An uninterruptible power supply is an electrical device that can provide short time power when the mains supply fails, ensuring the stable and uninterrupted power supply to electric equipment. In general, UPS can be divided into backup uninterruptible power supply, online uninterruptible power source, and line interactive UPS.

As a professional China-based uninterruptible power supply manufacturer in China, SORO Electronics Company produces home inverter, line interactive UPS, high frequency online UPS, low frequency online UPS, rack mount uninterruptible power source, modular uninterruptible power supply, UPS battery cabinet, etc. In addition, we can design and build solar power system to meet your specific requirements. Our products are used in the power industry, communication systems, transport systems, industrial control centers, data centers, medical systems, financial systems, and many other fields.

In order to provide high quality online UPS, line interactive UPS, solar power system, and other products to our customers, we have made great investments in technical innovation and new product development. We have forged technical cooperative relations with many well-known, national and international academies and research institutes, so we have access to the most internationally advanced techniques for production. In fact, working with the National Lab in Maryland State in USA, we have developed a UPS with a maximum capacity of 800KVA and a power output factor of 0.9. This has the advantages of high efficiency, low energy consumption, low carbon, is environmentally friendly, and has a long service life. Such a product is of great use to our customers, and is widely popular.

At SORO, we maintain strict control of our quality inspections. We implement strict IQC, IPQC, FQC, OQC, QA, and other quality control measures in every process, including raw material selection, product production, packaging, and shipment. Additionally, our quality inspectors conduct sample inspections to test the appearance, size, and performance of our home inverter, online UPS, and line interactive uninterruptible power supply, etc., according to AQL-STD-105E.
As a result of our efforts, we are ISO9001:2008 certified, and our uninterruptible power source and other products have passed RoHS, CE, and UL tests. Their high quality and reliable performance make them popular in many countries and regions in Europe, North America, South America, the Middle East, West Asia, Southeast Asia, Australia, and more.
We are located in Shenzhen City in Guangdong Province, where we have access to abundant raw materials and labor, as well as multiple avenues for shipping, whether by air, land, or sea. As a result, we are able to reduce our production costs, and offer the best prices to our customers.

If you would like more information about our UPS or solar power systems, please click on the specific product page or contact us directly. We look forward to hearing from you.

What is a UPS?

UPS is the acronym of uninterruptible power supply. Since computers and other sensitive equipment and gadgets require consistent supply of power of correct specification to ensure proper operation, they need a UPS. There are a number of types of UPSs on the market, including off line UPS, on line UPS and line interactive UPS, to name a few.

1. Off line UPS
Basically, offline UPS is similar to domestic inverter described above. There are two different types of off line UPS on the market, as described below.
(1) In comparison with an inverter, the offline UPS has a lower changeover time between the mains and battery. Typically, changeover time in inverters is 500 milliseconds, while that in an offline UPS is 3-8 milliseconds.
(2) When the mains is available, an inverter provides the output as is the input mains. However, offline UPS has a built-in automatic voltage regular or AVR to regulate the output voltage close to 220V AC. So, now, input voltage ranging from 150v to 270v can be regulated or stabilized by UPS, and when the voltage is not in this range, the system will shift to battery, so that the output remains uninterrupted.
Offline UPSs are normal weight UPSs and are widely used for domestic computers.

2. Line Interactive UPS
In line interactive UPS, the battery to AC power converter is always connected to the output of the UPS. Battery charging is done when the input AC power is normal, and when the input AC fails, the transfer switch opens and then the inverter starts functioning to provide power to load immediately.

3. On Line UPS
In online UPS, the system always remains on battery, whether mains AC is present or not. When mains AC is available, the on line UPS provides power to DC supply of inverter section, and simultaneously it charges the battery. When mains AC is unavailable, the online UPS will run the connected load till the battery has a recommended dischargeable level.