ABB Relion 670 Series Product Manual page 55

Line differential protection RED670 2.0
Product version: 2.0
Table 25. Line differential protection L3CPDIF, L6CPDIF, LT3CPDIF, LT6CPDIF
Function
Minimum operate current
SlopeSection2
SlopeSection3
EndSection 1
EndSection 2
Unrestrained limit function
Second harmonic blocking
Fifth harmonic blocking
*Inverse characteristics, see table
131, 132 and table 133
Critical impulse time
Charging current compensation
LT3CPDIF (With in-zone transformer enabled and tIdMinHigh set to 0) :
*Operate time, restrained function at
0 to 10 x I Min
d
*Reset time, restrained function at 10
to 0 x I Min
d
*Operate time, unrestrained function
at 0 to 10 x I Unre
d
*Reset time, unrestrained function at
10 to 0 x I Unre
d
**Operate time, unrestrained
negative sequence function
**Reset time, unrestrained negative
sequence function
L3CPDIF and L6CPDIF (With tIdMinHigh set to 0):
*Operate time, restrained function at
0 to 10 x I Min
d
*Reset time, restrained function at 10
to 0 x I Min
d
*Operate time, unrestrained function
at 0 to 10 x I Unre
d
*Reset time, unrestrained function at
10 to 0 x I Unre
d
ABB
Range or value
(20-200)% of IBase
(10.0-50.0)%
(30.0-100.0)%
(20–150)% of IBase
IBase
(100–1000)% of
(100–5000)% of IBase
(5.0–100.0)% of fundamental
(5.0–100.0)% of fundamental
16 curve types
2ms typically at 0 to 10 x I Min
d
On/Off
Min. = 25 ms
Max. = 35 ms
Min. = 5 ms
Max. = 15 ms
Min. = 5 ms
Max. = 15 ms
Min. = 15 ms
Max. = 30 ms
Min. = 10 ms
Max. = 25 ms
Min. = 10 ms
Max. = 30 ms
Min. = 10 ms
Max. = 20 ms
Min. = 15 ms
Max. = 25 ms
Min. = 5 ms
Max. = 15 ms
Min. = 15 ms
Max. = 30 ms
Accuracy
±1.0% of I at I ≤ I
r r
±1.0% of I at I > I
r
-
-
-
-
±1.0% of I at I ≤ I
r r
±1.0% of I at I > I
r
±1.0% of I
r
Note: fundamental magnitude = 100% of I
±2.0% of I
r
Note: fundamental magnitude = 100% of I
See table 131, 132 and table 133
-
-
-
-
-
-
-
-
-
-
-
-
1MRK505310-BEN C
r
r
55