Please Select a Battery Maintenance Contract from the list below for details:
STANDARD Standard Battery Maintenance Contract
UPS Systems rely upon their batteries to provide the UPS with power in the event of a mains interruption or a mains failure. Checking cell, block or battery voltage does not provide accurate information of the integrity of the battery.
AVK|SEG (UK) LTD have invested in specialised battery test equipment that can provide an indication as to the condition of the battery and individual cells, without discharging the battery. This test can be included within the maintenance contract and also incorporates:
Part of the UPS system, is the battery which provides the back up power to the UPS when the mains disturbances or total black outs occur. The length of time the battery can support depends on two factors, a) the specified autonomy and b) the condition of the cells of each battery block.
Should any cells within the string become weak and build their internal resistance up or in the worst case become open circuit, this effects the whole battery performance. Where the UPS system battery is only one single string, this can have disastrous consequences, in that when the UPS system switches onto the battery, the battery is unable to provide the necessary back up as one single cell has failed open circuit. This will cause the UPS to shutdown and the supply to the critical load will be lost.
Most internal problems with the battery will cause the internal resistance to rise, loss of electrolyte due to venting or leakage through seals, alternatively high levels of corrosion of the grid bars where the plates are connected resulting in loss of conductive area.
Regular testing of the battery to determine the condition, will highlight weak cells, which should be replaced and prevents total battery failure when the UPS system requires the back up power.
AVK|SEG (UK) LTD is able to carry out impedance testing on individual cells which can detect any that are showing signs of weakening or are going open circuit when current is passed though the block.
The main advantage of impedance testing the battery as apposed to load testing is that following a discharge test the battery is unable to provide back up to the UPS until recharged. Whereas following the impedance test the battery would not have been discharged, therefore leaving the battery totally serviceable to provide back up power for the UPS system.
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Battery Maintenance Contracts Technical Data
