ABB | SACE Emax 2
Ekip Touch - Additional functions
4 - Load Shedding
143 | © 2023 ABB | 1SDH001330R1002 - ECN000297030
4 - Load Shedding
Description
The
Load Shedding
function allows faults to be managed in installations which are able to function thanks
to the energy produced by renewable and local energy sources, especially the absence of power supply
caused, for example, by a fault on the MV voltage side.
This function is available in two versions:
•
Basic
, supplied with all the Ekip Touch Trip units
•
Adaptive
; can be purchased by means of the relative additional package and is available for all Trip
units with the
Measuring Measurements
package
All the parameters and measurements of the function are available via Ekip Connect; however, the Trip
unit allows certain of them to be set and displayed, as described below.
IMPORTANT: consult the Technical catalog or White paper of the function for full details
(page 15, 19).
Ekip Touch Parameter
Certain configuration parameters of the function are available in the
Settings - Load Shedding
menu
(page49).
NOTE:
it is advisable to first configure the parameters via Ekip Connect, and only then
operate on the Trip unit
Parameter Description Default
Enable
Activates/deactivates the function and its availability in the
parameters menu
Off
Version
Display of the version of the function, Basic or Adaptive
NOTE:
with the Basic version, the only parameter available is
Reconnection Timeout
--
Solar Plant present
Establishes whether the microgrid includes a solar energy system
(Off/On)
Off
SolarPlantNominalPower
Available with Solar Energy System Present = On, defines the
rated power of its solar energy system.
The value is given in kW and can be set within the range: 100 kW
to 65535 kW, in 1 kW steps
100 kW
ATS
Establishes whether the installation has an ATS system (Off/On) Off
Generator Power
Available with ATS=On, defines the power received from the ATS
branch; can be set within the range: 0 kW (. . . .) to 10000 kW, in 1
kW steps
. . . .
Frequency slope
Defines the instantaneous frequency variation that activates
Load
shedding
The value is given as absolute value (Hz/s) and can be set within
the range: 0.6 Hz/s to 10 Hz/s in 0.2 Hz/s steps
0,6 Hz/s
F W Warning
(1)
Control threshold of the minimum frequency that activates Load
shedding
The value is given as absolute value (Hertz) and can be set within
the range: 0.9 Fn to 1.1 Fn in 0.001 Fn steps
3 Fn
Reconnection
Timeout
Defines the time employed by the Trip unit between reconnection
of one load and the next, after the main CB has reclosed. The
value is given as absolute value (s) and can be set within the
range: 1 s ÷ 1800 s, in 1 s steps
10 s
NOTE:
Load shedding activates if the monitoring conditions defined by the Frequency slope
and F W Warning parameters are present at the same time
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