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Working mode and wiring precautions of UPS uninterruptible power supply. The UPS uninterruptible power supply system has a wide range of applications and is widely used in enterprises and institutions such as supermarkets, shopping malls, and banks. It can not only stabilize voltage, but also prevent data loss. There are many UPS power supply brands, and different brands have different performance advantages. Therefore, for the majority of users, in order to better utilize the efficiency of UPS power supply, they should have an understanding of the relevant working methods.

Working mode of UPS uninterruptible power supply

1. Normal operating mode; The normal operation mode refers to the UPS uninterruptible power supply system. When the mains power is in a normal state, the machine will convert the AC power of the mains power into DC power, and then charge the battery as a backup power source for use in case of power interruption. Of course, at this point, it should be clear that the uninterruptible power supply system can work even without a power outage. For example, low voltage, momentary spikes, etc. can affect the normal operation of the equipment. When the UPS system is in operation, the corresponding load devices will supply stable and clean power.

2. Battery working mode; Once there is an abnormality in the mains power supply, the DC power stored in the battery is converted into AC power. At this time, the input of the inverter is supplied by the battery pack, and the inverter continues to supply power to the load for continued use, achieving the function of continuous power supply. The power source of the UPS power system is the battery, and the capacity of the battery is limited, so the UPS system will not continuously supply power like the mains. Therefore, no matter how large the capacity of the uninterruptible power supply system is, its power supply time will be limited when it is fully loaded. To extend the discharge time, it is necessary to purchase a long delay UPS power supply.

3. Bypass operation mode; Important refers to when the emergency power supply is overloaded or the machine malfunctions, the UPS uninterruptible power supply will invert and output, converting to bypass output, that is, direct power supply from the mains. At present, there are many places that produce UPS power supplies, among which Shenzhen UPS power supplies are highly favored by consumers.

4. Bypass maintenance method. When the UPS power supply is undergoing maintenance, the bypass is manually set to ensure the normal power supply of the load equipment. After the maintenance operation is completed, the UPS power supply is restarted, and the UPS power supply is now running normally.

Precautions for UPS power wiring

1. Confirm how much DC voltage the UPS needs to connect to

2. Connect the batteries in series or parallel to obtain the required voltage

3. Identify the positive and negative poles and connect them

4. The connection method of each battery in each group of batteries is: series connection

5. The connection method between each group of batteries and other groups of batteries (i.e. group to group) is parallel connection

6. It is strictly prohibited to connect batteries of different groups in series

Misunderstandings in selecting UPS power wiring diagram

Maintenance free battery is the most important component of UPS power supply, and its cost is also the highest in the entire product. But some businesses, in order to make illegal profits, often replace the maintenance free batteries in mid to high end UPS power supplies with miscellaneous or counterfeit brand batteries, and then sell the maintenance free batteries of the removed brand UPS power supplies separately. The profit from this trade and sell is quite astonishing. Just like the well-known case of mobile phone battery swapping, why are those inconspicuous small shops selling phones cheaper than big shops, while the original accessories they sell are not cheap at all? That's the problem. The damage caused by inferior batteries is significant, mainly manifested in short inverter time and insufficient power supply.

Can the UPS power supply be connected to an external socket?

UPS power can be connected to an external socket, but there are a few points to note:

1. The total power of the appliances used for external sockets and the existing UPS appliances cannot exceed 70% of the UPS capacity.

2. Do not plug in inductive loads such as electric motors, such as impact hammers, hair dryers, vacuum cleaners, etc.

3. The quality of the external socket itself is good, and products from reputable manufacturers should be selected.

4. Prevent dust and water from entering the socket and causing short circuits or electrical leakage.

5. If not used for a long time, the external socket should be unplugged to prevent others from misusing it.

Instructions for using UPS uninterruptible power supply

1. Before starting up, it is necessary to confirm that the polarity of the input mains wiring is correct. The UPS system has very strict requirements for the positive and negative poles of the power supply. Any carelessness can have disastrous consequences.

2. Pay full attention to the fact that the total load capacity cannot exceed the rated power of the UPS. If the total load capacity is too large, it will cause the batteries in the UPS to overload, and over time, it will damage the batteries and even the UPS.

3. After the mains power is interrupted and the UPS is powered by batteries and automatically shut down, do not use UPS batteries for power supply. Excessive discharge will only rapidly reduce the battery life of the UPS.

4. When there is an abnormality in the mains power supply and the UPS switches to battery power, the computer system in the load should be immediately shut down. Do not assume that the battery has been used for a long time, and even continue to play games or work during the power supply period.

5. Unless otherwise specified by the UPS itself, do not connect external long-lasting batteries as this may cause UPS to malfunction due to increased power.

6. Please do not place magnetic objects such as magnets on the UPS, otherwise it may cause data loss in the UPS's internal memory, making the machine unable to perform its intended functions.

As an important device in computers, UPS uninterruptible power supply is crucial in protecting computer data, ensuring the stability of grid voltage and frequency, improving grid quality, and preventing the harm caused to users by instantaneous and accidental power outages. The above is a detailed explanation of UPS wiring diagrams and four working methods. I believe everyone has a general understanding. It is important to compare these knowledge carefully in daily work to make it easier to master.

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