ABB RET620 - Supported Functions

Table 1. Supported functions
Functionality CTs & VTs
Protection
Three-phase non-directional overcurrent protection, low stage, instance 1
●
1)
Three-phase non-directional overcurrent protection, low stage, instance 2
●
2)
Three-phase non-directional overcurrent protection, high stage, instance 1
●
1)
Three-phase non-directional overcurrent protection, high stage, instance 2
●
2)
Three-phase non-directional overcurrent protection, instantaneous stage, instance 1
●
1)
Three-phase non-directional overcurrent protection, instantaneous stage, instance 2
●
2)
Three-phase directional overcurrent protection, low stage, instance 1
●
1)
Three-phase directional overcurrent protection, high stage, instance 1
●
1)
Non-directional earth-fault protection, low stage, instance 1
●
3)
Non-directional earth-fault protection, low stage, instance 2
●
4)
Non-directional earth-fault protection, high stage, instance 1
●
3)
Non-directional earth-fault protection, high stage, instance 2
●
4)
Directional earth-fault protection, low stage, instance 1
●
3)
Directional earth-fault protection, low stage, instance 2
●
3)
Directional earth-fault protection, high stage, instance 1
●
3)
Negative-sequence overcurrent protection, instance 1
●
1)
Negative-sequence overcurrent protection, instance 2
●
2)
Residual overvoltage protection, instance 1
●
1)
Residual overvoltage protection, instance 2
●
1)
Residual overvoltage protection, instance 3
●
1)
Three-phase undervoltage protection, instance 1
●
1)
Three-phase undervoltage protection, instance 2
●
1)
Three-phase undervoltage protection, instance 3
●
1)
Three-phase overvoltage protection, instance 1
●
1)
Three-phase overvoltage protection, instance 2
●
1)
Three-phase overvoltage protection, instance 3
●
1)
Positive-sequence undervoltage protection, instance 1
●
1)
Positive-sequence undervoltage protection, instance 2
●
1)
Negative-sequence overvoltage protection, instance 1
●
1)
Negative-sequence overvoltage protection, instance 2
●
1)
Frequency protection, instance 1
●
1)
Frequency protection, instance 2
●
1)
Frequency protection, instance 3
●
1)
Voltage per hertz protection, instance 1
●
1)
Voltage per hertz protection, instance 2
●
1)
Transformer Protection and Control 1MRS757846 A
RET620
Product version: 2.0
ABB 5