage grid connection?
For photovoltaic power plants when the power system accidents or disturbances caused by photovoltaic power plant grid voltage drop, in a certain voltage drop range and time interval, the photovoltaic power plant can ensure that non-off-line continuous operation.
Q:Generally a large grid-connected photovoltaic power plant will have several inverters
The use of a high-power grid-connected inverter into the grid, the need for line design is relatively simple, because the DC and AC lines are separated, the use of convergence box to summarize, DC bus and then into the grid inverter

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