The battery anomaly on the UPS

Battery energy storage part of the uninterruptible power supply system, it's a direct impact on the reliability of the power supply system. SILCON UPS external battery system of two batteries in series inside the machine, the middle point then zero, two sets of batteries without boost or converted to form a half-bridge inverter system DC positive and negative BUS. Main inverter is charging the battery at the same time, the positive and negative half-cycle corresponding to the charging of two batteries, the charging current is not necessarily identical, but normal are basically the same.

A, if the capacity of the battery is reduced to not enough to withstand the current load, under normal circumstances, the user is difficult to find. Interruption of electricity, UPS attempted battery discharge, the system will be low battery voltage shutdown, load crashes; When the front panel to do a battery capacity test, the alarm system will be reported bat weak load will not crashes; if the mains fluctuations, the situation is more complicated. The general UPS will power fluctuations turn the battery-powered, immediately shut down low battery voltage, load crashes;

If the two sets of open-circuit voltage of the battery is inconsistent (both 32 * N series single 12V battery), high low, the gap is not reflected as two sets of battery charging current, the gap is too big, the performance for charging excessive noise.charging current final by the mains, and finally lead to flow through DELTA transformer secondary side current asymmetry DELTA inverter poor working conditions, the noise is inevitable. Replaced battery UPS work on normal.In short, the battery is very important for uninterrupted power supply system, charging one thousand, electricity moment. Discover the battery hidden reduce due to power failure caused by the battery, it is the obligation of each power system defenders.

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