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Section 2
Available functions
Note that not all functions included in the tables below have
commissioning information available.
2.1
Back-up protection functions
IEC 61850/
Function block
name
ANSI
Function description
Bay
REC650
(A01)
1CBA
REC650
(A02)
1CBAB
REC650
(A07)
BCAB
Current protection
PHPIOC
50
Instantaneous phase overcurrent protection
1
1
1
OC4PTOC
51/67
Four step directional phase overcurrent protection
1
1
1
EFPIOC
50N
Instantaneous residual overcurrent protection
1
1
1
EF4PTOC
51N/67N
Four step directional residual overcurrent protection
1
1
SDEPSDE
67N
Sensitive directional residual overcurrent and power protection
1
1
1
LPTTR
26
Thermal overload protection, one time constant
1
1
1
CCRBRF
50BF
Breaker failure protection
1
1
1
STBPTOC
50STB
Stub protection
1
1
1
CCRPLD
52PD
Pole discordance protection
1
1
1
BRCPTOC
46
Broken conductor check
1
1
1
GUPPDUP
37
Directional underpower protection
1
1
1
GOPPDOP
32
Directional overpower protection
1
1
1
DNSPTOC
46
Negative sequence based overcurrent function
1
1
1
Voltage protection
UV2PTUV
27
Two step undervoltage protection
1
1
1
OV2PTOV
59
Two step overvoltage protection
1
1
1
ROV2PTOV
59N
Two step residual overvoltage protection
1
1
1
LOVPTUV
27
Loss of voltage check
1
1
1
Frequency protection
SAPTUF
81
Underfrequency function
2
2
2
SAPTOF
81
Overfrequency function
2
2
2
SAPFRC
81
Rate-of-change frequency protection
2
2
2
1MRK 511 248-UEN -
Section 2
Available functions
13
Commissioning Manual