Summary

In recent years, the introduction of digital substations where equipment and protection/control panels communicate via digital signals has been actively promoted worldwide. In May 2024,

TEPCO Power Grid, Inc. commissioned Japan’s first 300 kV substation applying process buses except for the secondary circuits of instrument transformers and part of the breaker control.

Going forward, the company is planning to apply digital substations to around 300 transmission substations and around 1,300 distribution substations, making efficient construction of digital substations essential. Through the process of digitalization, TEPCO Power Grid, Inc. has acquired various knowledge and skills from experiences in system construction, field construction work, operation, and maintenance. This paper reports on initiatives to efficiently promote the construction of digital substations by systematizing the knowledge and skills related to system construction, field construction work, operation, and maintenance at power utilities, accumulating and managing them as standardized knowledge base, and establishing mechanisms for their operation and knowledge training.

Additional informations

Publication type Session Materials
Reference B5_10948_2026
Publication year
Publisher CIGRE
Country Japan
Study committees
File size 1 MB
Price for non member 30 €
Price for member 30 €

Authors

TAKEUCHI Yuki - TEPCO Power Grid, Inc. Japan; SANO Yusaku - TEPCO Power Grid, Inc. Japan; OHMORI Tomoo - TEPCO Power Grid, Inc. Japan; ICHIKAWA Yoshiharu - TEPCO Power Grid, Inc. Japan; SHINOZAKI Masafumi - TEPCO Power Grid, Inc. Japan

Keywords

Digital Substation, IEC61850, System Construction

Regarding the Management of Knowledge and Skills Required for the Construction of Digital Substations in Transmission and Distribution Companies