REX521BBHGLB01C丨ABB Feeder Protection Relay

REX521BBHGLB01C丨ABB Feeder Protection Relay

Brand: ABB

Product ID: REX521BBHGLB01C

Condition: New / used

Terms of payment: Paypal、T/T 、Western Union

Category:

Description

The REX 521 Feeder Protection Relay providesyour medium-voltage network with efficientprotection, measuring, supervision and basiccontrol functions. The typical REX 521 applications include incoming and outgoing feedersin isolated neutral, resonant earthed, solidlyearthed and resistively earthed systems.

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This state-of-the-art protection relay complements the ABB range of solutions from basicprotection relays to intelligent feeder terminalsfor distribution system applications. REX 521provides your network with standard protectionfunctions such as three-phase overcurrent,non-directional and directional earth-fault,thermal overload protection and phase discontinuity protection. Additionally, the relaysupervises power quality in your network bymeasuring harmonics.

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Improved user-friendliness due to multilingualuser-interface and clear text messages foralarms and time-stamped events.The REX 521 offers advanced condition monitoring for your auxiliary equipment as wellas for the relay itself. The supervision andcondition monitoring functions add to theoperational safety of the equipment and associated circuitry and devices such as measuringand tripping circuits and the circuit breaker.

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In addition to its protection functions,the REX 521 relay offers: - Versatile measurements for monitoring your network - Integrated disturbance functionswith high sampling frequencyenabling accurate disturbancedetection - Circuit breaker control - Auto-reclosing - Condition monitoring - Total harmonic distortion (THD)for power quality measurements The REX 521 relay is capable ofcontrolling one circuit breaker ordisconnector via a substation controlsystem or binary inputs.

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