ABB Relion 611 series REB611 Product Manual page 4

Busbar and Multipurpose Differential Protection and Control
REB611
Product version: 1.0
Table 2. Supported functions
Functionality
1)
Protection
High-impedance differential protection, instance 1
High-impedance differential protection, instance 2
High-impedance differential protection, instance 3
Non-directional earth-fault protection, low stage, instance 1
Non-directional earth-fault protection, high stage, instance 1
Circuit breaker failure protection
Master trip, instance 1
Master trip, instance 2
Control
Circuit-breaker control
Supervision
Trip circuit supervision, instance 1
Trip circuit supervision, instance 2
CT supervision for high-impedance protection scheme, instance 1
CT supervision for high-impedance protection scheme, instance 2
CT supervision for high-impedance protection scheme, instance 3
Measurement
Disturbance recorder
Three-phase current measurement, instance 1
Residual current measurement, instance 1
● = Included
1) The instances of a protection function represent the number of identical function blocks available in a standard configuration.
2) Io selectable by parameter, Io measured as default.
3) In REB611, CMMXU is used for measuring differential phase currents.
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3)
1MRS757467 B
Conf. A
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ABB