Why does the design of 26650 battery power supply have bypass input?

Why does the design of UPS power supply have bypass input? In some cases, how to prevent UPS power supply from switching to bypass power supply has always been a big problem. According to calculations, the load of the computer at the moment of startup is about 2 to 3 times the load during normal operation. Such a control method will definitely cause UPS overload and switch to bypass working mode at the moment of loading.

Why does the design of UPS power supply have bypass input?

The purpose of UPS power supply bypass input design is also to provide uninterrupted power supply to power electronic equipment.

The purpose of UPS power supply bypass design is: under normal city power, when the load of UPS power supply is too heavy or when the UPS power supply host fails, UPS will automatically jump to bypass and continue to supply power to power electronic equipment. At the same time, UPS is also designed with maintenance bypass. When the UPS host fails, the UPS can be switched to maintenance bypass, which can provide uninterrupted power supply to power electronic equipment while repairing UPS.

Each UPS uninterruptible power supply has bypass, which is a design requirement and one of the highlights of the equipment. The working principle of UPS is that when the power supply is normal, the power supply is bypassed to supply power to the power-consuming equipment, and the UPS system charges the battery for standby.

When the UPS is under maintenance, the normal power supply of the load equipment is guaranteed by manual bypass. When the maintenance is completed, the UPS power supply is restarted and the UPS switches to normal operation. This greatly reduces the availability of the UPS uninterruptible power supply.

What factors cause the UPS power supply to bypass?

If the UPS bypasses, it means that there is a problem with the UPS host itself, not the load or the mains input. It is recommended to find a professional to repair it. It is usually caused by UPS overload or output short circuit. Please check your load.

Inverter failure refers to a problem with the DC-AC circuit of the UPS. This is a very serious machine failure for the UPS, so in order not to affect the customer's power supply, the machine will generally switch to bypass power supply immediately.

There are many reasons for this situation, such as: the BUS voltage is too low or too high, the components on the machine fail, such as the inverter IGBT, etc.

What is the use of UPS power maintenance bypass?

UPS power bypass operation mode. This system operation mode is that when the inverter is abnormal, such as the temperature inside the machine is too high, or the output load is overloaded, exceeding the load range of the system inverter, the DSP will automatically switch the system 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. At this time, the bypass power supplies the load.

When our UPS power supply fails and needs to be repaired, our equipment cannot be powered off, so maintenance bypass is used. Our UPS power supply has input switches and output switches, as well as bypass maintenance switches. It should be noted that the maintenance bypass cannot be turned on casually.

According to the user's specific requirements for reliability, the UPS power supply can be configured with parallel redundancy to ensure the user's requirements for the use of uninterruptible power supply. According to the equipment model of the UPS power supply, there are two different types of uninterruptible power supply: external maintenance bypass and built-in maintenance bypass. When the abnormal UPS uninterruptible power supply is replaced, its power supply mode can be manually switched to the maintenance bypass power supply mode.

When the UPS is operating in maintenance bypass mode, the current flows through the maintenance bypass line and no longer passes through the main power unit and bypass unit. At this time, the smallest replaceable unit in the machine can be maintained to ensure the safety of maintenance personnel and normal power supply to the load.

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