ABB REL670 - Page 80

Table 58. Stub protection STBPTOC
Function Range or value Accuracy
Operating current (5-2500)% of IBase
±1.0% of I
r
at I ≤ I
r
±1.0% of I at I > I
r
Reset ratio > 95% at (50-2500)% of IBase -
Independent time delay at 0 to 2 x I
set
(0.000-60.000) s
±0.2% or ±30 ms whichever is greater
Operate time, start at 0 to 2 x I
set
Min. = 10 ms
Max. = 20 ms
-
Reset time, start at 2 x I
set
to 0 Min. = 10 ms
Max. = 20 ms
-
Critical impulse time 10 ms typically at 0 to 2 x I
set
-
Impulse margin time 15 ms typically -
Table 59. Pole discordance protection CCPDSC
Function
Range or value Accuracy
Operate current (0–100)% of IBase ±1.0% of I
r
Independent time delay between
trip condition and trip signal
(0.000-60.000) s ±0.2% or ± 30 ms whichever is greater
Table 60. Directional underpower protection GUPPDUP
Function
Range or value Accuracy
Power level
for Step 1 and Step 2
(0.0–500.0)% of SBase ±1.0% of S
r
at S ≤ S
r
±1.0% of S at S > S
r
where
1.732
r r r
S U I= × ×
Characteristic angle
for Step 1 and Step 2
(-180.0–180.0) degrees ±2.0 degrees
Independent time delay to operate for Step 1
and Step 2 at 2 x S
r
to 0.5 x S
r
and k = 0.000
(0.01-6000.00) s ±0.2% or ±40 ms whichever is greater
Table 61. Directional overpower protection GOPPDOP
Function
Range or value Accuracy
Power level
for Step 1 and Step 2
(0.0–500.0)% of SBase ±1.0% of S
r
at S ≤ S
r
±1.0% of S at S > S
r
Characteristic angle
for Step 1 and Step 2
(-180.0–180.0) degrees ±2.0 degrees
Operate time, start at 0.5 x S
r
to 2 x S
r
and
k = 0.000
Min. =10 ms
Max. = 25 ms
Reset time, start at 2 x S
r
to 0.5 x S
r
and
k = 0.000
Min. = 35 ms
Max. = 55 ms
Independent time delay to operate for Step 1
and Step 2 at 0.5 x S
r
to 2 x S
r
and k = 0.000
(0.01-6000.00) s ±0.2% or ±40 ms whichever is greater
1MRK 506 372-BEN -
Line distance protection REL670 2.2
Product version: 2.2
80 ABB