- What is UPS power supply
UPS is for uninterruptible power supply, which is a kind of uninterruptible power supply with energy storage device. It is mainly used to provide uninterruptible power supply to some equipment which require high power supply stability.
When the power input is normal, the UPS stabilizes the electricity and supplies it to the load. At this time, the UPS is an AC voltage regulator, and it also charges the battery in the machine.
When the city power is interrupted, UPS immediately supplies 220V AC power to the load by switching the DC power of the battery through the inverter to maintain the normal operation of the load and protect the software and hardware of the load from damage.
UPS devices usually provide protection against either too high or too low voltage.
2. Classification of UPS Power supply
■ Passive backup UPS power supply
It means that the inverter is connected in parallel and is simply used as a backup power supply between the city power and the load. When the city power is normal, the load is supplied completely and directly, the inverter does not do any power conversion, and the battery is powered by an independent charger; when the city power is abnormal, the load is completely supplied by the inverter. Passive backup UPS has the advantages of simple structure and low price, so it is often used in some non-important loads.
■ Online interactive UPS power supply
It means that the inverter is connected in parallel between the city electricity and the load and acts as a backup power source, while the inverter acts as a charger to charge the battery.
Through the reversible operation mode of the inverter, it interacts with the city power, so it is called interactive. When the city power is normal, the load is supplied by the improved city power, and the inverter acts as a charger to charge the battery, and the inverter acts as an AC/DC converter; when the city power fails, the load is completely supplied by the inverter, and the inverter acts as a DC/AC converter. Online interactive UPS has the advantages of simple structure, easy to implement, easy to parallel, easy to maintain and repair, high efficiency, low operating cost and high reliability of the whole machine, and its performance meets some load requirements, so it is especially suitable for some computer equipment with distributed power supply in the network.
■ Double conversion UPS power supply
It means that the inverter is connected in series between the AC input and the load, and the power supply continuously supplies power to the load through the inverter. When the city power is normal, the city power supply to the load through the rectifier and inverter; when the city power supply is abnormal, the accumulator supplies power to the load through the inverter. Dual-transform UPS is the mainstream product of UPS power supply, which has good performance, high voltage stability / frequency stability, strong function, hot backup connection and parallel redundant connection and so on.
3. Application Field of UPS Power supply
UPS uninterruptible power supplies are widely used in data centers, mines, aerospace, industry, communications, national defense, hospitals, computer business terminals, network servers, network equipment, data storage devices, emergency lighting systems, railways, shipping, transportation, power plants, substations, nuclear power plants, fire safety alarm systems, wireless communication systems, program-controlled exchanges, mobile communications, solar energy storage energy conversion equipment, control equipment and its emergency protection system and other fields.
UPS not only has the function of uninterrupted power supply, but also has the functions of voltage and frequency stabilization, attenuation or elimination of all kinds of clutter interference.
UPS with isolation transformer also isolates the city power from the load to improve its shock resistance and power safety performance. With the popularization and application of power automation equipment such as power communication, unattended substation and microcomputer monitoring, the power system puts forward higher requirements for UPS power supply, and the selection and maintenance of UPS is becoming more and more important.
4. UPS Power supply of JONCHN Group
Product introduction
Combined with the technical characteristics of traditional UPS models and the requirements of modern data intelligence, the series UPS power supply of JONCHN Group not only realizes the modular design, but also ensures the reliability and availability of the system. Series modular UPS adopts on-line double conversion and modular full redundancy design, based on the new generation of new double DSP all-digital technology, matches the product’s own advanced adaptive master-slave decentralized control logic, making all the performance indicators of this series of products reach the advanced level of the industry, and is an ideal choice for reliable, high-quality uninterrupted power supply in all industries.
Product characteristics
- Excellent performance, high reliability, high efficiency, small size and beautiful appearance;
- The utility model has the function of stabilizing the voltage of the power supply, and there is no need for an external voltage regulator, and a bypass input is added on the back board to facilitate the user to use the printer;
- Wide range of input voltage, 140V-300V can ensure normal input in municipal electricity;
- It can connect to the power grid of self-contained generator
- Strong load adaptability, able to connect with printers, computers, fax machines, etc.
- Power restart function; output analog sine wave when inverter;
- It has the function of three-stage voltage stabilization and high voltage stabilization precision.
- A wide range of applications.
Product picture
Post time: Apr-03-2024