Digital Substation

With the development of protection, automation and communication technology, NR’s digital substation technologies offer a complete digitalized solution that fully connects the control room to the switchyard with optic fiber links. This proven solution reduces your capital investment, operational and maintenance costs. It also offers unmatched information integration, and provides better reliability and security for substations.

Digital Substation


  • IEC61850 Based Communication Network
    The baseline communication topology of NR’s Digital substation Solution consists of a process bus and a station bus. Other communication topologies, such as optical Point-to-Point network, are also supported. The process bus employs IEC 61850-9-2 Sampling Value, IEC 61850-8-1 GOOSE for time-critical message and IEEE 1588 protocols. The station bus employs IEC 61850-8-1 MMS, GOOSE message and SNTP protocols. All of devices are fully compatible with IEC61850 ed1&ed2.
  • True Optical Links
    Communications between equipment can be realized by fiber links in the entire substation. This unique and smart solution is suitable for newly constructed and refurbishment substations.
  • Reliable Electronic CTs/VTs
    NR Electric has pursued advanced research on electronic CTs and VTs to ensure maximum reliability and availability in the applications of metering and protection relays.

Case Study

Beijing Future City 220KV Digital Substation

Beijing 220kV Future City Substation is a typical digital substation invested by State Grid Corporation of China(SGCC) in 2013. It is a vital load-center substation in Beijing using underground installation. In the year 2013, NR Electric (NR) won the order from SGCC to provide its innovative digital substation solution to this Substation. In the end of December 2013, after one month’s site test and commissioning, the substation was put into service. [View More...]


  • Excellent service team
    Our service engineers possess bachelor’s degree or higher, and have rich sound professional skills and plentiful service experience.
  • Comprehensive support service
    24h hot line, our technical experts and support team of excellent skills provide online support services
  • Superior service guarantee
    User projects are guaranteed by our reliable service record and projects filing management, full series spares, and ex-work factory tests.
  • Complete training mechanism
    Training center and training lab are available for employees and client periodic and non-scheduled training.
  • Complete feedback system
    Through service reports, and customer feedbacks, client comments are obtained and taken as reference to continuously improve our services to meet with customer requirements.