Line Differential Protection L3Cpdif, L6Cpdif, Lt3Cpdif, Lt6Cpdif - ABB RED670 Product Manual

Line differential protection RED670 2.1 IEC
Product version: 2.1
Table 30. 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
171, 172 and table 172
Critical impulse time
Charging current compensation
LT3CPDIF and LT6CPDIF:
*Operate time, restrained function at
0 to 10 x I
d
*Reset time, restrained function at 10
to 0 x I
d
*Operate time, unrestrained function
at 0 to 10 x I
d
*Reset time, unrestrained function at
10 to 0 x I
d
L3CPDIF and L6CPDIF:
*Operate time, restrained function at
0 to 10 x I
d
*Reset time, restrained function at 10
to 0 x I
d
*Operate time, unrestrained function
at 0 to 10 x I
d
*Reset time, unrestrained function at
10 to 0 x I
d
*Note: Data valid for a single IED with two local current input groups
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
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. = 25 ms
Min. = 10 ms
Max. = 25 ms
Min. = 15 ms
Max. = 25 ms
Min. = 5 ms
Max. = 15 ms
Min. = 15 ms
Max. = 25 ms
Accuracy
±1.0% of I at I ≤ I
r r
±1.0% of I at I > I
r
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-
-
-
±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 171, 172 and table 173
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1MRK 505 346-BEN -
r
r
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