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The Evolion is designed for 48 Vdc nominal power systems. The applications can be grid connected or off grid and the Evolion can
remain on float or cycled frequently over its useful life.
4.1 Application summary
The Evolion is a standalone battery system.
The Evolion is designed for installation in indoor or outdoor sites. The temperature can be controlled or uncontrolled. The enclosure,
compartment or area where the Evolion is placed should have a minimum protection index of IP55.
The Evolion discharges with rates equal to 2 hours of autonomy and higher runtimes. It re-charges fully in 3 to 24 hours (from a full
discharge). Typical applications include standby power for remote terminals, BTS, customer premises, underground vaults, huts and
DPCO for good power grid or poor power grid regions and in hybrid power and solar applications for off grid sites.
The Evolion is connected to the application with power cables and with an optional communication cable. Units can be connected in
parallel to increase the battery bank capacity and power but it is never allowed to build a series to increase the system voltage. The
Evolion can only operate on a 48 V bus.
The dimensions are optimized to fit with good volumetric efficiency in a standard 19” (upright orientation) and a standard 23”
equipment rack (sideways orientation). The module interface features are front accessed which allows it to adapt well in confined
roadside cabinet compartments. When the Evolion is integrated in the application, the following functions are built into each module.
4. Evolion operation
Figure 2.
Schematic view of Evolion
connected to application.
The following BMST software versions are compatible to connect and operate in parallel.
BMST software version
Parallel connect and operate
0.55 & 0.56
OK
0.57 & 0.58
OK
OK
0.59 & 1.00
OK
Upgrading all operating Evolions to the latest BMST software version is always recommended. Contact your local Saft representative
to upgrade procedure details.
See the Figure 2 below for a schematic view of Evolion installed in the application. For more details about the “Switch”, see chapter
The electronic switch (mosfets).
•
Compatibility with typical telecom rectifiers
(60 V maximum rated output)
•
Charge current regulation
•
Low voltage discharge cut-off (42 V)
•
Safety disconnecting through system level micro-controller
and mosfet contactor
•
Safety disconnecting through system level redundant
hardware safety chain or fuses
•
Safety disconnecting through cell level current interrupt
devices
•
LED’s, dry contact signal and RS485 communication bus
•
Operation status through LED’s and RS485 bus
•
State of charge and state of health status through LED’s and
RS485 bus
•
Automated internal heater operation
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