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Siemens Develops Medium-voltage Protection Relay Series

Siemens Reyrolle 5 Series

 

November 25, 2019

Siemens Reyrolle 5 Series of protection relays

The protection, control, monitoring and measuring of power networks is a vital element in managing electrical assets, increasing reliability, sustainability and the safety of operating personnel. With the new Reyrolle 5 Series of protection relays, Siemens is further developing its offerings for medium-voltage and industrial power networks.

The first device applicationa of the new generation of protection relay will be overcurrent and earth fault protection and transformer protection in substations. Offering a wide range of proven protection functions and IEC 61850 Ethernet communications, the Reyrolle 5 Series delivers enhanced process data such as faults, events and waveform records enabling the power network to be effectively managed. The small number of device variants allow for easy ordering and efficient engineering, while the improved hardware platform makes it even easier to operate and manage the protection relays.

As digitalization increases, a protection device must ensure a secure electricity infrastructure. The Reyrolle 5 includes cyber security features such as digitally signed firmware and these will be further enhanced with future product releases along with security patches to address any specific threats. Reyrolle 5 offers an intuitive design with a large graphical display, tactile pushbuttons, programmable LEDs, and the user-friendly, next-generation Reydisp software. The protection relay already provides comprehensive functionalities like wide-range power supply, configurable digital input thresholds, current and voltage transformer connections, and serial and Ethernet communication. All communications protocols are also included as standard. 
 

  • Designed for future power networks and digital substations
  • Comprehensive protection functionality
  • IEC 61850 Ethernet communications
  • Enhanced process data 
  • Enhanced cyber security and communications 
  • User-friendly interfaces and software

 

 
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