Connection skills of UPS battery

The ups battery has DC voltage under open circuit state and stores certain energy. Theoretically, the current of positive and negative short circuit is infinite, which is enough to melt the pole, damage the installation tools (such as spanner), and ignite and emit light. If there is no breakpoint in the short circuit circuit and the short circuit can not disappear in time, the protective layer of battery connecting line will melt due to long-time over-current

The ups battery has DC voltage under open circuit state and stores certain energy. Theoretically, the current of positive and negative short circuit is infinite, which is enough to melt the pole, damage the installation tools (such as spanner), and ignite and light. If there is no breakpoint in the short circuit circuit and the short circuit can not disappear in time, the battery connecting line will melt the protective layer due to long-time over-current The plate was bent and deformed until burning, causing fire accident. In the installation of nonstandard UPS system, the battery burning accident occurs frequently when the circuit breaker in the circuit fails due to DC short circuit due to some reason. I think we have learned the seriousness of the consequences of battery short circuit. It's dangerous to install batteries, but it's easy to install batteries as long as you keep your mind clear and install them carefully.

Next, a brief introduction of UPS battery connection skills.

First of all, the mind should be clear, the installation environment should be clean, the number of people should be small, and the connection scheme should be clear. When installing, it is recommended to turn off the mobile phone without chatting with customers, let alone answering a series of questions from curious customers while installing. This will distract people and cause accidents easily. Before putting UPS batteries on shelves, physical inspection should be conducted and open circuit voltage should be measured, To avoid rework; when one end of the connecting wire is connected to the battery, the other end should be insulated or held in the palm of your hand to prevent it from hitting the wrong place and causing a fire. When one end of the connecting wire is connected, gently tap the pole to be connected. Even if the connection is wrong, it is just a ignition on the pole and wire, so as not to cause disaster; Or measure the pressure difference between the two points to be connected, if it is zero, it can be connected; when two people are connected at the same time, the corresponding UPS battery pack shall have no connection or potential relationship. Because two people are at the same potential (or become the same potential at any time, as if contacting the battery rack), if there is potential difference between the two connected batteries, the battery and the two will form a loop, which may cause electric shock accident; after the batteries are connected in series, the voltage between the total positive and the total negative of the ups battery pack is high. When connecting to the MCCB (battery switch), each wire should be connected to the MCCB first and then to the corresponding one Or leave a breakpoint in the battery pack to connect the MCCB with the ups battery pack, and then connect the breakpoint; for multiple groups of parallel batteries, each group should be left with a broken end, and after the MCCB end is connected, use a multimeter to detect the polarity, and then connect the broken ends.