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Remote area telecom solar system generally includes power generation equipment, energy storage equipment, energy conversion and manage equipment. Power generation equipment has diesel generator, photovoltaic array, wind power generator or hydro generator. Storage equipment generally is battery or storage pool. Energy conversion and management equipment have DC converter, inverter and other equipment.

Diesel generator is the energy source of the power supply system in many remote areas, in order to obtain the maximum fuel efficiency and reduce the maintenance, need to maintain the load rate at 60% ~ 70% of the rated load capacity of the generator. The output power of the wind power generator can reach 250W~500kW, but it needs to select the proper wind field, and has the stable wind speed. Although the power generation cost is relatively low, it is necessary to select the construction in the moderate and stable River, the generator’s cost is relatively low, but the cost of the generator is high.

The telecom network require telecom station equipment to provide 7 * 24 hours of stable operation, not only distribute in the urban areas, but also in the desert, mountain island, covering a broad area, generally unattended, has high requirements on power supply reliability and life. Solar hybrid system convert solar energy into electrical energy directly, provide -48V voltage to telecom station by series and parallel PV modules, realization of static energy transform, compared with mechanical rotating parts of the generator, less maintenance workload. It is suitable for remote area power supply system which telecom station load is less than 2kW, especially in the background of the development trend of global crude oil prices, the cost advantage of telcom station solar system is increasingly obvious.

SOROTEC will attend the 120th Canton Fair (Oct. 15-19, 2016)in Guangzhou China.We sincerely invite  you to  visit us at the Booth Hall 10.3-F34 .We will exhibit  our newest UPS & Solar Inverter products in the booth.

Exhibition Name: 120^th China Import And Export Fair(Canton Fair)

Exhibition Date: Oct.15-19,2016

The Booth No.: Hall 10.3-F34

SOROTEC is a High-Tech Enterprise which specialized in Research,

The solar power generation system should have high reliability and security, as an important part of the solar power generation system, the inverter should have the following protection function.
1.Input under voltage protection. When the input voltage is lower than the specified under voltage value, that is less than 85% of the rated voltage, the solar energy inverters should be able to automatically shut down to protect and make the corresponding display.
2.Input over voltage protection. When the input voltage is higher than the prescribed over voltage disconnect value, which is higher than the rated voltage of 130%, the inverter should be able to automatically shut down to protect and make the corresponding display.
3.Over current protection. Over current protection of the solar energy inverters, it should be able to ensure that act timely when the load short circuit or current exceeds the allowable value, so that it can avoid the damage of the current. When the operating current exceeds 150% of the rated value, the inverter should be automatically shut down. When the current is returned to normal, the equipment can work properly.
4.Short circuit protection. When the inverter output short circuit, should have the short-circuit protection measures. Inverter short-circuit protection action time should not exceed 0.5s, after short-circuit fault exclusion, equipment should be able to work properly.
5.Reverse polarity protection. Solar energy inverters should be able to automatically protect when the positive input terminal of the inverter is connected with the negative input end of the negative electrode. After the polarity is connected, the equipment should be able to work properly.
6.Lightning protection. Solar off grid inverters should have lightning protection function, the technical indicators of the lightning protection device should be able to ensure the absorption of the expected impact energy.

Miniature solar inverter in the 1990s, but due to technical reasons, until after 2008, several professional miniature solar inverter manufacturers start production, truly entered the commercialization stage. In nearly 6 years, micro solar inverter technology gradually developed to mature. At present, micro solar inverter has appeared at least 3 generations of products.

The characteristics of the first generation of micro solar inverter:
1.In order to match the power of the component at that time, the power of the DC input terminal is low, and the corresponding output is low.
2.At that time, micro solar inverter products are all single component connected, and miniature solar inverters are daisy chain connected to each other.

The characteristics of the second generation micro solar inverter:
1.DC input and AC output, following the pace of the development of the component power, and due to the use of high power components at the current market, customers began to require DC input more than 300W.
2.Due to the product technology innovation, the integration degree improved further, the catamaran solar micro inverter appeared, some manufacturers can provide independent MPPT catamaran micro inverter.
3.The connection mode between the micro solar inverter developed into the hand in hand and the bus cable structure.
4.Mainstream products at the current market is the second generation solar micro inverter, a generation of products which realize the explosive growth of micro inverter sales. The micro inverter products have completed the marketniche transformed into the market success.

The characteristics of the third generation micro solar inverter:
Micro solar inverter technology innovation, three-phase micro solar inverter and off grid solar inverter etc., to fill the gaps in the market.

SSP3118C off grid solar inverter