Section 3 Available Functions; Main Protection Functions; Back-Up Protection Functions - ABB RET650 2.1 IEC Commissioning Manual

1MRK 504 160-UEN -
Section 3
3.1
IEC 61850 ANSI
Differential protection
T3WPDIF 87T
REFPDIF 87N
3.2
IEC 61850 ANSI
Current protection
PHPIOC 50
OC4PTOC
1)
51_67
EFPIOC 50N
EF4PTOC 51N
2)
67N
TRPTTR 49
CCRBRF 50BF
Multipurpose protection
CVGAPC
1) 67 requires voltage
2) 67N requires voltage
Transformer protection RET650 2.1 IEC
Commissioning manual
Available functions

Main protection functions

Table 2: Example of quantities
2 = number of basic instances
0-3 = option quantities
3-A03 = optional function included in packages A03 (refer to ordering details)
Function description
Transformer differential protection, three winding
Restricted earth fault protection, low impedance

Back-up protection functions

Function description
Instantaneous phase overcurrent protection
Four step phase overcurrent protection
Instantaneous residual overcurrent protection
Four step residual overcurrent protection
Thermal overload protection, two time constant
Breaker failure protection
General current and voltage protection
Available functions
Transformer
RET650 (A05)
1
2
Transformer
RET650 (A05)
1
3
1
2
1
3
3
Section 3
19