The function of APC UPS power supply is to ensure continuous high-quality power supply to the negative, even in the event of a complete power outage, they can still supply power to the load within a predetermined time (determined by the user). So, what operating mode does UPS power use to start working? Today, we will analyze:
1. Normal operation mode of power supply
The operation mode of APC UPS power supply is mains input. The AC mains power is converted into pure, surge free, and noise free DC power through a rectifier, which is used by the inverter. The inverter then converts the DC power into a more stable AC power output than the mains power, which is then output to the load through a static switch. At this time, the system supplies the load with APC UPS power supply.
2. Internal bypass operation mode
The operation mode of APC UPS power supply is that when the inverter encounters an abnormality, such as high temperature inside the machine or overload of the output load, exceeding the load range of the APC UPS power supply inverter, the DSP will automatically switch the APC UPS power supply from the inverter mode to the internal bypass operation mode to prevent system damage. At this time, the input is from the second power supply through the bypass circuit, and the static switch module outputs to the load, supplying the load to the bypass power supply.
3. Battery powered operation mode
When the operation mode of APC UPS power supply is no mains input, the APC UPS power supply is powered by the battery through the inverter and the static switch to the output load, so that the AC output will not be interrupted. When using battery power, the power supply time may vary depending on the number of batteries and the size of the load. Therefore, it is recommended to store data and perform normal shutdown procedures as soon as possible if the mains power is interrupted.
4. Manual maintenance bypass operation mode
The operation mode of APC UPS power supply is used when the host needs maintenance and the load power supply cannot be interrupted. Manually close the manual maintenance bypass switch, and the mains power is output to the load through the manual maintenance switch. At this time, the power supply to the load is from the mains power supply. The operation mode of APC UPS power supply can only be operated by professional maintenance personnel, and can be used for maintenance, cleaning, and upkeep of APC UPS power supply.
5. Emergency shutdown mode
The operation mode of APC UPS power supply is no power output. This operation mode must be activated when the UPS determines an emergency situation. Otherwise, when this function is activated, the APC UPS power supply will be turned off and result in no output voltage.