Section 7
Current protection
7.1
Instantaneous phase overcurrent protection
PHPIOC
IP14506-1 v6
7.1.1
Identification
M14880-1 v5
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Instantaneous phase overcurrent
protection
PHPIOC
3I>>
SYMBOL-Z V1 EN-US
50
7.1.2
Functionality
M12910-3 v13
The instantaneous three phase overcurrent function has a low transient overreach
and short tripping time to allow use as a high set short-circuit protection function.
7.1.3
Function block
M12602-3 v6
IEC04000391-2-en.vsd
PHPIOC
I3P*
BLOCK
ENMULT
TRIP
TRL1
TRL2
TRL3
IEC04000391 V2 EN-US
Figure 79:
PHPIOC function block
7.1.4
Signals
IP11433-1 v2
PID-6914-INPUTSIGNALS v3
Table 64:
PHPIOC Input signals
Name
Type
Default
Description
I3P
GROUP
SIGNAL
-
Three phase current
BLOCK
BOOLEAN
0
Block of function
ENMULT
BOOLEAN
0
Enable current start value multiplier
1MRK 506 382-UEN A
Section 7
Current protection
Line distance protection REL650 2.2 IEC
159
Technical manual
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