XRI1-IR
XRI1-IR – Digital multifunctional relay for time overcurrent protection

The digital relay type XRI1-IR as time overcurrent protection has been designed for the use in electrical machines, lines and grids. The protective functions of XRI1-IR that are implemented in only one device are summarized as follows:  Independent (Definite) time overcurrent relay.  Inverse time overcurrent relay with selectable characteristics.  Integrated determination of fault direction for application to doubly infeeded lines or meshed systems. Furthermore, the relay XRI1-IR can be employed as a back-up protection for distance and differential protective relays.

FEATURES & FUNCTIONALITY

The digital relay type XRI1-IR as time overcurrent protection has been designed for the use in electrical machines, lines and grids. The protective functions of XRI1-IR that are implemented in only one device are summarized as follows:

 Independent (Definite) time overcurrent relay.

 Inverse time overcurrent relay with selectable characteristics.

 Integrated determination of fault direction for application to doubly infeeded lines or meshed systems.

Furthermore, the relay XRI1-IR can be employed as a back-up protection for distance and differential protective relays.