ABB RET615 Product Manual page 5

ABB
Transformer Protection and Control
RET615
Product version: 4.0
Table 2. Supported functions, continued
Functionality
Circuit breaker failure protection
LV-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 2
Three-phase non-directional overcurrent
protection, high stage, instance 2
Three-phase non-directional overcurrent
protection, instantaneous stage, instance 2
Non-directional earth-fault protection, low
stage, instance 2
Non-directional earth-fault protection, high
stage, instance 2
Negative-sequence overcurrent protection,
instance 2
11)
Arc protection, instance 1
11)
Arc protection, instance 2
11)
Arc protection, instance 3
Control
Disconnector control, instance 1
Disconnector control, instance 2
Earthing switch control
Disconnector position indication, instance 1
Disconnector position indication, instance 2
Disconnector position indication, instance 3
Earthing switch indication, instance 1
Earthing switch indication, instance 2
Tap changer position indication
Circuit-breaker control (HV-side)
Condition monitoring
Circuit-breaker condition monitoring
Trip circuit supervision, instance 1
Trip circuit supervision, instance 2
Fuse failure supervision
A B
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