ABB Relion REB500 Product Manual page 37

ABB
Distributed busbar protection REB500
Product version: 8.2
Station level functions (applicable for nominal frequencies of 50 and 60 Hz)
Table 26. Busbar protection 87B (PDIF)
Function/ Parameter
Min. fault current pick-up setting (I
Neutral current detection
Stabilizing factor (k)
Differential current alarm operate current
Differential current alarm time delay
Isolator alarm time delay
Typical tripping time
CT ratio per feeder
Reset time
*) For details about pickup accuracy see 1KHL020789-Aen-Verification-Pickup-Value
Table 27. Breaker failure protection 50BF (PBRF)
Function/ Parameter
Operate current
Timer t1
Timer t2
Remote trip pulse
Reset ratio
Table 28. End-fault protection 51/62EF (PTOC)
Function/ Parameter
Operate current
Time delay
Pick up time
Reset ratio
Reset time
Range/ Value
) 200 to 6000 A in steps of 100 A
kmin
100 to 6000 A in steps of 100 A
0.7 to 0.9 in steps of 0.05
5 to 50% x I
kmin
2 to 50 s in steps of 1 s
0.5 to 90 s
typically 15 ms at I
f = 50, 60 Hz, incl. tripping relays
N
50 to 10 000/1 A,
50 to 10 000/5 A,
adjustable via HMI
40 to 100 ms at I
for f = 50, 60 Hz
N
Range/ Value
0.1 to 2 x I
N
10 to 5000 ms in steps of 10 ms
0 to 5000 ms in steps of 10 ms
100 to 2000 ms in steps of 10 ms
80% of I at I
k
80% of I at I
N
Range/ Value
0.1 to 2 x I
N
100 to 10,000 ms in steps of 100 ms
50..100 ms
95%
70 to 140 ms at I
for f = 50, 60 Hz
N
1MRK 505 352-BEN
Accuracy
±5% of I
±5% of I
*)
±5% of I
±5% of I
-
in steps of 5% -
-
-
³ 5 x I
-
; for
Diff k,min
-
³ 1 I
-
Diff k,min
Accuracy
±5% of I
in steps of 0.1 x I
N
-
-
-
³ 5 x I ±5% of I
k N
£ 5 x I
k N
Accuracy
±5% of I
in steps of 0.1 I
N
±5% of I
-
±4% of I
-±1% of I
= 1.2 – 20 x I -
k N
Issued: 2016-03-01
Revision: -
at I < I
N kmin N
at I > I
kmin kmin N
at I < I
N kmin N
at I > I
kmin kmin N
N
N
at I < I
N Set N
³ I
at I
Set Set N
£ I
at I
N Set N
³ I
at I
Set Set N
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