Protection
Line differential protection and related measurements, stabilized low-set stage
●
Line differential protection and related measurements, instantaneous high-set stage
●
Three-phase non-directional overcurrent, low-set stage
●
Three-phase non-directional overcurrent, high-set stage, instance 1
●
Three-phase non-directional overcurrent, high-set stage, instance 2
●
Three-phase non-directional overcurrent, instantaneous stage
●
Negative-sequence overcurrent, instance 1
●
Negative-sequence overcurrent, instance 2
●
Circuit breaker failure protection
●
Three-phase inrush current detection
●
Binary signal transfer
●
Control
Circuit breaker control with interlocking
●
Supervision and Monitoring
Trip-circuit supervision of two trip circuits
●
Local and remote phase currents (protection co-ordinated)
●
Current circuit supervision
●
Protection communication supervision
●
Measurement
Transient disturbance recorder
●
Three-phase current measurement
●
Current sequence components
●
Differential current measurement
●
Bias current measurement
●
3.3.2
Optional functions
The optional functions available in the IED are:
•
Modbus TCP/IP or RTU/ASCII
3.4
Physical hardware
The IED consists of two main parts: plug-in unit and case. The plug-in unit content
depends on the ordered functionality.
Section 3
1MRS756499 A
RED615 overview
16
RED615
Operation Manual