2.2
Back-up protection functions
IEC 61850/
Function block
name
ANSI
Function description
Line Distance
REL650
REL650
(A01
A)
3Ph/1CB
REL650
(A11
A)
1Ph/1CB
REL650
(B01
A)
3Ph/2CB
Current protection
PHPIOC
50
Instantaneous phase overcurrent protection, 3–
phase output
0–1
1
1
SPTPIOC
50
Instantaneous phase overcurrent protection, phase
segregated output
0–1
1
OC4PTOC
51
Four step phase overcurrent protection, 3–phase
output
0–1
1
1
OC4SPTOC
51/67
Four step phase overcurrent protection, phase
segregated output
0–1
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
UC2PTUC
37
Time delayed 2-step undercurrent 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
0–2
1
2
CSPRBRF
50BF
Breaker failure protection, phase segregated
activation and output
0–1
1
STBPTOC
50STB
Stub protection
0–1
1
1
1
CCRPLD
52PD
Pole discordance protection
0–2
1
1
2
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
Table continues on next page
Section 2
1MRK 506 331-UUS A
Available functions
16
Commissioning Manual
Содержание Relion 650 Series REL650
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