How often should the UPS battery be replaced? The uninterruptible...
What are the signs of the UPS internal short circuit?
Uninterruptible power supply (UPS) is an important device to protect electronic equipment, and its stability and reliability are important factors to ensure power supply. However, an internal short circuit in the UPS may cause device faults, or even damage to the device or security risks. Understanding the signs of UPS internal short circuit is of great significance for users to take timely measures to avoid unnecessary losses. The following are some common UPS internal short circuit phenomena and signs.
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Input circuit breaker trip
If the input circuit breaker trips during the UPS startup, it may be caused by an internal short circuit or power component damage in the UPS.
Buzzer ringing alarm
The buzzer ringing alarm occurs when the UPS is in normal use. The alarm may be caused by a short circuit at the output end or a fault in the inverter circuit of the UPS.
Abnormal electrolyte specific gravity
When the battery internal short circuit, the electrolyte specific gravity will be lower than normal batteries, open circuit voltage is also relatively low.
Rapid voltage drop
When the access circuit is discharged, the voltage of the short-circuit battery drops rapidly.
Low electrolyte density
When open, the electrolyte density is very low, and the electrolyte will freeze in a low temperature environment.
Charging anomaly
When charging, the battery voltage rises slowly, always maintains a low value, and sometimes even drops to zero.
Abnormal temperature rise
When charging, the electrolyte temperature rises very fast, while the density rises very slowly or almost no change, and the electrolyte gas is slow or no gas.
Abnormal performance of the series battery
When connected in series with other normal batteries, the plate of the short-circuit battery will appear deep vulcanization phenomenon, and the color of the positive plate may change.
Capacitor explosion
The capacitor explosion failure may cause the output power failure or flash failure of the parallel system, affecting the load.
Inverter automatic shutdown
In addition to the capacitor explosion of the single UPS in the inverter automatic shutdown state, the rest of the UPS appears to be in the "normal" inverter power supply state.
Input switch or total input switch trip
The inverter of the UPS with a capacitor explosion has an internal short-circuit fault, resulting in an instantaneous short-circuit of the output of other UPS inverters, and an instantaneous increase in output current, resulting in an instantaneous overload of the normal UPS, and resulting in a trip of the related input switch.
CONCLUSION
The internal short circuit of UPS has a direct impact on the safe and stable operation of the equipment. When using UPS daily, users should always pay attention to the above signs and regularly maintain the UPS. If an exception occurs, handle it in a timely manner or contact professional service personnel to ensure the normal running of the device and protect important electronic devices and data. Through good monitoring and maintenance, the occurrence of internal short circuit can be effectively prevented and the service life of UPS can be extended.
UPS BATTERY SERIES
UPS (Uninterruptible Power Supply) batteries are an important component of power supply systems designed to provide stable power support for electronic devices.
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