Electrical Protection in MV Switchgear: A Practical Guide
A practical introduction to MV protection: fault detection, relay logic, trip circuits, selectivity, backup and the most common ANSI functions.
A practical introduction to MV protection: fault detection, relay logic, trip circuits, selectivity, backup and the most common ANSI functions.
A technical 2026 roundup of new SF₆-free medium-voltage switchgear and protection platforms from Lucy Electric, Schneider Electric, Eaton, Ormazabal, ABB and SEL.
Nuventura India receives Siemens Energy’s Value Contribution Award, highlighting industrial partnership and momentum behind SF₆-free primary switchgear.
Lucy Electric’s AirTec LX is a pole-mounted solid-dielectric vacuum load break switch for overhead distribution networks, available up to 38 kV and prepared for remote automation.
Siemens plans major expansion of switchgear production in Frankfurt and a new supplier facility in Offenbach, creating up to 700 jobs.
Hitachi Energy reports that the world’s first commercial 550 kV SF₆-free GIS is now energized at Wuhan Yuxian substation.
Two new Berlin grid hubs will use GE Vernova’s g³-based 110 kV gas-insulated substations in Wittenau and Neukölln.
ABB argues that structured, condition-informed maintenance can reduce switchgear failure risk, improve compliance and limit costly unplanned downtime.
Schneider Electric will feature its SF₆-free AirSeT medium-voltage range alongside connected power, automation and predictive-maintenance technologies.
A practical comparison of routine testing and Factory Acceptance Testing, including purpose, scope, participants, records and acceptance criteria.