ABB Relion 670 series Product Manual page 47

ABB
Line distance protection REL670 ANSI
Pre-configured
Product version: 1.2
Current protection
Table 29. Instantaneous phase overcurrent protection PHPIOC (50)
Function
Operate current
Reset ratio
Operate time
Reset time
Critical impulse time
Operate time
Reset time
Critical impulse time
Dynamic overreach
Table 30. Four step phase overcurrent protection OC4PTOC (51/67)
Function
Operate current
Reset ratio
Min. operating current
Relay characteristic angle (RCA)
Maximum forward angle
Minimum forward angle
2nd harmonic blocking
Independent time delay
Minimum operate time
Inverse characteristics, see
table 83, table 84 and table 85
Operate time, pickup function
Reset time, pickup function
Critical impulse time
Impulse margin time
Range or value
(1-2500)% of lBase
> 95%
25 ms typically at 0 to 2 x I
set
25 ms typically at 2 to 0 x I
set
10 ms typically at 0 to 2 x I
set
10 ms typically at 0 to 10 x I
set
35 ms typically at 10 to 0 x I
set
2 ms typically at 0 to 10 x I
set
< 5% at t = 100 ms
Setting range
lBase
(1-2500)% of
> 95%
lBase
(1-100)% of
(-70.0– -50.0) degrees
(40.0–70.0) degrees
(75.0–90.0) degrees
(5–100)% of fundamental
(0.000-60.000) s
(0.000-60.000) s
19 curve types
25 ms typically at 0 to 2 x I
set
25 ms typically at 2 to 0 x I
set
10 ms typically at 0 to 2 x I
set
15 ms typically
1MRK 506 317-BUS A
Accuracy
± 1.0% of I at I £ I
n n
± 1.0% of I at I > I
n
-
-
-
-
-
-
-
-
Accuracy
± 1.0% of I at I ≤ I
n n
± 1.0% of I at I > I
n
-
± 1.0% of I at I ≤ I
n n
±1.0% of I at I > I
n
± 2.0 degrees
± 2.0 degrees
± 2.0 degrees
± 2.0% of I
n
± 0.5% ±10 ms
± 0.5% ±10 ms
See table 83, table 84 and table
85
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-
-
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