Technical Revision History; Admittance-Based Ground-Fault Protection 21Yn; Identification; Function Block - ABB 615 series Technical Manual

Section 4
Protection functions
4.2.3.10
4.2.4
4.2.4.1
4.2.4.2
370

Technical revision history

Table 377: 67NIEF Technical revision history
Technical revision
B
C
D
E

Admittance-based ground-fault protection 21YN

Identification

Function description
Admittance-based ground-fault
protection

Function block

21YN
IG TRIP
VG PICKUP
BLOCK
RELEASE
GUID-1F42E8A5-E97D-4C47-BF81-87E82687CC36 V1 EN
Figure 174: Function block
Change
Minimum and default values changed to 40 ms for
Trip delay time setting
the
Minimum trip current setting is added.
The
Correction in IEC 61850 mapping: DO BlkEF
renamed to InhEF. Minimum value changed from
0.01 to 0.10 (default changed from 0.01 to 0.20) for
the Voltage pickup value setting. Minimum value
changed from 0 ms to 40 ms for the
setting.
Voltage pickup value description changed from
"Voltage pickup value for transient EF" to "Voltage
pickup value" since the pickup value is effective in
both operation modes. Added support for calculated
V0. Vg or V0 source (measured/calculated) can be
selected with "Vg or V0".
setting minimum changed from 0.10 to 0.05.
Min trip current setting scaling corrected to RMS
level from peak level.
IEC 61850 IEC 60617
identification identification
EFPADM Yo> ->
1MAC059074-MB A
Reset delay time
Voltage pickup value
ANSI/IEEE C37.2
device number
21YN
615 series ANSI
Technical Manual