© 2023 by XOLTA
22
Country specific settings:
The following sections describes procedures for installation
and setting of the NA Schutz for different country grid codes.
Denmark
Denmark has two electrical regions.
DK1 is used as a designation for West Denmark, which is part
of the synchronous area Continental Europe.
DK2 is used as a designation for Eastern Denmark, which is
part of the Nordic synchronous area.
Moreover, installations up to 125kW are considered to be type A.
Installations from 125kW and up to 1MW are considered to be
type B1.
Installations from 1MW and up to 3MW are considered to be
type B2.
DK1:
Set automatic reconnection to occur only within the frequency
range of 49.8 – 50.2 Hz, and after the mains frequency has
been within this range for at least 180 s.
DK2:
Set automatic reconnection to occur only within the frequency
range of 49.5 – 50.5 Hz, and after the mains frequency has been
within this range for at least 180 s.
RELAY PROTECTION SETTINGS
SET VALUE
TIME
LEVEL
Overvoltage (step 1)
60s
253 V
Overvoltage (step 2)
0.2s
264.5 V
Undervoltage (step 1)
50 s
195.5 V
Undervoltage (step 2)
0.2s
184.0 V
Overfrequency
0.5s
51.5 Hz
Underfrequency
0.5s
47.5 Hz
RELAY PROTECTION SETTINGS
SET VALUE
TIME
LEVEL
Overvoltage (step 1)
60s
253 V
Overvoltage (step 2)
0.2s
264.5 V
Undervoltage (step 1)
60 s
207 V (for MV grid)
195.5 V (for LV grid)
Overfrequency
0.5s
51.5 Hz
Underfrequency
0.5s
47.5 Hz
ROCOF
0.08s
2.5Hz/s
For type A, install the grid feeding monitoring relay and set up
the protection settings as described in the table below.
For type B, install the grid feeding monitoring relay and set up
the protection settings as described in the table below.
Refer to document “ TEKNISK FORSKRIFT 3.3.1 FOR ELEK-
TRISKE ENERGILAGERANLÆG 2023” if more information
is required.
For detailed information about ABB and Ziehl settings refer to
device manuals.
