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What are the consequences of UPS overload?

Overload of the UPS may cause the following consequences:

Reduced UPS efficiency

When the UPS load is too large, its internal converters and inverters need to consume more energy to maintain a stable output voltage, which leads to reduced efficiency of the UPS, increasing energy consumption and operating costs.

Shorten UPS life

Excessive load causes greater pressure on the UPS internal components, accelerating wear and aging. Especially for the battery pack, overload will cause the battery to overheat, expand or even explode, seriously threatening the safe operation of the UPS.

Affect device security

The main function of the UPS is to provide a stable and reliable power supply for electronic devices. When the load is too large, the UPS may not be able to provide enough current, resulting in unstable operation of the device or even damage to the device. In addition, overload can also cause UPS output voltage fluctuations, causing damage to sensitive electronic equipment.

Increased fault risk

The load increases the heat of the UPS internal components, resulting in poor heat dissipation. UPS that are in a high temperature state for a long time are more likely to fail, such as fuses, circuit board burns, etc. In addition, overload can also cause the protection circuit inside the UPS to fail, further increasing the risk of failure.

Affect the stability of the power grid

When the UPS load is too large, its internal current waveform may be distorted, resulting in harmonic pollution. These harmonic currents will spread through the power grid, affect the normal operation of other equipment, and even pose a threat to the stability of the power grid.

Increased maintenance costs

Overloaded UPS are more prone to failure, which means users need to invest more time and money in repairs and replacements. In addition, in order to ensure the normal operation of the UPS, users also need to check and maintain it regularly, which increases the maintenance cost.

Impact on user experience

When the load of the UPS is too large, its output voltage may fluctuate, causing unstable operation of the device. This will not only affect the user's work efficiency, but also may lead to data loss and equipment damage, which will bring losses to the user.

Overload protection action

The UPS has the overload protection function. When overload occurs (150% load), the UPS jumps to the bypass state and automatically returns when the load is normal. When severe overload occurs (more than 200% rated load), the uninterruptible power supply immediately stops the inverter output and jumps to the bypass state, at which time the front input air switch may also trip.

Blown fuse

The UPS is equipped with a fuse, when overload or load short circuit caused by the current is too large to blow the fuse, to protect the electronic equipment from the current damage, but also to avoid the electronic equipment due to internal failure caused by serious injury.

CONCLUSION

Therefore, in order to avoid these consequences, when using the UPS, the user should ensure that its load is within the rated range, avoid the occurrence of overload phenomenon, and regularly check and maintain the UPS to ensure its normal operation, and provide users with stable and reliable power supply protection.

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