Load Shedding - ABB SACE Emax 2 Series Operating Instructions Manual

4 - Load Shedding

Description The Load Shedding function allows faults to be managed in installations which are able to function thanks
Ekip Touch Parameter Certain configuration parameters of the function are available in the Settings - Load Shedding menu
143 | © 2023 ABB | 1SDH001330R1002 - ECN000297030
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).
(page49).
NOTE: it is advisable to first configure the parameters via Ekip Connect, and only then
operate on the Trip unit
Parameter Description
Activates/deactivates the function and its availability in the
Enable
parameters menu
Display of the version of the function, Basic or Adaptive
NOTE: with the Basic version, the only parameter available is
Version
Reconnection Timeout
Establishes whether the microgrid includes a solar energy system
Solar Plant present
(Off/On)
Available with Solar Energy System Present = On, defines the
rated power of its solar energy system.
SolarPlantNominalPower
The value is given in kW and can be set within the range: 100 kW
to 65535 kW, in 1 kW steps
ATS
Establishes whether the installation has an ATS system (Off/On)
Available with ATS=On, defines the power received from the ATS
Generator Power branch; can be set within the range: 0 kW (. . . .) to 10000 kW, in 1
kW steps
Defines the instantaneous frequency variation that activates Load
shedding
Frequency slope
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
Control threshold of the minimum frequency that activates Load
shedding
F W Warning
(1)
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
Defines the time employed by the Trip unit between reconnection
Reconnection of one load and the next, after the main CB has reclosed. The
Timeout value is given as absolute value (s) and can be set within the
range: 1 s ÷ 1800 s, in 1 s steps
NOTE: Load shedding activates if the monitoring conditions defined by the Frequency slope
and F W Warning parameters are present at the same time
ABB | SACE Emax 2
Default
Off
--
Off
100 kW
Off
. . . .
0,6 Hz/s
3 Fn
10 s
Ekip Touch - Additional functions
4 - Load Shedding