Description
Product details:
Feeder protection relay REX 521 is designed for protection, control, measurement, and supervision in medium voltage networks, as well as protection of medium to large three-phase AC motors in circuit breaker control motor drives. Typical applications include input, output and motor feeders and substation protection. In addition, the relay can be used for example as backup protection for power transformers and backup for high voltage line protection relays.
The REX 521 Feeder protection Relay is further enriched with additional features to provide more effective protection, extended measurement functions, supervision, control functions and connectivity for your power network. REX 521 is primarily used in single bus solutions, using a circuit breaker for various protections.
The REX 521 Feeder protection Relay is further enriched with additional features to provide more effective protection, extended measurement functions, supervision, control functions and connectivity for your power network. REX 521 is primarily used in single bus solutions, using a circuit breaker for various protections.
REX 521 is available in prefabricated standard configurations for different types of networks. Typical applications include radially isolated neutral lines, resonant ground, firmly grounded, and resistance grounded incoming and outgoing lines in systems.
The scope of REX 521
Protection, control, measurement and supervision in medium voltage network, and protection of large and medium-sized three-phase AC motors
Other product recommendations:
NPCT-01C | AB 80165-138-53-R | PR6424/002-100 |
NPCT-01 | AB 80165-138 | PR6424/001-021 |
NMTU-21 | AB 80165-078-52-R | PR6424/001-100 |
NMBA-01 | AB 80165-018 | PR6424/119-121 |
NKLS01-L19 | AB 80160-077 | PR6424/119-000 |
NKLS01-L15 | AB 80157-072-51-R | PR6424/118-121 |
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