The need for maintenance of UPS batteries
An uninterruptible power supply (UPS), batteries can be considered the backbone of this system, there is no UPS batteries can not be called a stabilization of the voltage regulator frequency (CVCF) outlet. While UPS inverter can be reached, because of the battery, electrical anomalies in the city when the drive directly the chemical energy of the Laptop battery electric power, transportation outside the exchange, use the continuous operation of equipment Power to continue.
At present, widely used in small and medium UPS Power Supply Maintenance-free sealed lead-acid batteries, which accounts for the power of UPS’s total cost 1/4-1/2 as much, not only that The repair itself also shows that nearly 50% or more of the power outage in connection with UPS battery UPS. UPS battery failure occurs mainly enough voltage, capacity, inadequate or transient discharge current is configured to boot does not meet requirements.
The normal use of the UPS, the battery life of 5 years or more, but a considerable part of the internal IBM ThinkPad T42 battery of the UPS is placed in service for less than a year started having problems worse, some imported brands and the manufacturing process of household batteries there are birth defects, the other is due to lack of maintenance necessary to cause acquired. It is worth noting that many use unit tests due to lack of maintenance actions required are not clear about their health system, for systems UPS battery UPS to work to stay hidden .
Use one to five years batteries, do not use it? Spent half a year if the battery can certainly be used? UPS battery is provided by the supplier must be good? — The necessary testing tools.
“A mouse, a pot of soup bad, drums festival dozen rounds, until a premature damage, not detected in time, then over time, other cells followed discarded. – Screening early.
Many UPS failure, the first is expensive to put the battery because the battery voltage due to various reasons, firstly reduced while maintaining the appropriate detection means, people did not. Spending tens of thousands of establishing back-up power system, due to the Dell Latitude D800 battery state of uncertainty, where the system failures, it is important to data loss, the consequences are unthinkable and its huge loss, with tens of thousands of people, far from being able to make money.
The state had known!
UPS battery test and maintenance of traditional methods of
UPS General Power requirements of the battery: in response to a voltage across some, the battery should be able to start the moment the output of high-current discharge characteristics, to meet a certain capacity to ensure Power Supply Inverter time.
1, with the multimeter measures the battery terminal voltage
Practice has proved that with a multimeter measuring UPS battery float voltage is unable to determine if the old battery is no longer valid. Thus, generally off-line or on-line measurement of the voltage across the hp F4486B battery, the battery terminal voltage measured is about 12V (12V for the battery case) and the minimum may not be less than 10.5V. Must be less than 10.5 V battery voltage, battery or has expired. If the battery charge after charge or activate the back-end voltage still can not reach 12V, the battery must be valid.
2, to test whether the UPS batteries to start an Instant high-current characteristics of output
UPS Off-line power by the municipal power supply power inverter switching time requirements of less than 7 ms, generally designed to be about 4-5ms. This means that, once the interruption of electricity supply, UPS batteries must be less than the 4-5 ms time required for the output load current. Failure to respond to some of the voltage across the battery capacity needs, but not less than 4-5ms-current in the discharge current to meet the requirement for substandard batteries. UPS Batteries major characteristics of the instantaneous current production in the closure of the power to test sony VGP-BPS2A battery performance without knowing the circumstances, there is a certain degree of risk, is generally not performed.
3, determine the battery capacity of the UPS
UPS battery capacity of traditional discriminant and determine the same manner as ordinary batteries, the entire group of system battery power supply and resistance of wire communications, eight or 10 hours rate constant current discharge, and then the first to reach the end voltage discharge of a particular time of battery discharge current monomer and to project their capacity.
The ability of traditional test offers the following advantages:
⑴ take the battery system, increasing the risk of system crashes;
⑵ discharge time, and the need to manually test cases, heavy workload, in addition to the UPS batteries are typically installed on the box-office type, the test is not easy;
⑶ wire resistance and is red-hot phenomenon of intensity bulky, dangerous work.
Maintaining the status quo of the internal battery UPS
UPS battery care and general maintenance of the low pressure system similar to the toshiba PA3465U-1BRS battery, when the introduction of new batteries, to require acceptance of the internal resistance of the battery voltage, test simultaneously ensure that their resistance internal consistency, and when the new battery into service, requires the maintenance of working environment suited to the battery temperature, require regular measurement of the voltage across the battery internal resistance, when the battery internal resistance or pressure is too great, it is necessary to have sufficient and regular deep cycle battery to verify battery performance priority poverty and the maintenance of cellular activity.
But the practical application, due to various conditions, limitations, UPS battery in full conformity with the maintenance of very few people mentioned above, the tools of first acceptance of a new battery, because of long time nor convenient to use, a considerable number of people do not This work will build on the battery in use, according to statistics, mainland China, approximately 95% of the UPS batteries lack of necessary maintenance UPS power supply for the future that the fault was concealed; Secondly, the new battery into service, because of the UPS battery is generally installed in the cabinet, the measurement is not out of convenience, low internal resistance and voltage measurement in accordance with existing conditions (98% or more of the UPS battery is not installed surveillance equipment), the majority of maintenance personnel can perform that at intervals of time, cut electricity to UPS batteries on the actual length of time of discharge system, at best, do click on the battery pack activation to maintain cell activity, and the battery performance and the advantages and disadvantages of remaining battery capacity and other important data, or no way of knowing.
Battery Maintenance UPS solution
Smart Battery Status Test and Analysis System Introduction
How to establish a set of valve-regulated lead acid batteries and effective maintenance and management methods, has been the large number of issues of concern to maintenance personnel. Recently, Pu Lu, Shenzhen Branch Intelligent Test Equipment Co., Ltd. has introduced a battery to maintain a comprehensive solution to address the current lack of necessary maintenance means UPS battery and tools, you can not only test Battery performance, look behind the monomer, but also on drums early warning, and effectively prevent the occurrence of defects, the effect well, here special to recommend it to customers to help establish an effective method for battery maintenance.