博文

目前显示的是 五月, 2016的博文

The difference between online UPS, offline UPS and online interactive UPS

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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 cit

Main functions of MPPT solar controller

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Test the main circuit DC voltage and output current, calculate the output power of the solar array, and achieve the maximum power point tracking. Disturbance resistance R and MOSFET series together, under the conditions of the output voltage is basically stable, by changing the duty cycle of MOSFET, to change the average current through the resistance, and the current disturbance is generated. At the same time, the output current and voltage of the photovoltaic cell will be changed. By measuring the change of the output power and voltage of the photovoltaic cell before and after the disturbance, the disturbance direction of the next cycle will be determined. When the disturbance direction is correct, the output power of the solar energy board is increased, and the next cycle continues to move in the same direction. In this case, the disturbance and observation of the solar photovoltaic panels output up to the maximum power point. 12V 24V 48V MPPT Solar charge controller

Brief introduction of modified sine wave inverter

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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

The flexible system configuration of high frequency online UPS

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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 acc

Advantages and disadvantages of home solar energy system power generation

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In recent years, the rapid development of  home inverter system  is due to its unique characteristics. Its advantages are mainly in the following aspects: 1.Mainly composed of electronic components, does not involve mechanical components, no rotating moving parts, running without noise. 2.There is no combustion process, the power generation process does not require fuel. 3.There is no waste gas pollution in the power generation process, no waste water and waste. 4.Equipment installation and maintenance are very simple, low maintenance cost, reliable and stable operation. 5.Strong adaptability to environmental conditions, can work in different environments. 6.Be able to work under the condition of long time no one on duty. 7.It is easy to carry out the capacity expansion, expanding the scale of power generation. Although the solar power system has many advantages, so far, there are still many problems that have not been solved. These issues are mainly concentrated in the following

The difference between modular UPS and conventional UPS

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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 fa

SOROTEC will attend the 2016 Intersolar Europe( Germany )in June,welcome to visit us

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We SOROTEC will exhibit the 2016 Intersolar Europe(Germany) in 22-24th June,2016 .We sincerely invite you to visit our booth at hall B2,Booth No.B2.630E and share our new products at our SORO’s booth. Our company treasures every opportunity to meet with you. As a leading manufacturer of UPS or inverter devices in mainland China for over 10 years, SOROTEC offer high and  low frequency online UPS , outdoor UPS,  industrial UPS , telecom online UPS,  home inverters , solar inverter and related accessories.