Technical Data - ABB Relion Technical Manual

1MRK 502 048-UUS A
8.1.9
8.2
8.2.1
Technical manual

Technical data

Table 89: OC4PTOC (51/67) technical data
Function
Operate current
Reset ratio
Min. operating current
2nd harmonic blocking
Independent time delay
Minimum operate time for
inverse characteristics
Inverse characteristics, see
table 574, table 575 and table
576
Operate time, nondirectional
pickup function
Reset time, pickup function
Operate time, directional pickup
function
Reset time, directional pickup
function
Critical impulse time
Impulse margin time
1)
Note: Timing accuracy only valid when 2nd harmonic blocking is turned off
Four step residual overcurrent protection, zero,
negative sequence direction EF4PTOC (51N/67N)
Identification
Function description
Four step residual overcurrent
protection, zero or negative sequence
direction
Setting range
lBase
(5-2500)% of
lBase
> 95% at (50–2500)% of
lBase
(5-10000)% of
(5–100)% of fundamental
(0.000-60.000) s
(0.000-60.000) s
15 curve types
25 ms typically at 0 to 2 x I
set
35 ms typically at 2 to 0 x I
set
50 ms typically at 0 to 2 x I
set
35 ms typically at 2 to 0 x I
set
10 ms typically at 0 to 2 x I
set
15 ms typically
IEC 61850 IEC 60617
identification identification
EF4PTOC
2
IEC11000263 V1 EN
Section 8
Current protection
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% of I
n
± 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
-
-
-
-
-
-
ANSI/IEEE C37.2
device number
51N/67N
203