ABB Relion 670 series - Page 564

Function Range or value Accuracy
Reset time, pickup at 2 to 0.5 x S
r
and k = 0.000
Min. = 35 ms
Max. = 55 ms
Independent time delay to trip for
Step 1 and Step 2 at 0.5 to 2 x S
n
and
k = 0.000
(0.01-6000.00) s ±0.2% or ±40 ms whichever is
greater
*) To achieve this accuracy for reverse power protection it is also recommended to apply settings k = 0.990 and
Mode = PosSeq . These settings will help to minimize the overall measurement error ensuring the best accuracy for
this application.
8.13 Broken conductor check BRCPTOC (46)
SEMOD171761-1 v3
8.13.1 Identification
SEMOD172362-2 v2
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Broken conductor check BRCPTOC - 46
8.13.2 Functionality
SEMOD171805-5 v6
Conventional protection functions cannot detect the broken conductor condition. Broken
conductor check BRCPTOC (46) function, consisting of continuous phase selective current
unsymmetrical check on the line where the IED is connected, gives an alarm or trip at detecting
broken conductors.
8.13.3 Function block
SEMOD171906-11 v4
ANSI07000034-2-en.vsd
BRCPTOC (46)
I3P*
BLOCK
BLKTR
TRIP
PICKUP
ANSI07000034 V2 EN-US
Figure 296: BRCPTOC (46) function block
8.13.4 Signals
PID-3479-INPUTSIGNALS v4
Table 292: BRCPTOC (46) Input signals
Name
Type Default Description
I3P GROUP
SIGNAL
- Group signal for current input
BLOCK BOOLEAN 0 Block of function
BLKTR BOOLEAN 0 Block of trip
Section 8 1MRK 502 066-UUS B
Current protection
558
Technical manual