Functionality; Function Block; Signals - ABB REC650 ANSI Technical Manual

Section 6
Current protection
6.10.2
6.10.3
6.10.4
6.10.5
Table 87: BRCPTOC (46) Group settings (basic)
Name Values (Range)
Operation Disabled
Enabled
Pickup_ub 50 - 90
Pickup_PH 5 - 100
tOper 0.000 - 60.000
150

Functionality

Conventional protection functions can not 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 will give alarm or trip
at detecting broken conductors.

Function block

BRCPTOC (46)
I3P* TRIP
BLOCK PICKUP
ANSI09000277-1-en.vsd
ANSI09000277 V1 EN
Figure 62: BRCPTOC (46) function block

Signals

Table 85: BRCPTOC (46) Input signals
Name Type
I3P GROUP
SIGNAL
BLOCK BOOLEAN
Table 86: BRCPTOC (46) Output signals
Name Type
TRIP BOOLEAN
PICKUP BOOLEAN
Settings
Unit Step
- -
%IM 1
%IB 1
s 0.001
Default Description
- Three phase group signal for current inputs
0 Block of function
Description
Operate signal of the protection logic
Pickup signal of the protection logic
Default Description
Disabled Operation Disable / Enable
50 Unbalance current operation value in percent
of max current
20 Minimum phase current for operation of
pickup_ub> in % of Ibase
5.000 Operate time delay
1MRK 511 287-UUS A
Technical manual