Technical Data - ABB REL650 Technical Manual

Section 7
Current protection
7.2.8
178
BLOCK
Extract second
I
OP
harmonic current
component
Extract
fundamental
current component
IEC13000014 V2 EN-US
Figure 87: Second harmonic blocking

Technical data

Table 78: OC4PTOC technical data
Function
Operate current, step 1-4
Reset ratio
Minimum operate current, step 1-4
Relay characteristic angle (RCA)
Relay operating angle (ROA)
Second harmonic blocking
Independent time delay at 0 to 2 x I
1-4
Minimum operate time for inverse curves ,
step 1-4
Inverse time characteristics, see table 674,
table 675 and table 676
Operate time, start non-directional at 0 to 2 x
I
set
Reset time, start non-directional at 2 x I
Operate time, start non-directional at 0 to 10
x I
set
Reset time, start non-directional at 10 x I
0
Critical impulse time
Impulse margin time
a
a>b
0.07*IBase
b
a
a>b
b
a
a>b
b
X
2ndHarmStab
Setting range
(5-2500)% of lBase
> 95% at (50–2500)% of
lBase
(1-10000)% of
(40.0–65.0) degrees
(40.0–89.0) degrees
(5–100)% of fundamental
, step (0.000-60.000) s
set
(0.000-60.000) s
16 curve types
Min. = 15 ms
Max. = 30 ms
to 0 Min. = 15 ms
set
Max. = 30 ms
Min. = 5 ms
Max. = 20 ms
to Min. = 20 ms
set
Max. = 35 ms
10 ms typically at 0 to 2 x I
15 ms typically
Line distance protection REL650 2.2 IEC
1MRK 506 382-UEN A
AND
2ndH_BLOCK_Int
IEC13000014-2-en.vsd
M12342-1 v20
Accuracy
±1.0% of I at I ≤ I
r r
±1.0% of I at I > I
r
lBase
-
±1.0% of I at I ≤ I
r r
±1.0% of I at I > I
r
±2.0 degrees
±2.0 degrees
±2.0% of I
r
±0.2% or ±35 ms
whichever is
greater
±0.2% or ±35 ms
whichever is
greater
See table 674,
table 675 and
table 676
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Technical manual