Huabao Golden Warrior Power 2020—07—06

The correct startup and shutdown sequence of the UPS power supply should be to turn on the UPS power supply first, and then turn on the various loads, so as to avoid the damage caused by the instantaneous current impact on the UPS power supply during startup. The sequence when shutting down is exactly the opposite. The load finally turns off the UPS power supply.

Normal boot sequence

Since the general load has an inrush current at the moment of starting, and the internal power components of the UPS have a certain safe working area, although there is a certain margin when selecting the components, the excessive inrush current will still shorten the service life of the components , And even cause damage to the components. Therefore, the damage caused by the inrush current should be minimized during use.

Generally, UPS has strong impact resistance when working in bypass. This feature can be used to start the UPS in the following ways: first send the mains power to the UPS to make it in bypass operation, and then turn on the loads one by one, and turn on the impact current first. For a larger load, turn on the load with a smaller impulse current, and then turn on the UPS panel to make it in the inverter working state. When turning on, you must not turn on all the loads at the same time, or start with load.

Shutdown sequence

  The shutdown sequence is as follows: first turn off the loads one by one, and then shut down the UPS panel, so that the UPS is in bypass operation and the charger continues to charge the battery pack.

Use of backup UPS

The backup UPS generally has no load detection function in the mains state, and only depends on the input fuse for protection. If the user does not pay attention to this when using it, it is easy to carry too much load in the mains state, although the UPS may still be Continue to work, but once the mains is abnormally switched to battery inverter, the UPS will shut down due to overload protection. In severe cases, the UPS will be damaged. The above conditions will cause output interruption and bring certain losses to the user. Therefore, use the backup Special care should be taken not to overload the UPS.

Basic functions of UPS power supply

1). Voltage stability---a mains voltage is easily affected by the quality of the power transmission line. If the voltage is too high or too low, the life of the user equipment will be shortened, and the equipment will be burned in severe cases. The use of online UPS can provide stable voltage power , The voltage fluctuation is less than 2V, which can extend the life of the equipment and protect the equipment.

2). Power failure protection---In the event of a momentary power failure, the UPS power supply will immediately convert the battery DC power to AC power to continue power supply.

3). High and low voltage protection-when the mains voltage is too high or too low, the UPS built-in voltage regulator (AVR) will make appropriate adjustments to keep the mains voltage in the usable range. If the voltage is too low Or it is too high to exceed the usable range, UPS will convert battery DC power into AC power to continue power supply to protect user equipment.

4). Frequency stability --- There are two types of mains frequency: 50Hz/60Hz. The so-called frequency is the cycle that changes every second. When the generator is running, the sudden change in the power consumption of the client will cause the change of the speed to change. The frequency of the output power fluctuates, and the power converted by the UPS power supply can provide a stable frequency.