Section 8
Current protection
8.1
Instantaneous phase overcurrent protection PHPIOC (50)
IP14506-1 v6
8.1.1
Identification
M14880-1 v4
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Instantaneous phase overcurrent
protection 3-phase output
PHPIOC
3I>>
SYMBOL-Z V1 EN-US
50
8.1.2
Functionality
M12910-3 v12
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.
8.1.3
Function block
M12602-3 v6
ANSI04000391-2-en.vsd
PHPIOC (50)
I3P*
BLOCK
MULTPU
TRIP
TR_A
TR_B
TR_C
ANSI04000391 V2 EN-US
Figure 245: PHPIOC (50) function block
8.1.4
Signals
IP11433-1 v2
PID-6519-INPUTSIGNALS v5
Table 204: PHPIOC (50) Input signals
Name
Type
Default
Description
I3P
GROUP
SIGNAL
-
Three phase current
BLOCK
BOOLEAN
0
Block of function
MULTPU
BOOLEAN
0
Enable current pickup value multiplier
1MRK 502 066-UUS B
Section 8
Current protection
447
Technical manual
Summary of Contents for Relion 670 series
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