QU I CK STA RT G U I DE
R EL I O N ® 6 3 0 SER I E S
3
—
Most common function blocks
Function
IEC 61850
IEC 60617
Protection
Three-phase non-directional overcurrent, low stage
PHLPTOC
3I>
Three-phase non-directional overcurrent, high stage
PHHPTOC
3I>>
Three-phase non-directional overcurrent, instantaneous stage
PHIPTOC
3I>>>
Three-phase directional overcurrent, low stage
DPHLPDOC
3I> →
Three-phase directional overcurrent, high stage
DPHHPDOC
3I>> →
Automatic switch-onto-fault logic
CVRSOF
CVRSOF
Autoreclosing
DARREC
O → I
Non-directional earth-fault, low stage
EFLPTOC
Io>
Non-directional earth-fault, high stage
EFHPTOC
Io>>
Non-directional earth-fault, instantaneous
EFIPTOC
Io>>>
Directional earth-fault, low stage
DEFLPDEF
Io> →
Directional earth-fault, high stage
DEFHPDEF
Io>> →
Transient/intermittent earth-fault
INTRPTEF
Io> → IEF
Admittance-based earth-fault protection
EFPADM
Yo> →
Wattmetric earth-fault protection
WPWDE
Po> →
Rotor earth-fault protection
MREFPTOC
Io>R
Motor stall protection
JAMPTOC
Ist>
Three-phase thermal overload protection for motors
MPTTR
3Ith>M
Loss of load protection
LOFLPTUC
3I<
Three-phase thermal overload protection for feeder
T1PTTR
3lth>
Phase discontinuity
PDNSPTOC
I2/I1>
Three-phase current inrush detection
INRPHAR
3I2f>
Three-phase overvoltage
PHPTOV
3U>
Three-phase undervoltage
PHPTUV
3U<
Positive-sequence overvoltage
PSPTOV
U1>
Positive-sequence undervoltage
PSPTUV
U1<
Negative-sequence overvoltage
NSPTOV
U2>
Residual overvoltage
ROVPTOV
Uo>
Frequency gradient
DAPFRC
df/dt>
Overfrequency
DAPTOF
f >
Underfrequency
DAPTUF
f <
Load shedding
LSHDPFRQ
f<, df/dt<
Circuit-breaker failure
CCBRBRF
3I>/Io>BF
Tripping logic
TRPPTRC
I → O
Multipurpose analog protection
MAPGAPC
MAP
Transformer differential protection for two-winding transformers
TR2PTDF
3dI>T
Optional functions
Tap changer control with voltage regulator
OLATCC
COLTC
Distance protection
DSTPDIS
Z<
Fault Location
SCEFRFLO
FLOC
Synchrocheck
SYNCRSYN
SYNC
The most common function blocks are listed below, please refer to the 620 series Technical Manual for
the full list. The available function blocks varies depending on the selected IED and configuration used.
