MGETM GalaxyTM 6000 : Specification guide
Parallel UPS, three-phase, 250 to 3000 kVA*
* Power rating for an N+1 redundant configuration
9 - Battery management
As the life of the batteries is very sensitive to operating conditions, the battery shall be managed in an optimum manner.
In addition to the devices indicated in section 8.4 "Batteries", the
9.1 - Self-test
The battery shall include a
ωas necessary by a manual command;
ωautomatically at
This
9.2 - Measurement of actual backup time
The battery function shall be combined with a system that continuously monitors the actual backup time available (AC source present) or remaining (AC source absent), according to the actual load on the UPS, the battery temperature and the age of the battery.
9.3 - Digital battery monitoring
Each UPS shall be equipped with a system for battery digital management.
Based on a number of parameters (percent load, temperature, battery type and age), the system shall control the battery charge voltage and continuously calculate:
ωThe true available backup time
ωThe remaining service life.
9.4 - Block by block monitoring
To further optimise battery availability and service life, it shall be possible to equip each UPS with an optional system to continuously monitor all battery strings and display a block by block failure prediction.
The system shall include the functions listed below.
ωContinuous measurement of the voltage of each block.
ωContinuous measurement of the internal resistance.
ωIdentification of faulty blocks (trend curves).
ωPossibility of replacing individual blocks.
ωRemoting of all information via Ethernet, dry contacts or JBus.
APC By Schneider Electric | Edition - 03/2009 | Spec. E - 11 |
