IEC 61850 or
function name
ANSI Function description Transformer
RET670
(Customized)
FMPSPDIS 21 Faulty phase identification with load enchroachment 0-2
ZMRPDIS,
ZMRAPDIS
21 Distance measuring zone, quad characteristic separate Ph-Ph and Ph-E settings 0-5
FRPSPDIS 21 Phase selection, quadrilateral characteristic with settable angle 0-2
ZMFPDIS 21 High speed distance protection, quad and mho characteristic 0-2
ZMFCPDIS 21 High speed distance protection for series comp. lines, quad and mho characteristic 0-2
PPLPHIZ Phase preference logic 0-1
PPL2PHIZ Phase preference logic 0-1
ZMBURPSB 68 Power swing detection, blocking and unblocking 0-1
PSLPSCH Power swing logic 0-1
PSPPPAM 78 Poleslip/out-of-step protection 0-1
OOSPPAM 78 Out-of-step protection 0-1
ZCVPSOF Automatic switch onto fault logic, voltage and current based 0-1
ZGVPDIS 21 Underimpedance protection for generators and transformers 0–2
3.2 Back-up protection functions
GUID-A8D0852F-807F-4442-8730-E44808E194F0 v17
IEC 61850 or
function name
ANSI Function description
RET670
(Customized)
Current protection
PHPIOC 50 Instantaneous phase overcurrent protection 0-8
OC4PTOC
51_67
1)
Directional phase overcurrent protection, four steps 0-8
EFPIOC 50N Instantaneous residual overcurrent protection 0-8
EF4PTOC
51N_67N Directional residual overcurrent protection, four steps 0-8
NS4PTOC 46I2 Directional negative phase sequence overcurrent protection, four steps 0-8
SDEPSDE 67N Sensitive directional residual overcurrent and power protection 0-3
LCPTTR 26 Thermal overload protection, one time constant, Celsius 0-2
LFPTTR 26 Thermal overload protection, one time constant, Fahrenheit 0-2
TRPTTR 49 Thermal overload protection, two time constants 0-6
CCRBRF 50BF Breaker failure protection 0-6
STBPTOC 50STB Stub protection 0-3
CCPDSC 52PD Pole discordance protection 0-6
Table continues on next page
Section 3 1MRK 504 165-UUS Rev
. J
Available functions
30 T
ransformer protection RET670
Commissioning manual
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