product description:
The REX521GHHPSH51G Feeder Protection relay is a key power equipment produced by ABB, which is mainly used for feeder protection in power systems to ensure the safe and stable operation of feeders (or transmission lines). The following is a detailed analysis of the relay:
I. Product overview
Manufacturer: ABB
Model: REX521GHHPSH51G
Type: feeder protection relay
Application fields: transmission grid, substation, power engineering project, industrial power system, etc
Second, functional characteristics
Multiple protection functions:
Support over current protection, overload protection, short circuit protection, grounding protection and other protection functions, can fully protect the feeder system.
When the current on the feed line exceeds the rated current, the circuit is cut off in time to prevent equipment damage or fire caused by overcurrent.
The ability to detect short-circuit faults on the feed line and quickly cut off the circuit when short-circuit current is detected to prevent serious damage caused by short circuits.
For the power system with neutral ground, it can also detect the ground fault and take appropriate protective measures.
High precision measurement:
With high-precision current and voltage measurement function, it can accurately monitor the current, voltage and other parameters in the feeder system.
Quick protection action:
With fast protection action, the fault can be quickly removed when the fault is detected, protecting the rest of the system from being affected.
Intelligent logic control:
The intelligent logic control algorithm can automatically adjust the protection parameters and action logic according to different fault conditions.
Communication interface:
Supports a variety of communication interfaces, such as IEC 61850, Modbus, etc., to facilitate data exchange and system integration with other devices.
Product overview
Manufacturer: ABB Company
Model: REX521BBHGLB01C
Type: Relay protection device
Application: Widely used in power plants, transmission and distribution systems, industrial power systems and railway power systems, for monitoring, measuring and protecting equipment in power systems, such as transformers, generators, cables and cable lines.
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