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
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