ABB Products


Protection Relays

Numerical Relays

Numerical Relays

Numerical relays are microprocessor relays that have advantages and differences over electromechanical and static relays, the major difference being in the way they are wired and set and configured.

Electromechanical and static relays are manually configured with WiFi fixing, but microprocessor relays are programmable and can control the behavior of the relay, most of which are multifunction.

Attributes:

  • Self-checking facility
  • Low burden relays improve accuracy
  • Fast fiber optical communication with substation LAN
  • Adaptive relaying schemes
  • Permit storage of historical data
  • Time stamping

REB500

۷SA6 Protection Relay is a remote relay used for protection, control and automation with a graphical display based on the SIPROTEC 4 system. A very important case is the high flexibility of this relay, which makes it applicable at all voltage levels.

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REF615

Series SJ61 / 62/63/64 Series SIPROTEC 4 relays are numerical protection relays capable of controlling and monitoring functions that provide cost-effective management of the power system. These relays have several protection modules, including motor protection, overload and power, breaker failure, Under / Over voltage, Under / Over frequency. , Auto-Reclosure, Fault Locator, Lockout. , Overcurrent and Earth Fault Protection, etc

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REF601

This relay is a simple, flexible control relay that is ideal for medium voltage high voltage and high voltage substations. Designed with the same SIPROTEC 4 generation, it uses a simple DIGSI 4 configuration tool and a large graphical display with a keypad and an alarm list display. It should be noted that the operator panel is flexible enough that it can be installed separately from the relay and that the relay can be connected and optimized to three switches with three states.

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REG630

This relay is a numerical protection, control and surveillance device that includes “flexible protective functions” and can accommodate up to 20 protective functions depending on individual needs. This relay can control power switches, switching devices, and more automation functions, allowing the user to implement their own functions.

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REM620

This relay can be used as a protection and monitoring control relay for distribution feeders and transmission lines in the Venice Voltage in networks that have direct or resistive grounding as well as in networks not grounded. This relay is suitable for radial or loop networks and for lines with single or multi-terminal feeds and includes “flexible protection functions” which can be added to the protection function as required. It should be noted that flexible communication interfaces have open source architecture with control systems

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RET630

This relay is actually a protection relay intended for use on transmission lines, this unique relay offers complete range security and also includes all the features generally required to protect any power grid. This relay is built to provide fast and also clear specific errors on transmission lines and underwater networks.

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