Lithium battery UPS power supply installation matters

In order to eliminate common-mode interference, UPS power batteries add filter capacitors between zero and live wires to ground. There are currents between zero and fire and ground, which may cause unequal currents on the zero and live wires, thereby tripping the circuit breaker with leakage. Therefore, the lithium battery UPS front stage and load circuit cannot be equipped with a circuit breaker with leakage protection, so as to avoid accidental power failure of the UPS battery and its load. In order to eliminate interference, the input neutral line and output neutral line of most lithium battery UPS power supplies are isolated or passed through a choke, so the neutral line of the UPS output (ie load) cannot be connected to the input when doing UPS power distribution. On the neutral busbar of the power distribution. The user can connect the UPS output (load) neutral line to a single neutral line bar. The UPS input circuit breaker is designed to individually control the on and off of the lithium battery UPS input power, so do not connect other electrical equipment to the lower port of the UPS input circuit breaker, so as not to affect the normal on and off of the UPS input power. When selecting input and output circuit breakers for UPS, firstly, the nominal rated voltage of the circuit breaker is required to meet the rated input and output voltage of the UPS. For example, single-in single-out UPS can choose single-pole (or N+1, or two-pole) rated voltage as AC220V or 250V circuit breaker, three-in-three-out lithium battery UPS can choose a three-pole (or N+3, or four-pole) circuit breaker with a rated voltage of AC380V or 415V. The connection between the UPS power battery and the external long-time delay battery should not be too long, otherwise the voltage drop on the battery connection is too large. In addition, users often pay close attention to the environmental temperature and humidity of the lithium battery UPS power supply host. Placing the battery with the host can also provide a good working environment for the battery. After using the lithium battery UPS power supply, there is no need to add an AC voltage stabilizer. If it must be added, it should be added to the front stage of the UPS, that is, the mains first passes through the AC voltage stabilizer, then the UPS, and then to the load. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How to change the lead-acid battery of UPS power supply to lithium battery?