The 2.2 version of ABB REX 521 Connectivity Package is available as a free download on our website. The most popular version among the program users is 2.2. This free program was originally created by ABB Oy, Distribution Automation. The program belongs to Education Tools.
From the developer:
The feeder protection relay REX 521 is designed for protection, control, measuring and supervision in medium voltage networks and for protection of large or medium-size three-phase a.c. motors in circuit breaker controlled motor drives. Typical applications include incoming, outgoing feeders and motor feeders as well as substation protection. Further, the relay can, e.g.
You may want to check out more software, such as ABB REM 543/545 Connectivity Package, ABB REF542plus Connectivity Package Ver. SP3 or ABB IED Connectivity Package REU611 Ver. User Documentation, which might be related to ABB REX 521 Connectivity Package.
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