Technical Data - ABB RET650 Technical Manual

1MRK 504 135-UEN A
8.4.9
Technical manual
BLOCK
Extract second
I
OP
harmonic current
component
Extract
fundamental
current component
|I |
OP
UseStartValue
IN1>
IN2>
IN3>
IN4>
IEC13000015 V1 EN
Figure 75: Second harmonic blocking

Technical data

Table 90: EF4PTOC technical data
Function
Operate current
Reset ratio
Operate current for directional
comparison, Zero sequence
Operate current for directional
comparison, Negative sequence
Min. operating current
Minimum operate time for inverse
characteristics
Timers
Inverse characteristics, see table
559, table 560 and table 561
Table continues on next page
a
a>b
0.07*IBase
b
a
a>b
b
a
a>b
b
X
2ndHarmStab
t=70ms
OR
t
BlkParTransf=On
a
a>b
b
Range or value
lBase
(1-2500)% of
> 95%
(1–100)% of lBase
(1–100)% of lBase
(1-10000)% of lBase
(0.000-60.000) s
(0.000-60.000) s
15 curve types
Section 8
Current protection
AND
-1
q
AN
OR 2ndH_BLOCK_Int
D
IEC13000015-1-en.vsd
Accuracy
± 1.0% of I at I < I
r r
± 1.0% of I at I > I
r
-
± 2.0% of I
r
± 2.0% of I
r
± 1.0% of I at I < I
r r
± 1.0% of I at I >I
r
± 0.5% ± 25 ms
± 0.5% ±25 ms
1)
ANSI/IEEE C37.112
IEC 60255–151
±3% or ±40 ms
0.10 ≤ k ≤ 3.00
1.5 x I ≤ I ≤ 20 x I
set set
171