CE+T Power FLEXA 200 400/400, Руководство пользователя

Страница: 48 / 69

ANNEXE 1. Battery Management with Flexa Technology and T4S
1.1. Introduction
Battery is critical element in a UPS. Many manufacturer offer high performances of their electronic but sometimes
forgot about providing an efficient and reliable battery management.
Battery is fragile and needs to be treated accordingly in discharge and recharge conditions. The purpose of this
document is to provide an overview of how TSI and Flexa manage the batteries, prevent their end of life and reduce
possible occurrence of thermal runaway.
1.2. CE+T Battery charging and discharging MODE
The purpose of a charger is to “refill” the charge tank of the battery. There are many other features which enhance the
convenience of the charger, or grant protection for the battery being charged. These built-in protection features is what
fundamentally elongates the battery’s life, or more correctly, prevents premature failure.
TSI technology provide those features:
•
higher current levels reduce recharge times (assuming the battery can accept charge at high rates).
•
voltage limits, current limits, and time out to reduce excessive gassing at end-of charge, and prevent dry-out.
•
modified voltage and current limits as a function of temperature reduce gassing and electrode damage.
•
BOOST or Equalize mode to equalize battery blocs periodically
CE+T Flexa and controller T4S battery operating mode are described below
1.2.1 MODE 1 BOOST
This mode need to be activated and configured according the battery data from the manufacturer
A CCCV (constant current, constant voltage ) algorithm to provide a “quick an fast recharge. Ideally to recover 80% of
the battery capacity in maximum 8 hours. This mode use a Uset voltage level associated to current limit protection
Figure 1. Typical recharge curve versus time for voltage and current.
48 – Flexa 200 - 400/400 – User Manual – v1.0