Back-Up Protection Functions - ABB RET650 Applications Manual

1MRK 504 169-UEN A
IEC 61850 or ANSI
function name
Differential protection
T2WPDIF 87T
T3WPDIF 87T
REFPDIF 87N
2.3
IEC 61850 or ANSI
function name
Current protection
PHPIOC 50
OC4PTOC
1)
51_67
EFPIOC 50N
EF4PTOC 51N
2)
67N
TRPTTR 49
CCRBRF 50BF
CCPDSC 52PD
Voltage protection
UV2PTUV 27
OV2PTOV 59
ROV2PTOV 59N
OEXPVPH 24
Frequency protection
SAPTUF 81
SAPTOF 81
SAPFRC 81
1) 67 requires voltage
2) 67N requires voltage
Transformer protection RET650 2.2 IEC
Application manual
Function description
Transformer differential protection, two winding
Transformer differential protection, three winding
Restricted earth fault protection, low impedance

Back-up protection functions

Function description
Instantaneous phase overcurrent protection
Directional phase overcurrent protection, four steps
Instantaneous residual overcurrent protection
Directional residual overcurrent protection, four steps
Thermal overload protection, two time constants
Breaker failure protection
Pole discordance protection
Two step undervoltage protection
Two step overvoltage protection
Two step residual overvoltage protection
Overexcitation protection
Underfrequency protection
Overfrequency protection
Rate-of-change of frequency protection
Transformer
RET650 (A01) RET650 (A05)
1
1
GUID-A8D0852F-807F-4442-8730-E44808E194F0 v13
Transformer
RET650 (A01) RET650 (A05)
2
2
2
2
1
2
2
1
1
1
1
1
1
1
Section 2
Application
1
2
3
3
3
3
1
3
3
1
1
1
1
1
1
1
25