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Most common function blocks
The most common function blocks are listed below, please refer to the 630 series Technical Reference manual for the full list.
The available function blocks varies depending on the selected IED and configuration used.
Function
Protection
Three-phase non-directional overcurrent, low stage
Three-phase non-directional overcurrent, high stage
Three-phase non-directional overcurrent, instantaneous stage
Three-phase directional overcurrent, low stage
Three-phase directional overcurrent, high stage
Automatic switch-onto-fault logic
Autoreclosing
Non-directional earth-fault, low stage
Non-directional earth-fault, high stage
Non-directional earth-fault, instantaneous
Directional earth-fault, low stage
Directional earth-fault, high stage
Transient/intermittent earth-fault
Admittance-based earth-fault protection
Wattmetric earth-fault protection
Rotor earth-fault protection
Motor stall protection
Three-phase thermal overload protection for motors
Loss of load protection
Three-phase thermal overload protection for feeder
Phase discontinuity
Three-phase current inrush detection
Three-phase overvoltage
Three-phase undervoltage
Positive-sequence overvoltage
Positive-sequence undervoltage
Negative-sequence overvoltage
Residual overvoltage
Frequency gradient
Overfrequency
Underfrequency
Load shedding
Circuit-breaker failure
Tripping logic
Multipurpose analog protection
Transformer differential protection for two-winding transformers
Optional functions
Tap changer control with voltage regulator
Distance protection
Fault Location
Synchrocheck
IEC 61850
PHLPTOC
PHHPTOC
PHIPTOC
DPHLPDOC
DPHHPDOC
CVRSOF
DARREC
EFLPTOC
EFHPTOC
EFIPTOC
DEFLPDEF
DEFHPDEF
INTRPTEF
EFPADM
WPWDE
MREFPTOC
JAMPTOC
MPTTR
LOFLPTUC
T1PTTR
PDNSPTOC
INRPHAR
PHPTOV
PHPTUV
PSPTOV
PSPTUV
NSPTOV
ROVPTOV
DAPFRC
DAPTOF
DAPTUF
LSHDPFRQ
CCBRBRF
TRPPTRC
MAPGAPC
TR2PTDF
OLATCC
DSTPDIS
SCEFRFLO
SYNCRSYN
IEC 60617
3I>
3I>>
3I>>>
→
3I>
→
3I>>
CVRSOF
→
O
I
Io>
Io>>
Io>>>
→
Io>
→
Io>>
→
Io>
IEF
→
Yo>
→
Po>
Io>R
Ist>
3Ith>M
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3lth>
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df/dt>
f >
f <
f<, df/dt<
3I>/Io>BF
→
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O
MAP
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COLTC
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FLOC
SYNC
Relion
630 series | Quick start guide 3
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