Table 2. Supported functions
Functionality
A
B
C
D
E
F
G
H
Protection
1)
Stabilized and instantaneous differential
protection for two-winding transformers
●
●
●
●
●
●
●
●
Multi-purpose protection, instance 1
2)
o
3)
o
3)
o
3)
o
3)
-
-
-
-
Multi-purpose protection, instance 2
2)
o
3)
o
3)
o
3)
o
3)
-
-
-
-
Multi-purpose protection, instance 3
2)
o
3)
o
3)
o
3)
o
3)
-
-
-
-
Multi-purpose protection, instance 4
2)
o
3)
o
3)
o
3)
o
3)
-
-
-
-
Multi-purpose protection, instance 5
2)
o
3)
o
3)
o
3)
o
3)
-
-
-
-
Multi-purpose protection, instance 6
2)
o
3)
o
3)
o
3)
o
3)
-
-
-
-
Master trip, instance 1
●
●
●
●
●
●
●
●
Master trip, instance 2
●
●
●
●
●
●
●
●
HV-side protection
Numerical stabilized low impedance restricted
earth-fault protection
●
-
-
-
●
-
-
-
High impedance based restricted earth-fault
protection
-
-
●
-
-
-
●
-
Three-phase non-directional overcurrent
protection, low stage, instance 1
●
●
●
●
●
●
●
●
Three-phase non-directional overcurrent
protection, high stage, instance 1
●
●
●
●
●
●
●
●
Three-phase non-directional overcurrent
protection, instantaneous stage, instance 1
●
●
●
●
●
●
●
●
Non-directional earth-fault protection, low
stage, instance 1
●
4)
-
●
5)
-
●
4)
-
●
5)
-
Non-directional earth-fault protection, high
stage, instance 1
●
4)
-
●
5)
-
●
4)
-
●
5)
-
Negative-sequence overcurrent protection,
instance 1
●
●
●
●
●
●
●
●
Residual overvoltage protection, instance 1
-
-
-
-
●
6)
●
6)
●
6)
●
6)
Residual overvoltage protection, instance 2
-
-
-
-
●
6)
●
6)
●
6)
●
6)
Three-phase undervoltage protection, instance
1
-
-
-
-
●
●
●
●
Three-phase undervoltage protection, instance
2
-
-
-
-
●
●
●
●
Three-phase overvoltage protection, instance 1
-
-
-
-
●
●
●
●
Three-phase overvoltage protection, instance 2
-
-
-
-
●
●
●
●
Three-phase thermal overload protection for
power transformers, two time constants
●
●
●
●
●
●
●
●
Transformer Protection and Control
1MRS756891 F
RET615
Product version: 4.0
4
ABB
Summary of Contents for RET615
Page 1: ...Relion 615 series Transformer Protection and Control RET615 Product Guide...
Page 65: ...65...
Page 66: ......
Page 67: ......
