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1.Off line UPS in the normal power supply directly supply power to the load from the city power, when the city power beyond its work range or power is off, switch to the inverter power supply through the switch. Simple structure, small size, low cost, but the input voltage range is narrow, the output voltage stability accuracy is poor, there is a switching time, and the output waveform is generally square wave.

2.Online UPS when the normal city power is normal, city power supply DC voltage to the inverter, through the inverter supply alternating current to the load, when the commercial power is abnormal, the inverter battery provides energy to keep inverter always in working state. The characteristic is that it has a very wide input voltage range, no switching time and high output voltage stability, which is especially suitable for occasions with higher power requirements. At present, the power greater than 3KVA is almost 3KVA online UPS.

3.When the city power is normal, the city power supply electricity directly to the load. When the city power is low or high, through the online interactive UPS internal zener voltage regulator circuit output, when the city power failure or abnormal, via switch turn to inverter battery power supply. There is a wide range of input voltage, low noise, small size and other characteristics, but also exist switching time.

High frequency online UPS, this UPS mainly adopts the drawer type high intelligent modularized design, through changes in the cabinet UPS modules to meet power input and output reliability requirements, with great flexibility, achieve the best cost performance. With easy insertion function, not only can increase or decrease the module to meet the power output and reliability requirements, can maintain online as long as the redundancy allowed, to achieve zero maintenance time. With the full control technology, concentrate on the most advanced technological achievements in the field of power electronics and automatic control, which is a milestone of the technological revolution in the UPS industry.

UPS module and communication module can be replaced online without affecting the normal work of other parts, the new addition module can be added to the system and does not require any calibration action, expansion and maintenance are very convenient. Users can choose different modules according to the number of 10KVA to 200KVA between the structure of a suitable capacity of the modular UPS system, the configuration is very flexible. For the future expansion, simply insert a few UPS module, you can easily complete. If the user left margin when first installed the switch and power line, when load increases, just buy the module UPS to expand the capacity of UPS, completely avoid the shortcomings of traditional UPS first equipment investment is too large, saving cost.

SOROTEC HP9335C 10-20KVA High Frequency Online UPS

Modified sine wave is relative to the sine wave, and now the main output waveform of the inverter is the modified sinewave. The waveform of inverter is mainly divided into two categories, one is the (pure) sine wave inverter, the other is square wave inverter. Sine wave inverter output is the same as our daily use of the power grid, even better sine wave alternating current, because it does not exist electromagnetic pollution of the power grid.

Square inverter output is a poor quality square wave alternating current, it swift from the maximum positive value to the maximum negative value almost at the same time, so that caused severe instability to the load and the inverter itself. At the same time, the load capacity is poor, only 40-60% of rated load, with no inductive load. If the load is too large, the three harmonic components contained in the square wave current will increase the capacitive current flowing into the load, serious damage to the load when the power filter capacitor.

In view of the above shortcomings, in recent years, modified sine wave inverter is widely used, there is a time interval while the output waveform swift from the maximum positive value to maximum negative value, the effect improved, but modified sine wave is still composed of line, still belongs to the category of square wave, the continuity is bad and dead zone exists.

The modified sine wave inverter is generally used for the non isolated coupling circuit, while the pure sine wave inverter is designed by isolation and coupling circuit. Its price is also a lot of difference. Modified sine wave switching inverter power supply, not only eliminates the cumbersome power frequency transformer, but also greatly improve the efficiency of the inverter.

Modified sine wave switch mode inverter power supply with PWM mode generates a modified wave output, in the inversion process, due to the use of a specialized intelligent circuit and high power field effect tube, greatly reducing the power loss of the system. And the soft start function is added to ensure the reliability of the inverter. If the power quality requirements are not very high, it can meet the most demand for electrical equipment, but it still exists 20% of the harmonic distortion, the problems in the operation of precision equipment, also can cause high frequency interference to the communication equipment.

SOROTEC IG3110C 500-2000VA Modified sine wave inverter

We sincerely invite you to attend SNEC PV POWER EXPO 2016 at the Shanghai New International Expo Centre on 24-26th May 2016. SOROTEC will present innovative green power products in the exhibition.

We are looking forward to your coming at E5-113/E5-115. Our team is ready to serve you by professional attitude and excellent team spirit.

SOROTEC is a High-Tech Enterprise which specialized in Research, Design & Manufacturing of Power products. With more than 10 years experiences in overseas market, SOROTEC is committed to providing high quality products with competitive price and cordinated service to meet diverse requirements from customers. As a power solution expert, SOROTEC is dedicated to continuously designing, manufacturing, marketing, and introducing a complete line of UPS, inverters, and solar power products to the demanding power market.

Hall: E5
Booth N.O.: E5113-115
Time: 24-26 May 2016
Venue:Shanghai New International Expo Centre

Contact us:
Website: www.sorotecups.com
Email: ups@soroups.com
Tel: +86-755-81495850

Frame type modular UPS, compared with traditional vertical (tower type) structure UPS, can be installed in the standard cabinet, save space, is convenient for installation and use and maintenance, is able to use a short power cable connection. By reducing the fault point between the key equipment and the load, the modular type UPS can improve the availability of the whole system.

The modular UPS includes rectifier and inverter, some also include static bypass switch and auxiliary control circuit, CPU main control board, etc.. The biggest advantage of modular UPS is able to improve the system reliability and availability, each normal failure and will not affect other modules in a module, and through the hot swappable to shorten the system installation and repair time.

In addition, the modular UPS can give users a better scalability, which also has played a very good protective effect for the user’s investment.

The installation and commissioning of modular UPS begin in the factory. Based on standardized modules, can develop a unified standard in product design and production and manufacturing process, let all the components of the whole system can display the best performance, also can avoid system failures due to compatibility problems.

Rack type modular UPS can be configured according to the current business requirements, and can add more modules in the future. The optimization ability of the system significantly reduces the total cost.

Modular design provides great flexibility in reconfiguration of power to meet changing business requirements. When installing, upgrading, re configuring or moving the modular system, the independent component and the standard interface and the simple operation can save time and cost.