Function description IEC 61850 identification Function description IEC 61850 identification
Negative sequence
overcurrent protection
LCNSPTOC Local acceleration logic ZCLCPSCH
Negative sequence
overvoltage protection
LCNSPTOV Scheme communication
logic for distance or
overcurrent protection
ZCPSCH
Three phase overcurrent LCP3PTOC Current reversal and
weak-end infeed logic for
distance protection
ZCRWPSCH
Three phase
undercurrent
LCP3PTUC Automatic switch onto
fault logic, voltage and
current based
ZCVPSOF
Thermal overload
protection, one time
constant
LCPTTR Under impedance
protection for generator
ZGVPDIS
Zero sequence
overcurrent protection
LCZSPTOC Fast distance protection ZMFCPDIS
Zero sequence
overvoltage protection
LCZSPTOV High speed distance
protection
ZMFPDIS
Line differential
coordination
LDLPSCH Distance measuring
zone, quadrilateral
characteristic for series
compensated lines
ZMCAPDIS
Additional security logic
for differential
protection
LDRGFC Distance measuring
zone, quadrilateral
characteristic for series
compensated lines
ZMCPDIS
Loss of excitation LEXPDIS Fullscheme distance
protection, mho
characteristic
ZMHPDIS
Thermal overload
protection, one time
constant
LFPTTR Fullscheme distance
protection, quadrilateral
for earth faults
ZMMAPDIS
Loss of voltage check LOVPTUV Fullscheme distance
protection, quadrilateral
for earth faults
ZMMPDIS
Line differential
protection 3 CT sets,
with inzone
transformers, 2-3 line
ends
LT3CPDIF Distance protection
zone, quadrilateral
characteristic
ZMQAPDIS
Line differential
protection 6 CT sets,
with inzone
transformers, 3-5 line
ends
LT6CPDIF Distance protection
zone, quadrilateral
characteristic
ZMQPDIS
Negativ sequence time
overcurrent protection
for machines
NS2PTOC Distance protection
zone, quadrilateral
characteristic, separate
settings
ZMRAPDIS
Four step directional
negative phase sequence
overcurrent protection
NS4PTOC Distance protection
zone, quadrilateral
characteristic, separate
settings
ZMRPDIS
Four step phase
overcurrent protection
OC4PTOC Power swing detection ZMRPSB
Overexcitation
protection
OEXPVPH Mho Impedance
supervision logic
ZSMGAPC
Table continues on next page
Section 18 1MRK 511 358-UEN A
Station communication
416
Application manual
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