How to properly use and maintain the power of UPS

Many users of UPS power supply will think that as long as the UPS power is used, follow the instructions. Ultratech's technical support reminds everyone that this idea is unscientific and there are many things to know when using UPS power. Because of the correct use and maintenance of the UPS power supply, the UPS power supply can maximize its effectiveness. Extend the service life of the UPS.

UltraTech's technical support for this issue for you to do a detailed analysis of the following aspects:

First, a reasonable choice of UPS power installation location A good installation location is very important, place the UPS must have a good ventilation effect, away from water, flammable gases and corrosive agents, the ambient temperature is maintained between 0 ~ 40 °C, if it is When used at low temperatures for disassembly, condensation may occur. Once the ambient temperature exceeds 25 degrees, the battery life will be reduced by half every 10 degrees. At present, the batteries used in UPS power supply are generally maintenance-free sealed lead-acid batteries, and the design life is generally 5 years.

The UPS power supply should not be placed on the side. Keep the air inlet and outlet holes open. When the load is connected to the UPS, the load must be turned off and then connected. Then turn on the load one by one. It is forbidden to connect the inductive loads such as electric and copiers to the UPS. In order to avoid injury. When the UPS power supply is connected to a dedicated socket with an overcurrent protection device, the power outlet used should be connected to the protective ground; whether the input power line is plugged into the mains socket or not, the UPS power output may be live. To make the UPS power supply without output, turn off the switch first and then cancel the mains supply.

Second, UPS power supply for the first time there are skills to buy new UPS power, the UPS power into the 220V power grid, charging at least 12 hours to ensure that the battery is fully charged. Otherwise, the actual available capacity of the battery will be much lower than the nominal capacity of the battery. If UPS power is not used for a long time. It should be turned on for 24 hours every 2 to 3 months to allow it to be fully charged and allow the UPS power supply to work in the inverter for 2 to 3 minutes to ensure the normal life of the battery. Once the UPS power supply is connected to the mains, it starts to charge the battery pack. Press the power button for more than 1 second to start up the inverter.

Third, the UPS power supply can not be idle for a long period of time The excessive discharge of the battery and the long-term use of the battery for a long period of time to idle can make the internal resistance of the battery increase, and the chargeable and discharge performances deteriorate. For unused UPS power for a long period of time, let the UPS power supply use the charging circuit inside the battery to charge it for 12 hours before re-starting the power supply. For the standby UPS power supply, it is best to leave the UPS power supply in the inverter every other month. State work for 2 to 3 minutes to activate the battery. In addition, it is necessary to strictly control the charging current of the battery to not exceed the maximum charging current allowed by the battery. Because excessive charging current will lead to shortened battery life.

Fourth, the use of UPS power when the boot and shutdown sequence The correct power-off sequence should be to first turn on the UPS power supply to it, and then turn on each load, so you can avoid the momentary current impact of start-up damage to the UPS, in the shutdown The order of the opposite is to turn off the various loads before closing the UPS. When the commercial power is interrupted by the UPS, you should save your data and data as soon as possible and then shut down the computer. Otherwise, using the UPS power supply to work may cause the UPS to over discharge and shorten the service life of the UPS.

5. Avoid Overload Use UPS Power Supply When using UPS power supply, calculate the size of the load. To avoid excessive or too small load, excessive load will make the UPS power supply overloaded for a long time and shorten the use of UPS power supply. Lifetime; If the load is too small, the working circuit of the UPS power supply will work abnormally for a long period of time, which is also a certain hazard to the UPS power supply. A reasonable load should be controlled between 50% and 80%. Practice has proved that the UPS power output load control is about 60% is the best, the best reliability. When the UPS power supply is overloaded or the inverter fails, it will go to bypass mode. At this time, the UPS power supply does not have backup function. The power used by the load is directly supplied through the power system.

6. Use of AC Regulator After using UPS power, it is not necessary to add AC regulator. If it must be added, it should be added to the pre-stage of the UPS power supply, that is, the mains power is first passed through the AC voltage regulator, then the UPS power supply, and then to the load.

Seventh, the battery balanced charge has the skill At present many many UPS powers use in the valve control type lead acid battery (VRLA) from the beginning to be called the maintenance-free battery, this gives the user a misunderstanding, it seems that this kind of battery is both durable and completely No maintenance required. When the battery in the UPS power supply meets the following conditions, the battery shall be charged in a balanced manner: When the over-discharge causes the terminal voltage to be lower than the specified calibration voltage of the battery. For 12V small sealed lead-acid batteries, the discharge calibration voltage is 10.5V; for 24V batteries, the end-of-discharge voltage is 21V; for 96V batteries, the discharge calibration voltage is 85V. The battery was not charged in time after discharge; unused batteries were left unused for long periods of time. The mains power is interrupted, and a continuously floating battery discharges nearly half of the battery capacity.

VIII. Don't use diesel generators The UPS power supply should not be powered by diesel generators because its frequency is often erratic and unstable, affecting the normal operation of the UPS power supply.

Ninth, pay attention to the safe operation of the operator in the output power supply to the UPS should also pay attention to safety, because the UPS output voltage and current are relatively large, so when connecting the output power supply also pay attention to safety to prevent electric shock accidents.

When replacing the battery, first turn off the UPS power supply and disconnect from the utility power. Use a screwdriver with an insulated handle. Do not place tools or other metal objects on the battery. When the battery cable is connected, a small spark at the connector is a normal phenomenon and will not cause any harm to personal safety and UPS power supply. Never short-circuit or reverse the positive and negative terminals of the battery. When replacing the battery, it should not be replaced individually. It is best to replace it completely. It is also forbidden to use batteries of different amperage and different brands in combination.

Ten, make real-time monitoring The current intelligent UPS power supply has the operable performance characteristics such as microcomputer communication and program control. The corresponding software is installed on the microcomputer, the UPS power is connected through the serial/parallel port, and the program can be used to communicate with the UPS. Generally have information query, parameter settings, timing settings, automatic shutdown and alarm functions. Such as Winpower. Then through a dedicated serial control cable, the UPS power supply connected to the computer, and then through the RS232 and RS485 two kinds of protocol communication, you can achieve the UPS power supply without power input and automatic shutdown function when low power. And it can monitor multiple UPS power supplies connected to multiple serial ports at the same time. Among them, through the RS232 protocol, a serial port can only connect one UPS. Through the RS485 protocol, a serial port can connect up to 256 UPS power supplies.

Through the technical support of UltraSpec Technology, we believe that people must understand the importance of properly using and maintaining the UPS power supply. And how to properly use the UPS power supply, and how to do maintenance work on the UPS power supply.