On-line UPS means that no matter whether the grid voltage is normal or not, the AC voltage used by the load must pass through the inverter circuit, and the inverter is always in working condition. When there is a power failure, the UPS can immediately convert its stored electric energy into AC power through the inverter to supply power to the load, thereby achieving the switching goal of zero interruption of the output voltage.
When the 10kva online UPS is normally powered on the grid, the input voltage of the grid passes through a noise filter to remove high-frequency interference from the grid to obtain pure AC power, enters the rectifier for rectification and filtering, and converts the AC power into smooth DC power(commercial Offline UPS system). It is divided into two ways, one way enters the charger to charge the battery, the other way supplies the inverter, and the inverter converts the DC power into 220V, 50Hz AC power for the load.
Power frequency online UPS is a style with higher requirements in UPS power supply design. It is different from the general UPS power supply design. Its main difference is that it emphasizes the anti-interference and high reliability of UPS, and it separates the load and power supply. Isolation, so that the output port does not contain DC components, the filtering is more thorough, and the waveform is more pure, reducing the possibility of load damage and harmonic distortion coefficient, thereby reducing the impact of the load on the power grid.
The industrial frequency UPS power supply has a unique standard input/output transformer, which can isolate the current from the input. In an industrial environment, some external equipment is a large input, such as pumps, engines, etc. These can easily cause current fluctuations and affect the safety of the load. Therefore, galvanic isolation is particularly important in this field.
The components of the industrial frequency online UPS power supply can be designed according to the customer's specifications and needs. Each component can withstand higher rated power and has a long life, which is designed to ensure the safety and durability of the user's equipment operation process.