Instantaneous Residual Overcurrent Protection Efpioc; Identification; Functionality; Function Block - ABB RED650 Technical Manual

1MRK 505 394-UEN A
8.3
8.3.1
8.3.2
8.3.3
8.3.4
Line differential protection RED650 2.2 IEC
Technical manual
Instantaneous residual overcurrent protection
EFPIOC

Identification

Function description
Instantaneous residual overcurrent
protection

Functionality

The Instantaneous residual overcurrent protection (EFPIOC) has a low transient
overreach and short tripping times to allow the use for instantaneous earth-fault
protection, with the reach limited to less than the typical eighty percent of the line
at minimum source impedance. EFPIOC is configured to measure the residual
current from the three-phase current inputs and can be configured to measure the
current from a separate current input.

Function block

EFPIOC
I3P* TRIP
BLOCK
BLKAR
ENMULT
IEC06000269-3-en.vsdx
IEC06000269 V3 EN-US
Figure 81: EFPIOC function block

Signals

Table 76: EFPIOC Input signals
Name Type
I3P GROUP
SIGNAL
BLOCK BOOLEAN
BLKAR BOOLEAN
ENMULT BOOLEAN
IEC 61850 IEC 60617
identification identification
EFPIOC
IN>>
IEF V1 EN-US
Default Description
- Three phase currents
0 Block of function
0 Block input for auto reclose
0 Enable current multiplier
Section 8
Current protection
IP14508-1 v3
M14887-1 v4
ANSI/IEEE C37.2
device number
50N
M12701-3 v16
M12614-3 v6
IP11448-1 v2
PID-6915-INPUTSIGNALS v4
179