Functionality Protection - ABB REF615 Product Manual

Feeder Protection and Control
REF615
Product version: 2.0
Functionality
Protection
Directional earth-fault, low-set stage,
instance 1
Directional earth-fault, low-set stage,
instance 2
Directional earth-fault, high-set stage
Non-directional (cross country) earth-fault, us-
ing calculated Io
Transient/intermittent earth-fault
Non-directional earth-fault, low-set stage
Non-directional earth-fault, high-set stage
Non-directional earth-fault,
instantaneous stage
Non-directional sensitive earth-fault
Negative-sequence overcurrent,
instance 1
Negative-sequence overcurrent,
instance 2
Phase discontinuity
Thermal overload
Circuit-breaker failure
Three-phase overvoltage, instance 1
Three-phase overvoltage, instance 2
Three-phase overvoltage, instance 3
Positive sequence undervoltage
Negative sequence overvoltage
Residual overvoltage, instance 1
Residual overvoltage, instance 2
Residual overvoltage, instance 3
Three-phase undervoltage, instance 1
Three-phase undervoltage, instance 2
Three-phase undervoltage, instance 3
Three-phase inrush current detection
Arc protection with three sensors
Control
Circuit breaker control with basic
interlocking
1)
Circuit breaker control with extended
interlocking 2)
Auto-reclosing of one circuit breaker
Supervision and Monitoring
Fuse failure supervision
Current circuit supervision
Circuit breaker condition monitoring
Trip-circuit supervision of two trip
circuits
Disconnector position indication
Earthing switch position indication
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