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Many industrial UPS environments, especially in some power generation applications, are likely to be in the higher ambient temperature conditions (>30 degrees) and particulate pollutants in the air. So require the industrial UPS can work in a large number of non conductive dust and high ambient temperature. Work in the ambient temperature which at least 40 degrees, and some occasions even up to 50~55 degrees.

On the contrary, the commercial UPS application environment is almost controlled within 30 degrees, and very clean. The use life of any UPS system will be decreased in a high temperature environment, the key components of the UPS which is the most vulnerable to high temperature environment is the industrial grade UPS components (such as DC capacitor) and the battery. In the high temperature environment may make their life shortened, unless choose high temperature capacitors.

In commercial UPS applications, UPS users may not require a longer service life of UPS. But in the key process control, usually requires UPS to have 15-20 years of life. Industrial UPS system has a built-in design margin, to ensure the actual operating life to meet customer requirements. In addition, industrial UPS equipment will also have a predictable parts replacement program, to ensure that the UPS in the higher average no fault running time over 15-20 years.

Compared with traditional UPS, modular UPS has a considerable advantage. Its advantages are mainly in the following three aspects:

1.Installation is simple, easy expansion, saving investment.
A modular type UPS power supply system can make the capacity on demand, with the development of business, and achieve “dynamic growth”. Both to meet the needs of the expansion of the late business, but also to reduce the cost of the user’s initial acquisition.

2.Parallel redundant, stable operation, high reliability.
In the rackmount modular UPS, power module is parallel redundancy, each module is equipped with input and output insurance, and input and output relays, any module failure does not affect the work of the whole system. In the traditional UPS products, the security of the user is generally used in the “1+1” or “N+1” parallel redundancy, only one fault tolerant. In the modular UPS system, users only need to buy the corresponding power module to achieve the “N+X” fault redundancy. Modular redundant parallel structure is more reliable than the traditional UPS.

3.Convenient maintenance, on-line processing, high availability.
Traditional UPS requires professional personnel to maintenance, while all modules of modular UPS are allowed hot plug, the user can be involved in maintenance, directly replace UPS standby module online. A modular UPS inherits the development of traditional UPS technologies in power device technology and manufacturing process, but the system architecture is based on the multi module parallel system, not only to achieve the hot swap of the system module, and to better handle the relationship between the system module independent operation, mutual cooperation and stable conversion.

SOROTEC can provide professional modular power solutions,high quality and reasonable price,looking forward to get your inquiry.

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.

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