Functions, codes and symbols - Arc protection - Bay control and measurement - Motor protection - Transformer protection - 2 winding - Busbar differential protection (low impedance) - Feeder protection - Voltage regulation - Busbar protection (voltage and frequency) - Capacitor bank protection - Interconnection protection - Power management/Load shedding - Back-up protection - Engineering Manual - SSC600 Smart substation control and protection - 1.5 - IEC - ANSI

All available functions included in the IED are listed in the tables below. Available functions depend on the chosen product options.

Table 1. Protection functions
Function	IEC 61850	IEC 60617	ANSI	Logical device	Logical nodes
Three-phase non-directional overcurrent protection, low stage	PHLPTOC	3I>	51P-1	LD0	PHLPTOC
Three-phase non-directional overcurrent protection, high stage	PHHPTOC	3I>>	51P-2	LD0	PHHPTOC
Three-phase non-directional overcurrent protection, instantaneous stage	PHIPTOC	3I>>>	50P	LD0	PHIPTOC
Three-phase directional overcurrent protection, low stage	DPHLPDOC	3I> ->	67P/51P-1	LD0	DPHLPTOC DPHLRDIR
Three-phase directional overcurrent protection, high stage	DPHHPDOC	3I>> ->	67P/51P-2	LD0	DPHHPTOC DPHHRDIR
Non-directional earth-fault protection, low stage	EFLPTOC	Io>	51G/51N-1	LD0	EFLPTOC
Non-directional earth-fault protection, high stage	EFHPTOC	Io>>	51G/51N-2	LD0	EFHPTOC
Non-directional earth-fault protection, instantaneous stage	EFIPTOC	Io>>>	50G/50N	LD0	EFIPTOC
Directional earth-fault protection, low stage	DEFLPDEF	Io> ->	67G/N-1 51G/N-1	LD0	DEFLPTOC DEFLRDIR
Directional earth-fault protection, high stage	DEFHPDEF	lo>> ->	67G/N-1 51G/N-2	LD0	DEFHPTOC DEFHRDIR
Admittance-based earth-fault protection	EFPADM	Yo> ->	21YN	LD0	EFPADM
Wattmetric-based earth-fault protection	WPWDE	Po> ->	32N	LD0	WRDIR WPSDE WMMXU
Transient/intermittent earth-fault protection	INTRPTEF	lo> -> IEF	67NTEF/NIEF	LD0	INTRPTEF
Negative-sequence overcurrent protection	NSPTOC	I2>	46M	LD0	NSPTOC
Phase discontinuity protection	PDNSPTOC	I2/I1>	46PD	LD0	PDNSPTOC
Residual overvoltage protection	ROVPTOV	Uo>	59G/59N	LD0	ROVPTOV
Three-phase undervoltage protection	PHPTUV	3U<	27	LD0	PHPTUV
Three-phase overvoltage protection	PHPTOV	3U>	59	LD0	PHPTOV
Positive-sequence undervoltage protection	PSPTUV	U1<	27PS	LD0	PSPTUV
Negative-sequence overvoltage protection	NSPTOV	U2>	59NS	LD0	NSPTOV
Frequency protection	FRPFRQ	f>/f<,df/dt	81	LD0	FRPTRC FRPTOF FRPTUF FRPFRC
Distance protection	DSTPDIS	Z<	21P, 21N	LD0	GFCPDIS GFCRDIR DST1PDIS DST2PDIS DST3PDIS DST4PDIS DST5PDIS DSTRDIR GFC1RFRC GFC2RFRC GFC3RFRC
Three-phase thermal protection for feeders, cables and distribution transformers	T1PTTR	3Ith>F	49F	LD0	T1PTTR
Three-phase thermal overload protection, two time constants	T2PTTR	3Ith>T/G/C	49T/G/C	LD0	T2PTTR
Negative-sequence overcurrent protection for ma- chines	MNSPTOC	I2>M	46M	LD0	MNSPTOC
Loss of load supervision	LOFLPTUC	3I<	37	LD0	LOFLPTUC
Motor load jam protection	JAMPTOC	Ist>	50TDJAM	LD0	JAMPTOC
Motor start-up supervision	STTPMSU	Is2t n<	49,66,48,50TDLR	LD0	STTPMSS STTPMRI
Phase reversal protection	PREVPTOC	I2>>	46R	LD0	PREVPTOC
Thermal overload protection for motors	MPTTR	3Ith>M	49M	LD0	MPTTR
Stabilized and instantaneous differential protection for two-winding transformers	TR2PTDF	3dI>T	87T	LD0	TR2PTRC TR2LPDIF TR2H2PHAR TR2H5PHAR TR2HPDIF
Numerically stabilized low-impedance restricted earth-fault protection	LREFPNDF	dIoLo>	87NLI	LD0	LREFPDIF LREFPHAR
Circuit breaker failure protection	CCBRBRF	3I>/Io>BF	50BF	LD0	CCBRBRF
Three-phase inrush detector	INRPHAR	3I2f>	68HB	LD0	INRPHAR
Switch onto fault	CBPSOF	SOTF	SOTF	LD0	CBPSOF
Master trip	TRPPTRC	Master Trip	94/86	LD0	TRPPTRC
Arc protection	ARCSARC	ARC	AFD	LD0	ARCSARC ARC1PIOC ARC2PIOC ARCPTRC
Multipurpose protection	MAPGAPC	MAP	MAP	LD0	MAPGAPC
Load-shedding and restoration	LSHDPFRQ	UFLS/R	81LSH	LD0	LSHDPTRC LSHDPTOF LSHDPTUF LSHDPFRC
Fault locator	SCEFRFLO	FLOC	FLOC	LD0	SCEFRFLO SCEFZLIN SCEF2ZLIN SCEF3ZLIN FLORFRC
Reverse power/directional overpower protection	DOPPDPR	P>/Q>	32R/32O	LD0	DPPDOP DOPMMXU
Three-phase underimpedance protection	UZPDIS	Z>G	21G	LD0	UZPDIS UZMMXU
Multifrequency admittance-based earth-fault protection	MFADPSDE	Io> ->Y	67NYH	LD0	MFADPSDE MFADRDIR
Busbar differential protection	BBPBDF	3Id/I	87BL	LD0	BBPTRC ZNAPDIF ZNBPDIF ZNCZPDIF SFAPDIF SFBPDIF BBCCSPVC
Busbar zone selection	ZNRSRC	ZNRSRC	ZNRSRC	LD0	ZNRSRC
Load blinder	LBRDOB	LB	21LB	LD0	LBRDOB LBMMXU
Three-phase overload protection for shunt capacitor banks	COLPTOC	3I> 3I<	51,37,86C	LD0	COL1PTOC COLPTUC COL2PTOC
Current unbalance protection for shunt capacitor banks	CUBPTOC	dI>C	60N	LD0	CUB1PTOC CUB2PTOC
Three-phase current unbalance protection for shunt capacitor banks	HCUBPTOC	3dI>C	60P	LD0	HCUB1PTOC HCUB2PTOC
Shunt capacitor bank switching resonance protection,current based	SRCPTOC	TD>	55ITHD	LD0	SRC1PTOC SRC2PTOC
Anomaly detector	ANOGAPC	ANOGAPC	ANOGAPC	LD0	ANOGAPC

Table 2. Interconnection functions
Function	IEC 61850	IEC 60617	ANSI	Logical device	Logical nodes
Directional reactive power undervoltage protection	DQPTUV	Q> ->,3U<	32Q,27	LD0	DQPTUV DQPDOP DQMMXU
Low-voltage ride-through protection	LVRTPTUV	U<RT	27RT	LD0	LVRTPTUV

Table 3. Power quality functions
Function	IEC 61850	IEC 60617	ANSI	Logical device	Logical nodes
Current total demand distortion	CMHAI	PQM3I	PQM3I	CMHAI	CMHAI
Voltage total harmonic distortion	VMHAI	PQM3U	PQM3V	VMHAI	VMHAIVMHAI
Voltage variation	PHQVVR	PQMU	PQMV	PHQVVR PH2QVVR PH3QVVR QVVRQRC QVV2RQRC QVV3RQRC	PHQVVR PH2QVVR PH3QVVR QVVMSTA QVV2MSTA QVV3MSTA
Voltage unbalance	VSQVUB	PQUUB	PQVUB	-	-

Table 4. Control functions
Function	IEC 61850	IEC 60617	ANSI	Logical device	Logical nodes
Circuit-breaker control	CBXCBR	I <-> O CB	I <-> O CB	CTRL	CBCSWI CBCILO CBXCBR
Disconnector control	DCXSWI	I <-> O DCC	I <-> O DCC	CTRL	DCCSWI DCCILO DCXSWI
Earthing switch control	ESXSWI	I <-> O ESC	I <-> O ESC	CTRL	ESCSWI ESCILO ESXSWI
Disconnector position indication	DCSXSWI	I <-> O DC	I <-> O DC	CTRL	DCSXSWI
Earthing switch indication	ESSXSWI	I <-> O ES	I <-> O ES	CTRL	ESSXSWI
Emergency start-up	ESMGAPC	ESTART	ESTART	LD0	ESMGAPC
Autoreclosing	DARREC	O -> I	79	LD0	DARREC
Tap changer position indication	TPOSYLTC	TPOSM	84M	LD0	TPOSYLTC
Tap changer control with voltage regulator	OLATCC	COLTC	90V	LD0	OLATCC
Synchronism and energizing check	SECRSYN	SYNC	25	LD0	SECRSYN

Table 5. Condition monitoring and supervision functions
Function	IEC 61850	IEC 60617	ANSI	Logical device	Logical nodes
Circuit-breaker condition monitoring	SSCBR	CBCM	CBCM	LD0	SSCBR1 SPH1SCBR SPH2SCBR SPH3SCBR SSOPM SSIMG
Runtime counter for machines and devices	MDSOPT	OPTS	OPTM	LD0	MDSOPT
Fuse failure supervision	SEQSPVC	FUSEF	VCM, 60	LD0	SEQSPVC

Table 6. Measurement functions
Function	IEC 61850	IEC 60617	ANSI	Logical device	Logical nodes
Disturbance recorder	RDRE	DR	DFR	LD0	DR_LLN0 DR_LPHD RDRE RBDR
Fault record	FLTRFRC	FAULTREC	FAULTREC	LD0	FLTRFRC
Three-phase current measurement	CMMXU	3I	3I	LD0	CMMXU CAVMMXU CMAMMXU CMIMMXU
Sequence current measurement	CSMSQI	I1, I2, I0	I1, I2, I0	LD0	CSMSQI
Residual current measurement	RESCMMXU	Io	In	LD0	RESCMMXU RCAVMMXU RCMAMMXU RCMIMMXU
Three-phase voltage measurement	VMMXU	3U	3V	LD0	VMMXU VAVMMXU
Residual voltage measurement	RESVMMXU	Uo	Vn	LD0	RESVMMXU RVAVMMXU RVMAMMXU RVMIMMXU
Sequence voltage measurement	VSMSQI	U1, U2, U0	V1, V2, V0	LD0	VSMSQI
Three-phase power and energy measurement	PEMMXU	P, E	P, E	LD0	PEMMXU PEMMTR PEAVMMXU PEMAMMXU PEMIMMXU
Frequency measurement	FMMXU	f	f	LD0	FMMXU
IEC 61850-9-2 LE sampled value receiving	SVRECEIVE_LE	SVRECEIVE_LE	SVRECEIVE_LE	SMVRECEIVEMU01 – SMVRECEIVEMU30	I10ATCTR37 I10BTCTR38 I10CTCTR39 I10NTCTR40 U10ATVTR37 U10BTVTR38 U10BTVTR39 U10NTVTR40
IEC 61869-9 sampled value receiving	SVRECEIVE_61869	SVRECEIVE_61869	SVRECEIVE_61869	SV61869RECEIVEMU01 – SV61869RECEIVEMU30	I01ATCTR1– I10ATCTR37 I01BTCTR2– I10BTCTR38 I01CTCTR3– I10CTCTR39 I01NTCTR4– I10NTCTR40 U01ATVTR1- U10ATVTR37 U01BTVTR2- U10BTVTR38 U01CTVTR3- U10CTVTR39 U01NTVTR4- U10NTVTR40

Table 7. Other functions
Function	IEC 61850	IEC 60617	ANSI	Logical nodes
Minimum pulse timer	TPGAPC	TP	TP	TPGAPC
Minimum pulse timer (second resolution)	TPSGAPC	TPS	TPS	TPSGAPC
Minimum pulse timer minute resolution)	TPMGAPC	TPM	TPM	TPMGAPC
Pulse timer	PTGAPC	PT	PT	PTGAPC
Time delay off	TOFGAPC	TOF	TOF	TOFGAPC
Time delay on	TONGAPC	TON	TON	TONGAPC
Set-reset	SRGAPC	SR	SR	SRGAPC
Move	MVGAPC	MV	MV	MVGAPC
Generic control point	SPCGAPC	SPC	SPC	SPCGAPC
Analog value scaling	SCA4GAPC	SCA4	SCA4	SCA4GAPC
Integer value move	MVI4GAPC	MVI4	MVI4	MVI4GAPC
Voltage switch	VMSWI	VSWI	VSWI	VMSWI
Current switch	CMSWI	CMSWI	CMSWI	CMSWI
Current sum	CMSUM	CSUM	CSUM	SIL1TCTR SIL2TCTR SIL3TCTR SRESTCTR