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2.2
Back-up protection functions
IEC 61850 or
Function name
ANSI
Function description
Bay
REC650
REC650 (A01
A)
3Ph/1CBA
REC650 (A02
A)
3Ph/1CBAB
REC650 (A07
A)
BCAB
Current protection
PHPIOC
50
Instantaneous phase overcurrent protection, 3–phase
output
0–1
1
1
1
OC4PTOC
51/67
Four step phase overcurrent protection, 3-phase
output
0–1
1
1
1
EFPIOC
50N
Instantaneous residual overcurrent protection
0–1
1
1
1
EF4PTOC
51N/67N
Four step residual overcurrent protection, zero/
negative sequence direction
0–1
1
1
1
SDEPSDE
67N
Sensitive directional residual overcurrent and power
protection
0–1
1
1
1
LCPTTR
26
Thermal overload protection, one time constant,
Celsius
0–1
1
1
1
LFPTTR
26
Thermal overload protection, one time constant,
Fahrenheit
0–1
1
1
1
CCRBRF
50BF
Breaker failure protection, 3–phase activation and
output
0–1
1
1
1
STBPTOC
50STB
Stub protection
0–1
1
1
1
CCRPLD
52PD
Pole discordance protection
0–1
1
1
1
BRCPTOC
46
Broken conductor check
0–1
1
1
1
GUPPDUP
37
Directional underpower protection
0–1
1
1
1
GOPPDOP
32
Directional overpower protection
0–1
1
1
1
DNSPTOC
46
Negative sequence based overcurrent function
0–1
1
1
1
Voltage protection
UV2PTUV
27
Two step undervoltage protection
0–1
1
1
1
OV2PTOV
59
Two step overvoltage protection
0–1
1
1
1
ROV2PTOV
59N
Two step residual overvoltage protection
0–1
1
1
1
LOVPTUV
27
Loss of voltage check
0–1
1
1
1
Frequency protection
SAPTUF
81
Underfrequency function
0–2
2
2
2
SAPTOF
81
Overfrequency function
0–2
2
2
2
SAPFRC
81
Rate-of-change frequency protection
0–2
2
2
2
1MRK 511 287-UUS A
Section 2
Available functions
41
Technical manual
Содержание REC650 ANSI
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