Datasheet

© EA Elektro-Automatik in 2021, Errors and changes excepted Datasheet_ELR_10000_2U_3kW_en
The principle of Energy recovering
This demonstrates, based on an application, how a ‘device
under test’ takes energy from the mains, converts it to DC
and feeds that into an EA device. The electronic load ELR
10000 converts this energy back into an AC current and
feeds it back into the mains..
General
The device series from EA Elektro-Automatik ELR 10000
are programmable electronic loads. The device is regene-
rative and feeds the energy back into the local grid with an
eciency up to over 96%. The ELR 10000 series includes
single and three phase units, which, together with the wide
input range, allows use with practically all global mains vol-
tages. The DC voltage and current are directed by the appli-
cation and the spectrum ranges from 0 - 80 V to 0 - 2000
V and from 0 - 6 A up to 0 - 1000 A in a single device. The
DC-Input operates as a exible input stage with a constant
power characteristic (autoranging), and a wide voltage, cur-
rent and power range. To achieve higher power and current
all units are equipped with a master-slave bus. This ena-
bles up to 64 parallel connected devices to be combined
into one system which can provide a load up to 1920 W and
64000 A. Such a system works as a single unit and can use
different power classes, only the voltage class must remain
constant. In this way a user can construct a 75 kW system
from two 30 kW and one 15 kW devices from the ELR 10000
range. Furthermore, typical laboratory functionality is provi-
ded. This includes an extensive function generator, alarm
and warning management, assorted interfaces and ports,
software solutions and many more functions.
AC Connection
The electronic loads in the ELR 10000 series are equipped
with an active PFC which provides a high eciency at a
low energy consumption. Furthermore, the devices in this
series provide a wide AC input voltage range. This extends
from 1-phase 110/120 V up to 240 V AC mains supply and
3-phase 208 V to 380 V, 400 V and 480 V AC mains supply.
The devices can be operated in the majority of global mains
supply. They adjust automatically, without additional con-
guration, to the available supply. In a 110/120 V and 208 V
AC grid a derating of the output power is set.
Energy recovering
The energy consumed in load mode is feed back into the
connected mains supply with an eciency of over 96 %.
This reduces cost: as the energy is not converted to heat as
in other loads, the energy costs are reduced. In addition, the
devices generate less heat requiring less cost intensive air
conditioning. One device is sucient for the whole applica-
tion, reducing investment and installation costs.